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未验证 提交 6597ccb0 编写于 作者: T Tao Luo 提交者： GitHub
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Merge pull request #15413 from luotao1/legacy_code 

remove legacy code
上级 9f8f0fc2 c102f427
展开全部 隐藏空白更改
内联 并排
Showing with 7 addition and 187876 deletion

要显示的变更太多。

To preserve performance only 1000 of 1000+ files are displayed.
文本差异 电子邮件补丁
.travis.yml
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......@@ -4,7 +4,6 @@ cache:
- $HOME/.ccache
- $HOME/.cache/pip
- $TRAVIS_BUILD_DIR/build/third_party
- $TRAVIS_BUILD_DIR/build_android/third_party
sudo: required
dist: trusty
services:
......@@ -13,7 +12,6 @@ os:
- linux
env:
- JOB=check_style
- JOB=build_android
addons:
ssh_known_hosts: 13.229.163.131
before_install:
......
CMakeLists.txt
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......@@ -279,9 +279,6 @@ include(inference_lib) # add paddle fluid inference libraries
include_directories("${PADDLE_SOURCE_DIR}")
include_directories("${PADDLE_SOURCE_DIR}/paddle/legacy/cuda/include")
include_directories("${CMAKE_CURRENT_BINARY_DIR}/proto")
include_directories("${CMAKE_CURRENT_BINARY_DIR}/go/pserver/client/c")
set(EXTERNAL_LIBS
gflags
......@@ -320,21 +317,6 @@ if(USE_NNPACK)
list(APPEND EXTERNAL_LIBS ${NNPACK_LIBS})
endif(USE_NNPACK)
add_subdirectory(proto)
if(NOT MOBILE_INFERENCE AND NOT WITH_FLUID_ONLY)
# "add_subdirectory(go)" should be placed after the following loine,
# because it depends on paddle/optimizer.
add_subdirectory(paddle/legacy/optimizer)
endif()
# "add_subdirectory(paddle)" and "add_subdirectory(python)" should be
# placed after this block, because they depends on it.
if(WITH_GOLANG)
enable_language(Go)
add_subdirectory(go)
endif(WITH_GOLANG)
set(PADDLE_PYTHON_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}/python/build")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O3 -g -DNDEBUG")
......
go/.gitignore 已删除 100644 → 0
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vendor/
.glide/
proto/*.go
go/CMakeLists.txt 已删除 100644 → 0
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# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
add_subdirectory(pserver/client/c)
add_subdirectory(cmd/pserver)
add_subdirectory(cmd/master)
add_subdirectory(master/c)
add_subdirectory(master)
add_subdirectory(pserver)
add_subdirectory(pserver/client)
add_subdirectory(utils/networkhelper)
go/cmd/master/CMakeLists.txt 已删除 100644 → 0
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# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
go_binary(master SRC master.go)
go/cmd/master/master.go 已删除 100644 → 0
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// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"fmt"
"net"
"net/http"
"net/rpc"
"os"
"os/signal"
"strconv"
"strings"
"time"
log "github.com/inconshreveable/log15"
"github.com/namsral/flag"
"github.com/PaddlePaddle/Paddle/go/master"
"github.com/PaddlePaddle/Paddle/go/utils/networkhelper"
)
func main() {
port := flag.Int("port", 8080, "port of the master server.")
ttlSec := flag.Int("ttl", 60, "etcd lease TTL in seconds.")
endpoints := flag.String("endpoints", "http://127.0.0.1:2379", "comma separated etcd endpoints. If empty, fault tolerance will not be enabled.")
taskTimeoutDur := flag.Duration("task-timout-dur", 20*time.Minute, "task timout duration.")
taskTimeoutMax := flag.Int("task-timeout-max", 3, "max timtout count for each task before it being declared failed task.")
chunkPerTask := flag.Int("chunk-per-task", 10, "chunk per task.")
logLevel := flag.String("log-level", "info",
"log level, possible values: debug, info, warn, error, crit")
flag.Parse()
lvl, err := log.LvlFromString(*logLevel)
if err != nil {
panic(err)
}
log.Root().SetHandler(
log.LvlFilterHandler(lvl, log.CallerStackHandler("%+v", log.StderrHandler)),
)
if *endpoints == "" {
log.Warn("-endpoints not set, fault tolerance not be enabled.")
}
var store master.Store
if *endpoints != "" {
eps := strings.Split(*endpoints, ",")
ip, err := networkhelper.GetExternalIP()
if err != nil {
log.Crit("get external ip error", log.Ctx{"error": err})
panic(err)
}
addr := fmt.Sprintf("%s:%d", ip, *port)
store, err = master.NewEtcdClient(eps, addr, master.DefaultLockPath, master.DefaultAddrPath, master.DefaultStatePath, *ttlSec)
if err != nil {
log.Crit("error creating etcd client.", log.Ctx{"error": err})
panic(err)
}
} else {
store = &master.InMemStore{}
}
shutdown := func() {
log.Info("shutting down gracefully")
err := store.Shutdown()
if err != nil {
log.Error("shutdown error", log.Ctx{"error": err})
}
}
// Guaranteed to run even panic happens.
defer shutdown()
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
s, err := master.NewService(store, *chunkPerTask, *taskTimeoutDur, *taskTimeoutMax)
if err != nil {
log.Crit("error creating new service.", log.Ctx{"error": err})
panic(err)
}
err = rpc.Register(s)
if err != nil {
log.Crit("error registering to etcd.", log.Ctx{"error": err})
panic(err)
}
rpc.HandleHTTP()
l, err := net.Listen("tcp", ":"+strconv.Itoa(*port))
if err != nil {
log.Crit("error listing to port", log.Ctx{"error": err, "port": *port})
panic(err)
}
go func() {
err = http.Serve(l, nil)
if err != nil {
log.Crit("error serving HTTP", log.Ctx{"error": err})
panic(err)
}
}()
<-c
}
go/cmd/pserver/CMakeLists.txt 已删除 100644 → 0
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# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
go_binary(pserver SRCS pserver.go DEPS paddle_go_optimizer)
go/cmd/pserver/pserver.go 已删除 100644 → 0
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// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"net"
"net/http"
"net/rpc"
"os"
"os/signal"
"strconv"
"time"
"github.com/namsral/flag"
"github.com/topicai/candy"
"github.com/PaddlePaddle/Paddle/go/pserver"
log "github.com/inconshreveable/log15"
)
func main() {
port := flag.Int("port", 8001, "port of the pserver")
index := flag.Int("index", -1, "index of the pserver, set to -1 if use etcd for auto pserver index registry")
etcdEndpoint := flag.String("etcd-endpoint", "http://127.0.0.1:2379",
"comma separated endpoint string for pserver to connect to etcd")
dialTimeout := flag.Duration("dial-timeout", 5*time.Second, "dial timeout")
etcdTTL := flag.Int("etcd-ttl", 5, "etcd time to live in seconds")
numPservers := flag.Int("num-pservers", 1, "total pserver count in a training job")
checkpointPath := flag.String("checkpoint-path", "/checkpoints/", "save checkpoint path")
checkpointInterval := flag.Duration("checkpoint-interval", 600*time.Second, "save checkpoint per interval seconds")
logLevel := flag.String("log-level", "info",
"log level, possible values: debug, info, warn, error, crit")
flag.Parse()
lvl, err := log.LvlFromString(*logLevel)
if err != nil {
panic(err)
}
log.Root().SetHandler(
log.LvlFilterHandler(lvl, log.CallerStackHandler("%+v", log.StderrHandler)),
)
var idx int
var cp pserver.Checkpoint
var e *pserver.EtcdClient
if *index >= 0 {
idx = *index
} else {
e = pserver.NewEtcdClient(*etcdEndpoint, *numPservers, *dialTimeout, *etcdTTL)
idx, err = e.Register(*port)
candy.Must(err)
cp, err = pserver.LoadCheckpoint(e, idx)
if err != nil {
if err == pserver.ErrCheckpointNotFound {
log.Info("load checkpoint error", "error", err)
} else {
panic(err)
}
}
}
shutdown := func() {
log.Info("shutting down gracefully")
sErr := e.Shutdown()
if sErr != nil {
log.Error("error shutting down", log.Ctx{"error": sErr})
}
}
// Guaranteed to run even panic happens.
defer shutdown()
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
s, err := pserver.NewService(idx, *checkpointInterval, *checkpointPath, e, cp)
candy.Must(err)
err = rpc.Register(s)
candy.Must(err)
rpc.HandleHTTP()
l, err := net.Listen("tcp", ":"+strconv.Itoa(*port))
candy.Must(err)
go func() {
log.Info("serving pserver", log.Ctx{"port": *port})
err = http.Serve(l, nil)
candy.Must(err)
}()
<-c
}
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// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package connection
import (
"errors"
"net/rpc"
"sync"
log "github.com/sirupsen/logrus"
)
// TODO(helin): add TCP re-connect logic
// Conn is a connection to a parameter server
type Conn struct {
mu sync.Mutex
client *rpc.Client
waitConn chan struct{}
}
// New creates a new connection.
func New() *Conn {
c := &Conn{}
return c
}
// Close closes the connection.
func (c *Conn) Close() error {
c.mu.Lock()
defer c.mu.Unlock()
if c.client == nil {
return nil
}
return c.client.Close()
}
// Connect connects the connection to a address.
func (c *Conn) Connect(addr string) error {
c.mu.Lock()
if c.client != nil {
err := c.client.Close()
if err != nil {
c.mu.Unlock()
return err
}
c.client = nil
}
c.mu.Unlock()
client, err := rpc.DialHTTP("tcp", addr)
if err != nil {
return err
}
c.mu.Lock()
defer c.mu.Unlock()
if c.client == nil {
c.client = client
if c.waitConn != nil {
close(c.waitConn)
c.waitConn = nil
}
} else {
err := client.Close()
if err != nil {
log.Errorln(err)
}
return errors.New("client already set from a concurrent goroutine")
}
return nil
}
// TODO(helin): refactor Call to be able to perform given retry
// policy.
// Call make a RPC call.
//
// Call will be blocked until the connection to remote RPC service
// being established.
func (c *Conn) Call(serviceMethod string, args interface{}, reply interface{}) error {
c.mu.Lock()
client := c.client
var waitCh chan struct{}
if client == nil {
if c.waitConn != nil {
waitCh = c.waitConn
} else {
waitCh = make(chan struct{})
c.waitConn = waitCh
}
}
c.mu.Unlock()
if waitCh != nil {
// wait until new connection being established
<-waitCh
return c.Call(serviceMethod, args, reply)
}
return client.Call(serviceMethod, args, reply)
}
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# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
if(WITH_TESTING)
go_test(master_test)
endif()
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# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
go_library(paddle_master SHARED DEPS paddle_go_optimizer)
go/master/c/client.go 已删除 100644 → 0
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// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
/*
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#define PADDLE_MASTER_OK 0
#define PADDLE_MASTER_ERROR -1
#define PADDLE_SAVE_MODEL_OK 1
#define PADDLE_SAVE_MODEL_SKIP 0
typedef int paddle_master_client;
*/
import "C"
import (
"strings"
"sync"
"time"
"unsafe"
"github.com/PaddlePaddle/Paddle/go/master"
log "github.com/inconshreveable/log15"
)
var mu sync.Mutex
var handleMap = make(map[C.paddle_master_client]*master.Client)
var curHandle C.paddle_master_client
func init() {
log.Root().SetHandler(
log.LvlFilterHandler(log.LvlWarn, log.CallerStackHandler("%+v", log.StderrHandler)),
)
}
func add(c *master.Client) C.paddle_master_client {
mu.Lock()
defer mu.Unlock()
client := curHandle
curHandle++
handleMap[client] = c
return client
}
func get(client C.paddle_master_client) *master.Client {
mu.Lock()
defer mu.Unlock()
return handleMap[client]
}
func remove(client C.paddle_master_client) *master.Client {
mu.Lock()
defer mu.Unlock()
h := handleMap[client]
delete(handleMap, client)
return h
}
//export paddle_new_etcd_master_client
//
// bufSize is the record buffer size.
func paddle_new_etcd_master_client(etcdEndpoints *C.char, timeout int, bufSize int) C.paddle_master_client {
p := C.GoString(etcdEndpoints)
endpoints := strings.Split(p, ",")
c, err := master.NewClient(
master.WithEtcd(endpoints, time.Duration(timeout)*time.Second),
master.WithBuffer(bufSize),
)
if err != nil {
panic(err)
}
return add(c)
}
//export paddle_new_master_client
//
// bufSize is the record buffer size.
func paddle_new_master_client(addr *C.char, bufSize int) C.paddle_master_client {
a := C.GoString(addr)
c, err := master.NewClient(master.WithAddr(a), master.WithBuffer(bufSize))
if err != nil {
panic(err)
}
return add(c)
}
//export paddle_release_master_client
func paddle_release_master_client(client C.paddle_master_client) {
remove(client)
}
//export paddle_start_get_records
func paddle_start_get_records(client C.paddle_master_client, pass C.int) {
c := get(client)
c.StartGetRecords(int(pass))
}
//export paddle_set_dataset
func paddle_set_dataset(client C.paddle_master_client, path **C.char, size C.int) C.int {
c := get(client)
var paths []string
for i := 0; i < int(size); i++ {
ptr := (**C.char)(unsafe.Pointer(uintptr(unsafe.Pointer(path)) + uintptr(i)*unsafe.Sizeof(*path)))
str := C.GoString(*ptr)
paths = append(paths, str)
}
err := c.SetDataset(paths)
if err != nil {
log.Error("error set dataset",
log.Ctx{"error": err, "paths": paths})
return C.PADDLE_MASTER_ERROR
}
return C.PADDLE_MASTER_OK
}
// paddle_next_record gets the nexts training record.
//
// returns number of bytes of the records if success, -1 if failed, -2 if pass end.
//
//export paddle_next_record
func paddle_next_record(client C.paddle_master_client, record **C.uchar) C.int {
c := get(client)
r, err := c.NextRecord()
if err != nil {
// NOTE: use errors to indicate pass ends
if err.Error() == master.ErrAllTaskFailed.Error() ||
err.Error() == master.ErrNoMoreAvailable.Error() ||
err.Error() == master.ErrPassBefore.Error() {
return -2
}
*record = (*C.uchar)(nil)
return -1
}
if len(r) == 0 {
// Empty record
*record = (*C.uchar)(nil)
return 0
}
size := C.size_t(len(r))
*record = (*C.uchar)(C.malloc(size))
C.memcpy(unsafe.Pointer(*record), unsafe.Pointer(&r[0]), size)
return C.int(size)
}
// paddle_request_save_model requests the master server to approve the
// caller to save the model.
//
// returns 1 if the save the model request is approved, 0 if the
// request is rejected because other trainer is saving the model, -1
// if error happened.
//
//export paddle_request_save_model
func paddle_request_save_model(client C.paddle_master_client, trainerID string, blockMS int) C.int {
c := get(client)
need, err := c.RequestSaveModel(trainerID, time.Duration(blockMS)*time.Millisecond)
if err != nil {
log.Error("error request save model", log.Ctx{"error": err})
return C.PADDLE_MASTER_ERROR
}
if need {
return C.PADDLE_SAVE_MODEL_OK
}
return C.PADDLE_SAVE_MODEL_SKIP
}
//export mem_free
func mem_free(p unsafe.Pointer) {
// "free" may be a better name for this function, but doing so
// will cause calling any function of this library from Python
// ctypes hanging.
C.free(p)
}
func main() {}
go/master/client.go 已删除 100644 → 0
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// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package master
import (
"os"
"time"
"github.com/PaddlePaddle/Paddle/go/connection"
"github.com/PaddlePaddle/recordio"
"github.com/coreos/etcd/clientv3"
log "github.com/inconshreveable/log15"
)
// Client is the client of the master server.
type Client struct {
conn *connection.Conn
ch chan record
bufSize int
}
type record struct {
r []byte
err error
}
// WithBuffer sets the client to buffer the training record.
//
// bufSize is the record buffer size. NextRecord will read from this
// buffer.
func WithBuffer(bufSize int) func(*Client) error {
return func(c *Client) error {
if bufSize <= 0 {
return nil
}
c.bufSize = bufSize
return nil
}
}
// WithAddr sets the client to use fixed master address.
func WithAddr(addr string) func(c *Client) error {
return func(c *Client) error {
ch := make(chan string, 1)
ch <- addr
go c.monitorMaster(ch)
return nil
}
}
// WithEtcd sets the client to use etcd for master discovery.
func WithEtcd(endpoints []string, timeout time.Duration) func(*Client) error {
return func(c *Client) error {
var cli *clientv3.Client
f := func() error {
var err error
cli, err = clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: timeout,
})
return err
}
for {
err := f()
if err != nil {
log.Warn("create etcd client error", log.Ctx{"error": err})
} else {
break
}
time.Sleep(time.Second)
}
ch := make(chan string, 1)
a, err := GetKey(cli, DefaultAddrPath, timeout)
if err != nil {
return err
}
if a != "" {
// Master is registered, send to the master address
// channel.
ch <- a
}
go watchKey(cli, DefaultAddrPath, ch)
go c.monitorMaster(ch)
return nil
}
}
// NewClient creates a new Client.
func NewClient(opts ...func(*Client) error) (*Client, error) {
c := &Client{}
c.conn = connection.New()
for _, opt := range opts {
err := opt(c)
if err != nil {
return nil, err
}
}
c.ch = make(chan record, c.bufSize)
return c, nil
}
// StartGetRecords must be called at beginning of each pass
func (c *Client) StartGetRecords(passID int) {
go c.getRecords(passID)
}
func (c *Client) getRecords(passID int) {
i := 0
for {
t, err := c.getTask(passID)
if err != nil {
if err.Error() == ErrPassBefore.Error() ||
err.Error() == ErrNoMoreAvailable.Error() ||
err.Error() == ErrAllTaskFailed.Error() {
c.ch <- record{nil, err}
break
}
if i%60 == 0 {
log.Debug("getTask of passID error.",
log.Ctx{"error": err, "passID": passID})
i = 0
}
// if err.Error() == ErrPassAfter.Error()
// wait util last pass finishes
// if other error such as network error
// wait to reconnect or task time out
time.Sleep(time.Second * 3)
i += 3
continue
}
for _, chunk := range t.Chunks {
f, e := os.Open(chunk.Path)
if e != nil {
log.Error("error open chunk", log.Ctx{"error": e})
continue
}
s := recordio.NewRangeScanner(f, &chunk.Index, -1, -1)
for s.Scan() {
c.ch <- record{s.Record(), nil}
}
if s.Err() != nil {
c.ch <- record{nil, s.Err()}
log.Error(
"error scan chunk",
log.Ctx{"error": err, "path": chunk.Path},
)
}
err = f.Close()
if err != nil {
log.Error("error close record file", log.Ctx{"error": err})
}
}
// We treat a task as finished whenever the last data
// instance of the task is read. This is not exactly
// correct, but a reasonable approximation.
err = c.taskFinished(t.Meta.ID)
if err != nil {
log.Error("task finish callback error.", log.Ctx{"error": err})
}
}
}
func (c *Client) monitorMaster(addrCh <-chan string) {
lastMaster := ""
for curMaster := range addrCh {
// connect to the new address once address changed.
if curMaster != lastMaster {
if curMaster == "" {
err := c.conn.Close()
if err != nil {
log.Error("close old master addr error", log.Ctx{"error": err})
}
} else {
err := c.conn.Connect(curMaster)
if err != nil {
log.Error("connect to new master addr error", log.Ctx{"error": err})
// connect to addr failed, set
// to last known addr in order
// to retry next time.
curMaster = lastMaster
}
}
}
lastMaster = curMaster
}
}
// SetDataset sets dataset to dispatch for the master server.
//
// SetDataset can be call multiple times at one pass. But only the first call
// will be honored.
//
// After all tasks are done, another call of SetDataset will start another pass.
func (c *Client) SetDataset(globPaths []string) error {
err := c.conn.Call("Service.SetDataset", globPaths, nil)
return err
}
// getTask gets a new task from the master server.
func (c *Client) getTask(passID int) (Task, error) {
var t Task
err := c.conn.Call("Service.GetTask", passID, &t)
return t, err
}
// TaskFinished tells the master server a task is finished.
func (c *Client) taskFinished(taskID int) error {
return c.conn.Call("Service.TaskFinished", taskID, nil)
}
// TaskFailed tell the master server as task is failed.
func (c *Client) taskFailed(meta TaskMeta) error {
return c.conn.Call("Service.TaskFailed", meta, nil)
}
// NextRecord returns next record in the dataset.
//
// NextRecord will block until the next record is available. It is
// thread-safe.
func (c *Client) NextRecord() ([]byte, error) {
r := <-c.ch
return r.r, r.err
}
// RequestSaveModel requests the master server to approve the caller
// to save the model.
func (c *Client) RequestSaveModel(trainerID string, blockDur time.Duration) (bool, error) {
var need bool
err := c.conn.Call("Service.RequestSaveModel", SaveModelRequest{TrainerID: trainerID, BlockDur: blockDur}, &need)
return need, err
}
go/master/client_internal_test.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package master
import (
"fmt"
"net"
"net/http"
"net/rpc"
"os"
"strconv"
"strings"
"testing"
"time"
"github.com/PaddlePaddle/Paddle/go/connection"
"github.com/PaddlePaddle/recordio"
)
const (
totalTask = 20
chunkPerTask = 10
)
func TestGetFinishTask(t *testing.T) {
const path = "/tmp/master_client_test_0"
l, err := net.Listen("tcp", ":0")
if err != nil {
panic(err)
}
ss := strings.Split(l.Addr().String(), ":")
p, err := strconv.Atoi(ss[len(ss)-1])
if err != nil {
panic(err)
}
go func(l net.Listener) {
s, sErr := NewService(&InMemStore{}, chunkPerTask, time.Second, 1)
if sErr != nil {
panic(sErr)
}
server := rpc.NewServer()
sErr = server.Register(s)
if sErr != nil {
panic(sErr)
}
mux := http.NewServeMux()
mux.Handle(rpc.DefaultRPCPath, server)
sErr = http.Serve(l, mux)
if sErr != nil {
panic(sErr)
}
}(l)
f, err := os.Create(path)
if err != nil {
panic(err)
}
for i := 0; i < totalTask*chunkPerTask; i++ {
w := recordio.NewWriter(f, -1, -1)
_, err = w.Write(nil)
if err != nil {
panic(err)
}
// call Close to force RecordIO writing a chunk.
err = w.Close()
if err != nil {
panic(err)
}
}
err = f.Close()
if err != nil {
panic(err)
}
// Manually intialize client to avoid calling c.getRecords()
c := &Client{}
c.conn = connection.New()
addr := fmt.Sprintf(":%d", p)
ch := make(chan string, 1)
ch <- addr
go c.monitorMaster(ch)
err = c.SetDataset([]string{path})
if err != nil {
panic(err)
}
checkOnePass := func(i int) {
var tasks []Task
for idx := 0; idx < totalTask; idx++ {
task, cErr := c.getTask(i)
if cErr != nil && cErr.Error() != ErrNoMoreAvailable.Error() && cErr.Error() != ErrPassAfter.Error() {
t.Fatalf("error: %v, pass: %d\n", cErr, i)
}
tasks = append(tasks, task)
}
// getting task before task finishes should return error
_, cErr := c.getTask(i)
if cErr == nil {
t.Fatalf("Should get error, pass: %d\n", i)
}
cErr = c.taskFinished(tasks[0].Meta.ID)
if cErr != nil {
t.Fatalf("Error: %v, pass: %d\n", cErr, i)
}
// call taskFailed once won't put the task to failed queue, just ensure
// the call
cErr = c.taskFailed(tasks[0].Meta)
if cErr != nil {
t.Fatalf("Error: %v, pass: %d\n", cErr, i)
}
tasks = tasks[1:]
_, cErr = c.getTask(i)
if cErr != nil && cErr.Error() != ErrNoMoreAvailable.Error() && cErr.Error() != ErrPassAfter.Error() {
t.Fatalf("Should be ErrNoMoreAvailable or ErrPassAfter: %s", cErr)
}
for _, task := range tasks {
cErr = c.taskFinished(task.Meta.ID)
if cErr != nil {
t.Fatal(cErr)
}
}
}
for i := 0; i < 10; i++ {
// init pass data
c.StartGetRecords(i)
checkOnePass(i)
}
}
go/master/client_test.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package master_test
import (
"fmt"
"net"
"net/http"
"net/rpc"
"os"
"runtime"
"strconv"
"strings"
"sync"
"testing"
"time"
"github.com/PaddlePaddle/Paddle/go/master"
"github.com/PaddlePaddle/recordio"
)
// tool function for testing output goroutine ids
func goid() int {
var buf [64]byte
n := runtime.Stack(buf[:], false)
idField := strings.Fields(strings.TrimPrefix(string(buf[:n]), "goroutine "))[0]
id, err := strconv.Atoi(idField)
if err != nil {
panic(fmt.Sprintf("cannot get goroutine id: %v", err))
}
return id
}
func TestNextRecord(t *testing.T) {
const (
path = "/tmp/master_client_TestFull"
total = 50
)
l, err := net.Listen("tcp", ":0")
if err != nil {
panic(err)
}
ss := strings.Split(l.Addr().String(), ":")
p, err := strconv.Atoi(ss[len(ss)-1])
if err != nil {
panic(err)
}
go func(l net.Listener) {
s, err := master.NewService(&master.InMemStore{}, 1, time.Second*60, 1)
if err != nil {
panic(err)
}
server := rpc.NewServer()
err = server.Register(s)
if err != nil {
panic(err)
}
mux := http.NewServeMux()
mux.Handle(rpc.DefaultRPCPath, server)
err = http.Serve(l, mux)
if err != nil {
panic(err)
}
}(l)
f, err := os.Create(path)
if err != nil {
panic(err)
}
w := recordio.NewWriter(f, 1, -1)
for i := 0; i < total; i++ {
_, err = w.Write([]byte{byte(i)})
if err != nil {
panic(err)
}
}
err = w.Close()
if err != nil {
panic(err)
}
err = f.Close()
if err != nil {
panic(err)
}
// start several client to test task fetching
var wg sync.WaitGroup
for i := 0; i < 4; i++ {
wg.Add(1)
// test for multiple concurrent clients
go func() {
defer wg.Done()
// each go-routine needs a single client connection instance
c, e := master.NewClient(master.WithAddr(fmt.Sprintf(":%d", p)), master.WithBuffer(1))
if e != nil {
t.Fatal(e)
}
e = c.SetDataset([]string{path})
if e != nil {
panic(e)
}
// test for n passes
for pass := 0; pass < 10; pass++ {
c.StartGetRecords(pass)
received := make(map[byte]bool)
taskid := 0
for {
r, e := c.NextRecord()
if e != nil {
// ErrorPassAfter will wait, else break for next pass
if e.Error() == master.ErrPassBefore.Error() ||
e.Error() == master.ErrNoMoreAvailable.Error() {
break
}
t.Fatal(pass, taskid, "Read error:", e)
}
if len(r) != 1 {
t.Fatal(pass, taskid, "Length should be 1.", r)
}
if received[r[0]] {
t.Fatal(pass, taskid, "Received duplicate.", received, r)
}
taskid++
received[r[0]] = true
}
}
}()
}
wg.Wait()
}
go/master/etcd_client.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package master
import (
"context"
"time"
"github.com/coreos/etcd/clientv3"
"github.com/coreos/etcd/clientv3/concurrency"
log "github.com/inconshreveable/log15"
)
const (
// DefaultLockPath is the default etcd master lock path.
DefaultLockPath = "/master/lock"
// DefaultStatePath is the default etcd key for master state.
DefaultStatePath = "/master/state"
// DefaultAddrPath is the default etcd key for master address.
DefaultAddrPath = "/master/addr"
)
// EtcdClient is the etcd client that the master uses for fault
// tolerance and service registry.
type EtcdClient struct {
lockPath string
statePath string
client *clientv3.Client
lock *concurrency.Mutex
sess *concurrency.Session
}
// NewEtcdClient creates a new EtcdClient.
func NewEtcdClient(endpoints []string, addr string, lockPath, addrPath, statePath string, ttlSec int) (*EtcdClient, error) {
log.Debug("Connecting to etcd", log.Ctx{"endpoint": endpoints})
cli, err := clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: dialTimeout,
})
if err != nil {
return nil, err
}
sess, err := concurrency.NewSession(cli, concurrency.WithTTL(ttlSec))
if err != nil {
return nil, err
}
lock := concurrency.NewMutex(sess, lockPath)
// It's fine for the lock to get stuck, in this case we have
// multiple master servers running (only configured to have
// one master running, but split-brain problem may cause
// multiple master servers running), and the cluster management
// software will kill one of them.
log.Info("Trying to acquire lock.", log.Ctx{"path": lockPath})
err = lock.Lock(context.TODO())
if err != nil {
return nil, err
}
log.Info("Successfully acquired lock at %s.", log.Ctx{"path": lockPath})
put := clientv3.OpPut(addrPath, addr)
resp, err := cli.Txn(context.Background()).If(lock.IsOwner()).Then(put).Commit()
if err != nil {
return nil, err
}
if !resp.Succeeded {
log.Crit("No longer owns the master lock. Exiting.")
panic("No longer owns the master lock. Exiting.")
}
e := &EtcdClient{
lockPath: lockPath,
statePath: statePath,
client: cli,
lock: lock,
sess: sess,
}
return e, nil
}
// Save saves the state into the etcd.
func (e *EtcdClient) Save(state []byte) error {
ctx := context.TODO()
put := clientv3.OpPut(e.statePath, string(state))
resp, err := e.client.Txn(ctx).If(e.lock.IsOwner()).Then(put).Commit()
if err != nil {
return err
}
if !resp.Succeeded {
log.Error("No longer owns the lock, trying to lock again")
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
err := e.lock.Lock(ctx)
cancel()
if err != nil {
// We lost the master lock and can not acquire
// it back, it means some other master is
// already started. We don't want cluster
// management system to kill the master server
// who is holding the lock and running
// correctly. So the most feasible solution is
// to kill current master server. The current
// state is not saved, but the trainer's RPC
// call will fail, so the trainer will retry.
log.Crit("Could not acquire the lock at %s: %v. Exiting.", log.Ctx{"path": e.lockPath, "error": err})
panic("Could not acquire the lock at %s: %v. Exiting.")
}
log.Info("Successfully acquired lock at %s.", e.lockPath)
return e.Save(state)
}
return nil
}
// Load loads the state from etcd.
func (e *EtcdClient) Load() ([]byte, error) {
ctx := context.TODO()
get := clientv3.OpGet(e.statePath)
resp, err := e.client.Txn(ctx).If(e.lock.IsOwner()).Then(get).Commit()
if err != nil {
return nil, err
}
if !resp.Succeeded {
log.Error("No longer owns the lock, trying to lock and load again.")
err = e.lock.Lock(context.Background())
if err != nil {
return nil, err
}
return e.Load()
}
kvs := resp.Responses[0].GetResponseRange().Kvs
if len(kvs) == 0 {
// No state exists
return nil, nil
}
state := kvs[0].Value
return state, nil
}
// Shutdown shuts down the etcd client gracefully.
func (e *EtcdClient) Shutdown() error {
err := e.sess.Close()
newErr := e.client.Close()
if newErr != nil {
if err == nil {
err = newErr
} else {
log.Error("shutdown error", log.Ctx{"error": newErr})
}
}
return err
}
// GetKey gets the value by the specify key.
func GetKey(c *clientv3.Client, key string, timeout time.Duration) (string, error) {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
resp, err := c.Get(ctx, key)
cancel()
if err != nil {
return "", err
}
kvs := resp.Kvs
if len(kvs) == 0 {
return "", nil
}
v := kvs[0].Value
return string(v), nil
}
// watchKey watches the specify key and send to valChan if there is some event.
func watchKey(c *clientv3.Client, key string, valChan chan<- string) {
rch := c.Watch(context.Background(), key)
for wresp := range rch {
for _, ev := range wresp.Events {
// if received event is DELETE, the value will be an empty string
log.Info("received event.", log.Ctx{"type": ev.Type, "key": ev.Kv.Key, "value": ev.Kv.Value})
valChan <- string(ev.Kv.Value)
}
}
}
go/master/inmem_store.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package master
import "sync"
// InMemStore is an in memory implementation of Store interface.
//
// It does not tolerate the fault that causes the program to crash.
type InMemStore struct {
mu sync.Mutex
buf []byte
}
// Save saves the state into the in-memory store.
func (m *InMemStore) Save(state []byte) error {
m.mu.Lock()
defer m.mu.Unlock()
m.buf = state
return nil
}
// Load loads the state from the in-memory store.
func (m *InMemStore) Load() ([]byte, error) {
m.mu.Lock()
defer m.mu.Unlock()
return m.buf, nil
}
// Shutdown shuts down the in mem store.
func (m *InMemStore) Shutdown() error {
return nil
}
go/master/service.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package master
import (
"bytes"
"compress/gzip"
"encoding/gob"
"errors"
"math/rand"
"os"
"path/filepath"
"sync"
"time"
log "github.com/inconshreveable/log15"
"github.com/PaddlePaddle/recordio"
)
const (
dialTimeout = 5 * time.Second
)
// ErrAllTaskFailed occur when tasks are in done or failed state.
var ErrAllTaskFailed = errors.New("all task finished")
// ErrNoMoreAvailable occur when no task in todo and yet not all done or fail.
var ErrNoMoreAvailable = errors.New("no more available task")
// ErrPassBefore client side pass number does not match with master counter.
var ErrPassBefore = errors.New("pass number smaller than master")
// ErrPassAfter client side pass number does not match with master counter.
var ErrPassAfter = errors.New("pass number larger than master")
// Store is the interface for save and load the master state.
type Store interface {
Save([]byte) error
Load() ([]byte, error)
Shutdown() error
}
// Chunk is a chunk of data consisted of several data instances.
type Chunk struct {
Path string
Index recordio.Index // chunk index
}
// TaskMeta is a struct which stores task's meta info.
type TaskMeta struct {
ID int
Epoch int
}
// Task is the basic unit of data instances assigned to trainers.
type Task struct {
Meta TaskMeta
Chunks []Chunk
}
type taskEntry struct {
Task Task
// A task fails if it's timeout or trainer reports it exits unnormally.
NumFailure int
}
type masterState struct {
Todo []taskEntry
Pending map[int]taskEntry // map from task ID to task entry
Done []taskEntry
Failed []taskEntry
CurPass int
}
// Service is the master server service.
type Service struct {
chunksPerTask int
timeoutDur time.Duration
failureMax int
store Store
ready chan struct{}
initDone bool
mu sync.Mutex
// State to be persisted to snapshot.
state masterState
// The trainer that is currently saving model. This state is
// transient, does not need to be persisted to snapshot.
savingTrainer string
}
func partition(chunks []Chunk, chunksPerTask int) []taskEntry {
// generate uniq id across job using nanosecond + randint + counter
// FIXME(typhoonzero): this is a workaround, use uuid
randStart := rand.Int()
counter := 0
timestamp := time.Now().Nanosecond()
id := timestamp + randStart + counter
if chunksPerTask <= 0 {
chunksPerTask = 1
}
var result []taskEntry
var cur taskEntry
for i, c := range chunks {
if i%chunksPerTask == 0 && len(cur.Task.Chunks) > 0 {
cur.Task.Meta.ID = id
counter++
id = timestamp + randStart + counter
result = append(result, cur)
cur.Task.Chunks = nil
}
cur.Task.Chunks = append(cur.Task.Chunks, c)
}
if len(cur.Task.Chunks) > 0 {
cur.Task.Meta.ID = id
result = append(result, cur)
}
return result
}
// NewService creates a new service.
func NewService(store Store, chunksPerTask int, timeoutDur time.Duration, failureMax int) (*Service, error) {
s := &Service{}
s.chunksPerTask = chunksPerTask
s.timeoutDur = timeoutDur
s.failureMax = failureMax
s.state = masterState{}
s.state.Pending = make(map[int]taskEntry)
s.ready = make(chan struct{})
s.store = store
recovered, err := s.recover()
if err != nil {
return nil, err
}
if recovered {
// Recovered. Now the state is already initialized,
// and the master is ready.
s.initDone = true
close(s.ready)
log.Info("Master recovered from saved state.")
}
return s, nil
}
// recover recovers service state from etcd.
func (s *Service) recover() (bool, error) {
state, err := s.store.Load()
if err != nil {
return false, err
}
if state == nil {
log.Info("No state exists, not recovered.")
return false, nil
}
log.Info("Loaded snapshot.", log.Ctx{"size": len(state)})
gr, err := gzip.NewReader(bytes.NewReader(state))
if err != nil {
return false, err
}
dec := gob.NewDecoder(gr)
var tqs masterState
err = dec.Decode(&tqs)
if err != nil {
return false, err
}
err = gr.Close()
if err != nil {
// Only close failed, recover actually succeed, so
// just log error.
log.Error("error close recover file.", log.Ctx{"error": err})
}
s.state = tqs
log.Info("Master recovered from snapshot, scheduling pending task timeout check.", s.logCtx())
for _, t := range s.state.Pending {
time.AfterFunc(s.timeoutDur, s.checkTimeoutFunc(t.Task.Meta.ID, t.Task.Meta.Epoch))
}
return true, nil
}
// snapshot *must* be called with s.mu being held.
func (s *Service) snapshot() error {
// TODO(helin): etcd request has a size limit, so the snapshot
// size is limited by the max request size. We should either
// divide the snapshot into smaller chunks and save under
// different keys, or configure the request size to be big
// enough:
// https://github.com/coreos/etcd/blob/2f84f3d8d8ed8f9537ab6ffa44a3a1c7eddfa9b1/embed/config.go#L44
var buf bytes.Buffer
gw := gzip.NewWriter(&buf)
enc := gob.NewEncoder(gw)
err := enc.Encode(s.state)
if err != nil {
return err
}
err = gw.Close()
if err != nil {
return err
}
state := buf.Bytes()
log.Info("Saving snapshot.", log.Ctx{"size bytes": len(state)})
return s.store.Save(state)
}
func readChunks(globPaths []string) ([]Chunk, error) {
var chunks []Chunk
var paths []string
for _, s := range globPaths {
match, err := filepath.Glob(s)
if err != nil {
return nil, err
}
paths = append(paths, match...)
}
if len(paths) == 0 {
return nil, errors.New("no valid dataset specified")
}
for _, path := range paths {
f, err := os.Open(path)
if err != nil {
return nil, err
}
index, err := recordio.LoadIndex(f)
if err != nil {
return nil, err
}
err = f.Close()
if err != nil {
return nil, err
}
count := index.NumChunks()
log.Info("reading chunks.", log.Ctx{"path": path, "num chunks": count})
for i := 0; i < count; i++ {
chunk := Chunk{
Path: path,
Index: *index.ChunkIndex(i),
}
chunks = append(chunks, chunk)
}
}
return chunks, nil
}
// SetDataset sets dataset to dispatch for the master server.
//
// SetDataset can be call multiple times. But only the first call will
// be honored.
func (s *Service) SetDataset(globPaths []string, _ *int) error {
if len(globPaths) == 0 {
return errors.New("no dataset specified")
}
s.mu.Lock()
defer s.mu.Unlock()
if s.initDone {
// Already initialized. All trainer will call
// SetDataset, but we only handle the first one. Treat
// other calls as successful but do nothing.
return nil
}
chunks, err := readChunks(globPaths)
if err != nil {
return err
}
s.state.Todo = partition(chunks, s.chunksPerTask)
err = s.snapshot()
if err != nil {
log.Error("snapshot error", log.Ctx{"error": err})
return err
}
close(s.ready)
s.initDone = true
return nil
}
// processFailedTask retry s.failureMax times for failed task.
// return true if all task are done or failed.
func (s *Service) processFailedTask(t taskEntry, epoch int) {
if t.Task.Meta.Epoch != epoch {
// new epoch, task launched after the
// schedule of this timeout check or failed status report.
return
}
defer func() {
err := s.snapshot()
if err != nil {
log.Error("snapshot error", log.Ctx{"error": err})
}
}()
delete(s.state.Pending, t.Task.Meta.ID)
t.NumFailure++
if t.NumFailure > s.failureMax {
log.Warn("Task failed to many times, discard.", log.Ctx{"task": t.Task, "num failed": t.NumFailure})
s.state.Failed = append(s.state.Failed, t)
return
}
log.Warn("Task failed, re-dispatch.", log.Ctx{"task": t.Task, "num failed": t.NumFailure})
s.state.Todo = append(s.state.Todo, t)
return
}
func (s *Service) checkTimeoutFunc(taskID int, epoch int) func() {
return func() {
s.mu.Lock()
defer s.mu.Unlock()
t, ok := s.state.Pending[taskID]
if !ok {
return
}
s.processFailedTask(t, epoch)
}
}
// must be called with lock held.
func (s *Service) logCtx() log.Ctx {
return log.Ctx{
"todoLen": len(s.state.Todo),
"pendingLen": len(s.state.Pending),
"doneLen": len(s.state.Done),
"failedLen": len(s.state.Failed),
"curPass": s.state.CurPass,
}
}
// GetTask gets a new task from the service.
// passID is the client side pass count
func (s *Service) GetTask(passID int, task *Task) error {
select {
case <-s.ready:
}
s.mu.Lock()
defer s.mu.Unlock()
if passID < s.state.CurPass {
return ErrPassBefore
}
if passID > s.state.CurPass {
// Client may get run to pass after master when one client faster than the
// other
return ErrPassAfter
}
if len(s.state.Todo) == 0 {
if len(s.state.Done) == 0 && len(s.state.Pending) == 0 {
log.Warn("All tasks failed, may start next pass", s.logCtx())
return ErrAllTaskFailed
}
log.Warn("No more available task.", s.logCtx())
return ErrNoMoreAvailable
}
t := s.state.Todo[0]
t.Task.Meta.Epoch++
s.state.Todo = s.state.Todo[1:]
s.state.Pending[t.Task.Meta.ID] = t
err := s.snapshot()
if err != nil {
return err
}
*task = t.Task
ctx := s.logCtx()
ctx["task meta"] = t.Task.Meta
log.Info("Task dispatched.", ctx)
time.AfterFunc(s.timeoutDur, s.checkTimeoutFunc(t.Task.Meta.ID, t.Task.Meta.Epoch))
return nil
}
// TaskFinished tell the service that a task is finished.
func (s *Service) TaskFinished(taskID int, dummy *int) error {
select {
case <-s.ready:
}
s.mu.Lock()
defer s.mu.Unlock()
t, ok := s.state.Pending[taskID]
if !ok {
ctx := s.logCtx()
ctx["task id"] = taskID
log.Warn("Pending task not found.", ctx)
return nil
}
// task finished, reset timeout
t.NumFailure = 0
s.state.Done = append(s.state.Done, t)
delete(s.state.Pending, taskID)
ctx := s.logCtx()
ctx["task id"] = taskID
log.Info("Task finished.", ctx)
if len(s.state.Todo) == 0 && len(s.state.Pending) == 0 {
// increase master side pass count if all tasks finished
s.state.CurPass++
s.state.Todo = append(s.state.Done, s.state.Failed...)
s.state.Done = []taskEntry{}
// TODO(typhoonzero): deal with failed tasks
s.state.Failed = []taskEntry{}
ctx := s.logCtx()
ctx["new pass"] = s.state.CurPass
log.Warn("all task finished, add new pass data.", ctx)
}
err := s.snapshot()
if err != nil {
log.Error("snapshot error", log.Ctx{"error": err})
}
return err
}
// TaskFailed tells the service that a task is failed.
func (s *Service) TaskFailed(meta TaskMeta, dummy *int) error {
select {
case <-s.ready:
}
s.mu.Lock()
defer s.mu.Unlock()
t, ok := s.state.Pending[meta.ID]
if !ok {
log.Warn("TaskFailed:Pending task not found.", log.Ctx{"task": t.Task.Meta})
return nil
}
s.processFailedTask(t, meta.Epoch)
return nil
}
// SaveModelRequest is the request for saving model
type SaveModelRequest struct {
TrainerID string
BlockDur time.Duration
}
// RequestSaveModel requests the master server to approve the caller
// to save the model.
func (s *Service) RequestSaveModel(req SaveModelRequest, need *bool) error {
s.mu.Lock()
defer s.mu.Unlock()
if req.TrainerID == "" {
return errors.New("trainer id is empty")
}
if s.savingTrainer == "" {
*need = true
} else {
if req.TrainerID == s.savingTrainer {
// save trainer asked to save model again
*need = true
} else {
*need = false
}
}
if *need {
s.savingTrainer = req.TrainerID
time.AfterFunc(req.BlockDur, func() {
s.mu.Lock()
s.savingTrainer = ""
s.mu.Unlock()
})
}
return nil
}
go/master/service_internal_test.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package master
import "testing"
func TestPartitionCount(t *testing.T) {
cs := make([]Chunk, 100)
ts := partition(cs, 5)
if len(ts) != 20 {
t.Error(len(ts))
}
cs = make([]Chunk, 101)
ts = partition(cs, 5)
if len(ts) != 21 {
t.Error(len(ts))
}
ts = partition(cs, 1)
if len(ts) != 101 {
t.Error(len(ts))
}
ts = partition(cs, 0)
if len(ts) != 101 {
t.Error(len(ts))
}
}
func TestPartionIndex(t *testing.T) {
cs := make([]Chunk, 100)
ts := partition(cs, 20)
for i := range ts {
// test auto increament ids
if i > 0 && ts[i].Task.Meta.ID != ts[i-1].Task.Meta.ID+1 {
t.Error(ts[i], i)
}
}
}
go/master/service_test.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
package master_test
import (
"io/ioutil"
"net/url"
"os"
"strings"
"testing"
"time"
"github.com/PaddlePaddle/Paddle/go/master"
"github.com/coreos/etcd/clientv3"
"github.com/coreos/etcd/embed"
"github.com/stretchr/testify/assert"
)
func TestNewServiceWithEtcd(t *testing.T) {
// setup an embed etcd server
etcdDir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
cfg := embed.NewConfig()
lpurl, _ := url.Parse("http://localhost:0")
lcurl, _ := url.Parse("http://localhost:0")
cfg.LPUrls = []url.URL{*lpurl}
cfg.LCUrls = []url.URL{*lcurl}
cfg.Dir = etcdDir
e, err := embed.StartEtcd(cfg)
if err != nil {
t.Fatal(err)
}
defer func() {
e.Close()
if err := os.RemoveAll(etcdDir); err != nil {
t.Fatal(err)
}
}()
<-e.Server.ReadyNotify()
port := strings.Split(e.Clients[0].Addr().String(), ":")[1]
endpoint := "127.0.0.1:" + port
ep := []string{endpoint}
masterAddr := "127.0.0.1:3306"
store, err := master.NewEtcdClient(ep, masterAddr, master.DefaultLockPath, master.DefaultAddrPath, master.DefaultStatePath, 30)
if err != nil {
t.Fatal(err)
}
_, err = master.NewService(store, 10, 10, 3)
if err != nil {
t.Fatal(err)
}
cli, err := clientv3.New(clientv3.Config{
Endpoints: ep,
DialTimeout: 3 * time.Second,
})
if err != nil {
t.Fatal(err)
}
v, err := master.GetKey(cli, master.DefaultAddrPath, 3*time.Second)
if err != nil {
t.Fatal(err)
}
if err := cli.Close(); err != nil {
t.Fatal(err)
}
// test master process registry itself into etcd server.
assert.Equal(t, masterAddr, v, "master process should registry itself into etcd server.")
}
go/proto/.gitignore 已删除 100644 → 0
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# Ignore everything in this directory
*
# Except this file
!.gitignore
go/pserver/CMakeLists.txt 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
if(WITH_TESTING)
go_test(pserver_test DEPS paddle_go_optimizer gen_proto_go)
endif()
go/pserver/client/CMakeLists.txt 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
if(WITH_TESTING)
go_test(pserver_client_test DEPS paddle_go_optimizer)
endif()
go/pserver/client/c/CMakeLists.txt 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
cc_library(paddle_go_optimizer DEPS paddle_optimizer paddle_proto glog gflags protobuf)
target_link_libraries(paddle_go_optimizer stdc++ m)
# Copy library to the required place.
# See: go/pserver/optimizer.go:
# // #cgo LDFLAGS: ${SRCDIR}/client/c/libpaddle_go_optimizer.a -lstdc++ -lm
add_custom_command(TARGET paddle_go_optimizer POST_BUILD
COMMAND cp "${CMAKE_CURRENT_BINARY_DIR}/libpaddle_go_optimizer.a" "${CMAKE_CURRENT_SOURCE_DIR}"
)
go_library(paddle_pserver_cclient STATIC DEPS paddle_go_optimizer)
if(WITH_TESTING)
# FIXME: this test requires pserver which is not managed by the test
# we need some kind of e2e testing machanism.
# add_subdirectory(test)
endif()
go/pserver/client/c/cclient.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
/*
#include <string.h>
typedef enum {
PADDLE_ELEMENT_TYPE_INT32 = 0,
PADDLE_ELEMENT_TYPE_UINT32 = 1,
PADDLE_ELEMENT_TYPE_INT64 = 2,
PADDLE_ELEMENT_TYPE_UINT64 = 3,
PADDLE_ELEMENT_TYPE_FLOAT32 = 4,
PADDLE_ELEMENT_TYPE_FLOAT64 = 5,
} paddle_element_type;
typedef struct {
char* name;
paddle_element_type element_type;
unsigned char* content;
int content_len;
} paddle_parameter, paddle_gradient;
typedef int paddle_pserver_client;
#define PSERVER_ERROR -1
#define PSERVER_OK 0
*/
import "C"
import (
"strings"
"sync"
"unsafe"
"github.com/PaddlePaddle/Paddle/go/pserver"
"github.com/PaddlePaddle/Paddle/go/pserver/client"
log "github.com/inconshreveable/log15"
)
func init() {
log.Root().SetHandler(
log.LvlFilterHandler(log.LvlWarn, log.CallerStackHandler("%+v", log.StderrHandler)),
)
}
var mu sync.Mutex
var handleMap = make(map[C.paddle_pserver_client]*client.Client)
var curHandle C.paddle_pserver_client
func add(c *client.Client) C.paddle_pserver_client {
mu.Lock()
defer mu.Unlock()
cli := curHandle
curHandle++
handleMap[cli] = c
return cli
}
func get(client C.paddle_pserver_client) *client.Client {
mu.Lock()
defer mu.Unlock()
return handleMap[client]
}
func remove(client C.paddle_pserver_client) *client.Client {
mu.Lock()
defer mu.Unlock()
h := handleMap[client]
delete(handleMap, client)
return h
}
func cArrayToSlice(p unsafe.Pointer, len int) []byte {
if p == nil {
return nil
}
// create a Go clice backed by a C array, reference:
// https://github.com/golang/go/wiki/cgo#turning-c-arrays-into-go-slices
//
// Go garbage collector will not interact with this data, need
// to be freed properly.
return (*[1 << 30]byte)(p)[:len:len]
}
type selector bool
func (s selector) Select() (bool, error) {
return bool(s), nil
}
func (s selector) Done() error {
return nil
}
type lister []client.Server
func (l lister) List() []client.Server {
return l
}
//export paddle_new_pserver_client
func paddle_new_pserver_client(addrs *C.char, selected int) C.paddle_pserver_client {
a := C.GoString(addrs)
as := strings.Split(a, ",")
servers := make([]client.Server, len(as))
for i := range as {
servers[i].Index = i
servers[i].Addr = as[i]
}
c := client.NewClient(lister(servers), len(as), selector(selected != 0))
return add(c)
}
//export paddle_new_etcd_pserver_client
func paddle_new_etcd_pserver_client(etcdEndpoints *C.char) C.paddle_pserver_client {
addr := C.GoString(etcdEndpoints)
etcdClient := client.NewEtcd(addr)
c := client.NewClient(etcdClient, etcdClient.Desired(), etcdClient)
return add(c)
}
//export paddle_pserver_client_release
func paddle_pserver_client_release(client C.paddle_pserver_client) {
remove(client)
}
// paddle_begin_init_params tells trainer if it needs to init the
// parameters.
//
// returns 1 if the trainer needs to init the parameters. 0 if the
// trainer does not need to init the parameters.
//
//export paddle_begin_init_params
func paddle_begin_init_params(client C.paddle_pserver_client) C.int {
c := get(client)
selected, err := c.BeginInitParams()
if err != nil {
panic(err)
}
if selected {
return 1
}
return 0
}
//export paddle_init_param
func paddle_init_param(client C.paddle_pserver_client, param C.paddle_parameter, paramConfig unsafe.Pointer, configLen C.int) C.int {
et := pserver.ElementType(param.element_type)
name := C.GoString(param.name)
content := cArrayToSlice(unsafe.Pointer(param.content), int(param.content_len))
pc := pserver.ParameterWithConfig{
Param: pserver.Parameter{Name: name, ElementType: et, Content: content},
Config: cArrayToSlice(paramConfig, int(configLen)),
}
c := get(client)
err := c.InitParam(pc)
if err != nil {
if err.Error() == pserver.AlreadyInitialized {
log.Warn(
"parameter already initialized, treat paddle_init_param as successful.",
log.Ctx{"parameter": name},
)
return C.PSERVER_OK
}
log.Error("error init param", log.Ctx{"error": err})
return C.PSERVER_ERROR
}
return C.PSERVER_OK
}
//export paddle_finish_init_params
func paddle_finish_init_params(client C.paddle_pserver_client) C.int {
c := get(client)
err := c.FinishInitParams()
if err != nil {
if err.Error() == pserver.AlreadyInitialized {
log.Warn("parameters already initialized, treat paddle_finish_init_params as successful.")
return C.PSERVER_OK
}
log.Error("error finish init params", log.Ctx{"error": err})
return C.PSERVER_ERROR
}
return C.PSERVER_OK
}
//export paddle_send_grads
func paddle_send_grads(client C.paddle_pserver_client, grads **C.paddle_gradient, total C.int) C.int {
var gs []pserver.Gradient
for i := 0; i < int(total); i++ {
grad := *(**C.paddle_gradient)(unsafe.Pointer((uintptr(unsafe.Pointer(grads)) + uintptr(i)*unsafe.Sizeof(*grads))))
et := pserver.ElementType(grad.element_type)
name := C.GoString(grad.name)
content := cArrayToSlice(unsafe.Pointer(grad.content), int(grad.content_len))
gs = append(gs, pserver.Gradient{Name: name, ElementType: et, Content: content})
}
c := get(client)
err := c.SendGrads(gs)
if err != nil {
log.Error("error send grads", log.Ctx{"error": err})
return C.PSERVER_ERROR
}
return C.PSERVER_OK
}
//export paddle_get_params
func paddle_get_params(client C.paddle_pserver_client, dst **C.paddle_parameter, total C.int) C.int {
var ns []string
for i := 0; i < int(total); i++ {
param := *(**C.paddle_parameter)(unsafe.Pointer((uintptr(unsafe.Pointer(dst)) + uintptr(i)*unsafe.Sizeof(*dst))))
ns = append(ns, C.GoString(param.name))
}
c := get(client)
ps, err := c.GetParams(ns)
if err != nil {
log.Error("error get params", log.Ctx{"error": err})
return C.PSERVER_ERROR
}
if len(ps) != len(ns) {
pn := make([]string, len(ps))
for i, p := range ps {
pn[i] = p.Name
}
log.Error(
"pserver returned wrong number of parameters.",
log.Ctx{
"Requested": strings.Join(pn, ", "),
"Returned": strings.Join(ns, ", "),
},
)
return C.PSERVER_ERROR
}
for i := range ps {
if ns[i] != ps[i].Name {
pn := make([]string, len(ps))
for i, p := range ps {
pn[i] = p.Name
}
log.Error(
"pserver returned wrong parameters, or not in requested order.",
log.Ctx{
"Requested": strings.Join(pn, ", "),
"Returned": strings.Join(ns, ", "),
},
)
return C.PSERVER_ERROR
}
}
for i := 0; i < int(total); i++ {
p := ps[i]
param := *(**C.paddle_parameter)(unsafe.Pointer((uintptr(unsafe.Pointer(dst)) + uintptr(i)*unsafe.Sizeof(*dst))))
if unsafe.Pointer(param) == nil {
log.Error("must pre-allocate parameter.")
return C.PSERVER_ERROR
}
if unsafe.Pointer(param.content) != nil {
if int(param.content_len) != len(p.Content) {
log.Error(
"the pre-allocated content len does not match parameter content len.",
log.Ctx{
"Pre-allocated len": param.content_len,
"Returned len": len(p.Content),
},
)
return C.PSERVER_ERROR
}
}
C.memcpy(unsafe.Pointer(param.content), unsafe.Pointer(&p.Content[0]), C.size_t(len(p.Content)))
param.content_len = C.int(len(p.Content))
param.element_type = C.paddle_element_type(p.ElementType)
}
return C.PSERVER_OK
}
func main() {} // Required but ignored
go/pserver/client/c/test/CMakeLists.txt 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
cc_test(test_cclient SRCS test_cclient.c DEPS paddle_pserver_cclient paddle_go_optimizer)
go/pserver/client/c/test/test_cclient.c 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. */
#include <stdio.h>
#include <stdlib.h>
#include "libpaddle_pserver_cclient.h"
// TODO(helin): Fix: gtest using cmake is not working, using this
// hacky way for now.
#define fail() \
fprintf(stderr, "info: %s:%d: ", __FILE__, __LINE__); \
exit(-1);
void sendGrads(paddle_pserver_client c) {
unsigned char grad_a[2000] = {2};
unsigned char grad_b[3000] = {3};
paddle_gradient grad1 = {
"param_a", PADDLE_ELEMENT_TYPE_FLOAT32, grad_a, 2000};
paddle_gradient grad2 = {
"param_b", PADDLE_ELEMENT_TYPE_FLOAT32, grad_b, 3000};
paddle_gradient *grads[2] = {&grad1, &grad2};
if (paddle_send_grads(c, grads, 2)) {
fail();
}
}
void getParams(paddle_pserver_client c) {
paddle_parameter param_a;
paddle_parameter param_b;
char name_a[] = "param_a";
char name_b[] = "param_b";
// Must pre-allocate the prameter content before calling paddle_get_params.
unsigned char content_a[2000] = {};
unsigned char content_b[3000] = {};
param_a.element_type = PADDLE_ELEMENT_TYPE_FLOAT32;
param_a.name = name_a;
param_a.content = content_a;
param_a.content_len = 2000;
param_b.element_type = PADDLE_ELEMENT_TYPE_FLOAT32;
param_b.name = name_b;
param_b.content = content_b;
param_b.content_len = 3000;
paddle_parameter *params[2] = {&param_a, &param_b};
if (paddle_get_params(c, params, 2)) {
fail();
}
}
int main() {
char addr[] = "localhost:3000";
paddle_pserver_client c = paddle_new_pserver_client(addr, 1);
char *config_proto;
size_t config_proto_len = 0;
ssize_t nread;
FILE *fp = fopen("testdata/optimizer.pb", "r");
if (!fp) {
fail();
}
while ((nread = getline(&config_proto, &config_proto_len, fp)) != -1) {
printf("%s", config_proto);
}
fclose(fp);
retry:
if (paddle_begin_init_params(c)) {
paddle_parameter param;
char name_a[] = "param_a";
char name_b[] = "param_b";
unsigned char content_a[2000] = {1};
unsigned char content_b[3000] = {0};
param.element_type = PADDLE_ELEMENT_TYPE_FLOAT32;
param.name = name_a;
param.content = content_a;
param.content_len = 2000;
int error =
paddle_init_param(c, param, (void *)config_proto, config_proto_len);
if (error != 0) {
goto retry;
}
param.element_type = PADDLE_ELEMENT_TYPE_FLOAT32;
param.name = name_b;
param.content = content_b;
param.content_len = 3000;
error = paddle_init_param(c, param, (void *)config_proto, config_proto_len);
if (error != 0) {
goto retry;
}
error = paddle_finish_init_params(c);
if (error != 0) {
goto retry;
}
}
int i;
for (i = 0; i < 100; i++) {
sendGrads(c);
getParams(c);
}
return 0;
}
go/pserver/client/c/test/test_mnist.py 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import paddle.v2 as paddle
import gzip
def softmax_regression(img):
predict = paddle.layer.fc(input=img,
size=10,
act=paddle.activation.Softmax())
return predict
def multilayer_perceptron(img):
# The first fully-connected layer
hidden1 = paddle.layer.fc(input=img, size=128, act=paddle.activation.Relu())
# The second fully-connected layer and the according activation function
hidden2 = paddle.layer.fc(input=hidden1,
size=64,
act=paddle.activation.Relu())
# The thrid fully-connected layer, note that the hidden size should be 10,
# which is the number of unique digits
predict = paddle.layer.fc(input=hidden2,
size=10,
act=paddle.activation.Softmax())
return predict
def convolutional_neural_network(img):
# first conv layer
conv_pool_1 = paddle.networks.simple_img_conv_pool(
input=img,
filter_size=5,
num_filters=20,
num_channel=1,
pool_size=2,
pool_stride=2,
act=paddle.activation.Tanh())
# second conv layer
conv_pool_2 = paddle.networks.simple_img_conv_pool(
input=conv_pool_1,
filter_size=5,
num_filters=50,
num_channel=20,
pool_size=2,
pool_stride=2,
act=paddle.activation.Tanh())
# The first fully-connected layer
fc1 = paddle.layer.fc(input=conv_pool_2,
size=128,
act=paddle.activation.Tanh())
# The softmax layer, note that the hidden size should be 10,
# which is the number of unique digits
predict = paddle.layer.fc(input=fc1,
size=10,
act=paddle.activation.Softmax())
return predict
def main():
paddle.init(use_gpu=False, trainer_count=1)
# define network topology
images = paddle.layer.data(
name='pixel', type=paddle.data_type.dense_vector(784))
label = paddle.layer.data(
name='label', type=paddle.data_type.integer_value(10))
# Here we can build the prediction network in different ways. Please
# choose one by uncomment corresponding line.
predict = softmax_regression(images)
#predict = multilayer_perceptron(images)
#predict = convolutional_neural_network(images)
cost = paddle.layer.classification_cost(input=predict, label=label)
parameters = paddle.parameters.create(cost)
optimizer = paddle.optimizer.Momentum(
learning_rate=0.1 / 128.0,
momentum=0.9,
regularization=paddle.optimizer.L2Regularization(rate=0.0005 * 128))
trainer = paddle.trainer.SGD(cost=cost,
parameters=parameters,
update_equation=optimizer,
is_local=False,
pserver_spec="localhost:3000")
lists = []
def event_handler(event):
if isinstance(event, paddle.event.EndIteration):
if event.batch_id % 1000 == 0:
print "Pass %d, Batch %d, Cost %f, %s" % (
event.pass_id, event.batch_id, event.cost, event.metrics)
elif isinstance(event, paddle.event.EndPass):
result = trainer.test(reader=paddle.batch(
paddle.dataset.mnist.test(), batch_size=128))
print "Test with Pass %d, Cost %f, %s\n" % (
event.pass_id, result.cost, result.metrics)
lists.append((event.pass_id, result.cost,
result.metrics['classification_error_evaluator']))
trainer.train(
reader=paddle.batch(
paddle.reader.shuffle(
paddle.dataset.mnist.train(), buf_size=8192),
batch_size=128),
event_handler=event_handler,
num_passes=100)
# find the best pass
best = sorted(lists, key=lambda list: float(list[1]))[0]
print 'Best pass is %s, testing Avgcost is %s' % (best[0], best[1])
print 'The classification accuracy is %.2f%%' % (100 - float(best[2]) * 100)
test_creator = paddle.dataset.mnist.test()
test_data = []
for item in test_creator():
test_data.append((item[0], ))
if len(test_data) == 100:
break
# output is a softmax layer. It returns probabilities.
# Shape should be (100, 10)
probs = paddle.infer(
output_layer=predict, parameters=parameters, input=test_data)
print probs.shape
if __name__ == '__main__':
main()
go/pserver/client/c/test/test_train.py 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import paddle.v2 as paddle
import paddle.v2.dataset.uci_housing as uci_housing
import paddle.v2.master as master
import os
import cPickle as pickle
from paddle.v2.reader.creator import cloud_reader
etcd_ip = os.getenv("MASTER_IP", "127.0.0.1")
etcd_endpoints = "http://" + etcd_ip + ":2379"
print "etcd endpoints: ", etcd_endpoints
def main():
# init
paddle.init(use_gpu=False, trainer_count=1)
# network config
x = paddle.layer.data(name='x', type=paddle.data_type.dense_vector(13))
y_predict = paddle.layer.fc(input=x,
param_attr=paddle.attr.Param(name='w'),
size=1,
act=paddle.activation.Linear(),
bias_attr=paddle.attr.Param(name='b'))
y = paddle.layer.data(name='y', type=paddle.data_type.dense_vector(1))
cost = paddle.layer.mse_cost(input=y_predict, label=y)
# create parameters
parameters = paddle.parameters.create(cost)
# create optimizer of new remote updater to pserver
optimizer = paddle.optimizer.Momentum(momentum=0, learning_rate=1e-3)
trainer = paddle.trainer.SGD(cost=cost,
parameters=parameters,
update_equation=optimizer,
is_local=False,
pserver_spec=etcd_endpoints,
use_etcd=True)
# event_handler to print training and testing info
def event_handler(event):
if isinstance(event, paddle.event.EndIteration):
# FIXME: for cloud data reader, pass number is managed by master
# should print the server side pass number
if event.batch_id % 100 == 0:
print "Pass %d, Batch %d, Cost %f" % (
event.pass_id, event.batch_id, event.cost)
if isinstance(event, paddle.event.EndPass):
if (event.pass_id + 1) % 10 == 0:
result = trainer.test(
reader=paddle.batch(
uci_housing.test(), batch_size=2),
feeding={'x': 0,
'y': 1})
print "Test %d, %.2f" % (event.pass_id, result.cost)
# training
# NOTE: use uci_housing.train() as reader for non-paddlecloud training
trainer.train(
reader=paddle.batch(
paddle.reader.shuffle(
cloud_reader(
["/pfs/dlnel/public/dataset/uci_housing/uci_housing*"],
etcd_endpoints),
buf_size=500),
batch_size=2),
feeding={'x': 0,
'y': 1},
event_handler=event_handler,
num_passes=30)
if __name__ == '__main__':
main()
go/pserver/client/client.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"errors"
"hash/fnv"
"sort"
"time"
"github.com/PaddlePaddle/Paddle/go/connection"
"github.com/PaddlePaddle/Paddle/go/pserver"
log "github.com/inconshreveable/log15"
)
// TODO(helin): add RPC call retry logic
// Selector selects if the client should initialize parameters and
// reports the initialization process done.
type Selector interface {
// Select selects if the client should initialize parameter servers.
Select() (bool, error)
// Done indicates the initialization process is done.
Done() error
}
// Server is the identification of a parameter Server.
type Server struct {
Index int
Addr string
}
// Lister lists currently available parameter servers.
type Lister interface {
List() []Server
}
// Client is the client to parameter servers.
type Client struct {
sel Selector
pservers []*connection.Conn
}
// NewClient creates a new client.
func NewClient(l Lister, pserverNum int, sel Selector) *Client {
c := &Client{sel: sel}
c.pservers = make([]*connection.Conn, pserverNum)
for i := 0; i < pserverNum; i++ {
c.pservers[i] = connection.New()
}
go c.monitorPservers(l, pserverNum)
return c
}
// monitorPservers monitors pserver addresses, and updates connection
// when the address changes.
func (c *Client) monitorPservers(l Lister, pserverNum int) {
lastServers := make([]Server, pserverNum)
ticker := time.NewTicker(10 * time.Second)
monitor := func() {
curServers := make([]Server, pserverNum)
list := l.List()
for _, l := range list {
curServers[l.Index] = l
}
for i := range lastServers {
if lastServers[i].Addr == curServers[i].Addr {
continue
}
if curServers[i].Addr == "" {
err := c.pservers[i].Close()
if err != nil {
log.Error("error closing connection to pserver", log.Ctx{"error": err})
}
continue
}
err := c.pservers[i].Connect(curServers[i].Addr)
if err != nil {
log.Error("error connecting to pserver", log.Ctx{"error": err})
// connect to addr failed, set
// to last known addr in order
// to retry next time.
curServers[i].Addr = lastServers[i].Addr
}
}
lastServers = curServers
}
monitor()
for range ticker.C {
monitor()
}
}
// BeginInitParams begins to initialize parameters on parameter
// servers.
//
// BeginInitParams will be called from multiple trainers, only one
// trainer will be selected to initialize the parameters on parameter
// servers. Other trainers will be blocked until the initialization is
// done, and they need to get the initialized parameters from
// parameter servers using GetParams.
func (c *Client) BeginInitParams() (bool, error) {
return c.sel.Select()
}
// InitParam initializes the parameter on parameter servers.
func (c *Client) InitParam(paramWithConfigs pserver.ParameterWithConfig) error {
return c.pservers[c.partition(paramWithConfigs.Param.Name)].Call("Service.InitParam", paramWithConfigs, nil)
}
// FinishInitParams tells parameter servers client has sent all
// parameters to parameter servers as initialization.
func (c *Client) FinishInitParams() error {
for _, p := range c.pservers {
err := p.Call("Service.FinishInitParams", 0, nil)
if err != nil {
return err
}
}
return c.sel.Done()
}
// SendGrads sends gradients to parameter servers for updating
// parameters.
func (c *Client) SendGrads(grads []pserver.Gradient) error {
if len(grads) == 0 {
return errors.New("no gradient received")
}
errCh := make(chan error, len(grads))
for _, g := range grads {
go func(g pserver.Gradient) {
err := c.pservers[c.partition(g.Name)].Call("Service.SendGrad", g, nil)
errCh <- err
}(g)
}
recv := 0
for err := range errCh {
if err != nil {
return err
}
recv++
if recv == len(grads) {
break
}
}
return nil
}
type result struct {
idx int
param pserver.Parameter
err error
}
type results []result
func (r results) Len() int {
return len(r)
}
func (r results) Less(i int, j int) bool {
return r[i].idx < r[j].idx
}
func (r results) Swap(i int, j int) {
r[i], r[j] = r[j], r[i]
}
// GetParams gets parameters from parameter servers.
func (c *Client) GetParams(names []string) ([]pserver.Parameter, error) {
rCh := make(chan result, len(names))
for idx, name := range names {
go func(name string, idx int) {
var parameter pserver.Parameter
err := c.pservers[c.partition(name)].Call("Service.GetParam", name, &parameter)
rCh <- result{idx: idx, param: parameter, err: err}
}(name, idx)
}
var rs results
recv := 0
for r := range rCh {
if r.err != nil {
return nil, r.err
}
rs = append(rs, r)
recv++
if recv == len(names) {
break
}
}
sort.Sort(rs)
ps := make([]pserver.Parameter, len(rs))
for i := range rs {
ps[i] = rs[i].param
}
return ps, nil
}
func strHash(s string) uint32 {
h := fnv.New32a()
_, _ = h.Write([]byte(s))
return h.Sum32()
}
// TODO(helin): now partition only select which parameter server to
// send the entire parameter. We need to partition a parameter into
// small blocks and send to different parameter servers.
func (c *Client) partition(key string) int {
return int(strHash(key) % uint32(len(c.pservers)))
}
go/pserver/client/client_test.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client_test
import (
"context"
"io/ioutil"
"math/rand"
"net"
"net/http"
"net/rpc"
"strconv"
"strings"
"sync"
"testing"
"time"
"github.com/PaddlePaddle/Paddle/go/pserver"
"github.com/PaddlePaddle/Paddle/go/pserver/client"
"github.com/coreos/etcd/clientv3"
log "github.com/inconshreveable/log15"
)
const (
numPserver = 10
etcdEndpoints = "127.0.0.1:2379"
timeout = 2 * time.Second
)
var pserverClientPorts [numPserver]int
// this function init pserver client and return their ports in an array.
func initClient() [numPserver]int {
var ports [numPserver]int
for i := 0; i < numPserver; i++ {
l, err := net.Listen("tcp", ":0")
if err != nil {
panic(err)
}
ss := strings.Split(l.Addr().String(), ":")
p, err := strconv.Atoi(ss[len(ss)-1])
if err != nil {
panic(err)
}
ports[i] = p
go func(l net.Listener) {
var cp pserver.Checkpoint
s, err := pserver.NewService(0, time.Hour, "", nil, cp)
if err != nil {
panic(err)
}
server := rpc.NewServer()
err = server.Register(s)
if err != nil {
panic(err)
}
mux := http.NewServeMux()
mux.Handle(rpc.DefaultRPCPath, server)
err = http.Serve(l, mux)
if err != nil {
panic(err)
}
}(l)
}
return ports
}
func initNativeClient() {
pserverClientPorts = initClient()
}
func initEtcdClient() {
client, err := clientv3.New(clientv3.Config{
Endpoints: []string{etcdEndpoints},
DialTimeout: time.Second * time.Duration(1),
})
if err != nil {
log.Error("error init etcd client", log.Ctx{"error": err})
}
ctx, cancel := context.WithTimeout(context.Background(), timeout)
_, err = client.Delete(ctx, pserver.PsDesired)
if err != nil {
panic(err)
}
_, err = client.Delete(ctx, pserver.PsPath)
if err != nil {
panic(err)
}
_, err = client.Put(ctx, pserver.PsDesired, strconv.Itoa(numPserver))
if err != nil {
panic(err)
}
ports := initClient()
for i := 0; i < numPserver; i++ {
_, err = client.Put(ctx, pserver.PsPath+strconv.Itoa(i), ":"+strconv.Itoa(ports[i]))
if err != nil {
panic(err)
}
}
cancel()
err = client.Close()
if err != nil {
panic(err)
}
}
type selector bool
func (s selector) Select() (bool, error) {
return bool(s), nil
}
func (s selector) Done() error {
return nil
}
type lister []client.Server
func (l lister) List() []client.Server {
return l
}
func testClient(t *testing.T, c *client.Client) {
selected, err := c.BeginInitParams()
if err != nil {
t.Fatal(err)
}
if !selected {
t.Fatal("should be selected.")
}
const numParameter = 1000
config, err := ioutil.ReadFile("./c/test/testdata/optimizer.pb")
if err != nil {
t.Fatalf("read optimizer proto failed")
}
var wg sync.WaitGroup
for i := 0; i < numParameter; i++ {
wg.Add(1)
go func(i int) {
var p pserver.Parameter
p.Name = "p_" + strconv.Itoa(i)
p.ElementType = pserver.Float32
p.Content = make([]byte, (i+1)*100)
err := c.InitParam(pserver.ParameterWithConfig{Param: p, Config: config})
if err != nil {
t.Fatal(err)
}
wg.Done()
}(i)
}
wg.Wait()
err = c.FinishInitParams()
if err != nil {
t.Fatal(err)
}
var grads []pserver.Gradient
for i := 0; i < numParameter; i++ {
var g pserver.Gradient
g.Name = "p_" + strconv.Itoa(i)
g.ElementType = pserver.Float32
g.Content = make([]byte, (i+1)*100)
grads = append(grads, g)
}
const paramPerGroup = 10
const numGroups = numParameter / paramPerGroup
// shuffle send grads order
for i := range grads {
j := rand.Intn(i + 1)
grads[i], grads[j] = grads[j], grads[i]
}
for i := 0; i < numGroups; i++ {
var gs []pserver.Gradient
if i == numGroups-1 {
gs = grads[i*paramPerGroup:]
} else {
gs = grads[i*paramPerGroup : (i+1)*paramPerGroup]
}
wg.Add(1)
go func(gs []pserver.Gradient) {
err := c.SendGrads(gs)
if err != nil {
t.Fatal(err)
}
wg.Done()
}(gs)
}
names := make([]string, numParameter)
for i := 0; i < numParameter; i++ {
names[i] = "p_" + strconv.Itoa(i)
}
for i := 0; i < numGroups; i++ {
var ns []string
if i == numGroups-1 {
ns = names[i*paramPerGroup:]
} else {
ns = names[i*paramPerGroup : (i+1)*paramPerGroup]
}
wg.Add(1)
go func(ns []string) {
params, err := c.GetParams(ns)
if err != nil {
t.Fatal(err)
}
if len(ns) != len(params) {
t.Fatalf("parameter size not match, need: %d, have: %d", len(names), len(params))
}
for i := range params {
if ns[i] != params[i].Name {
t.Fatalf("order of returned parameter does not required: parameter name: %s, required name: %s", ns[i], params[i].Name)
}
}
wg.Done()
}(ns)
}
wg.Wait()
}
func TestNativeClient(t *testing.T) {
initNativeClient()
servers := make([]client.Server, numPserver)
for i := 0; i < numPserver; i++ {
servers[i] = client.Server{Index: i, Addr: ":" + strconv.Itoa(pserverClientPorts[i])}
}
c1 := client.NewClient(lister(servers), len(servers), selector(true))
testClient(t, c1)
}
// EtcdClient is a disabled test, since we have not embedded etcd into
// our test.
func EtcdClient(t *testing.T) {
initEtcdClient()
etcdClient := client.NewEtcd(etcdEndpoints)
c2 := client.NewClient(etcdClient, etcdClient.Desired(), selector(true))
testClient(t, c2)
}
go/pserver/client/etcd_client.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"context"
"errors"
"fmt"
"strconv"
"strings"
"time"
"github.com/PaddlePaddle/Paddle/go/pserver"
"github.com/coreos/etcd/clientv3"
"github.com/coreos/etcd/clientv3/concurrency"
log "github.com/inconshreveable/log15"
)
const (
defaultEtcdTimeout time.Duration = 5 * time.Second
initLockPath = "/init_ps/lock"
initDonePath = "/init_ps/done"
initDoneVal = "1"
)
// Etcd is used by pserver client that is a part of trainer process.
// TODO:
// 1. add watcher to watch the change state of pservers.
type Etcd struct {
client *clientv3.Client
timeout time.Duration
endpoints []string
lock *concurrency.Mutex
}
// Desired read ps desired number from etcd.
func (e *Etcd) Desired() int {
var psDesired int
for {
ctx, cancel := context.WithTimeout(context.Background(), e.timeout)
resp, err := e.client.Get(ctx, pserver.PsDesired)
cancel()
if err != nil {
log.Error(
"Get ps dresire number failed! reconnecting...",
log.Ctx{"error": err},
)
time.Sleep(e.timeout)
continue
}
kvs := resp.Kvs
if len(kvs) == 0 {
log.Info("Waiting for ps desired registered ...")
time.Sleep(e.timeout)
continue
}
psDesired, err = strconv.Atoi(string(resp.Kvs[0].Value))
if err != nil {
log.Error("atoi failed", log.Ctx{"error": err})
time.Sleep(e.timeout)
continue
}
log.Debug("Got psDesired", log.Ctx{"psDesired": psDesired})
break
}
return psDesired
}
// List return the pserver list read from etcd.
func (e *Etcd) List() []Server {
psDesired := e.Desired()
servers := make([]Server, psDesired)
for {
for i := 0; i < psDesired; i++ {
ctx, cancel := context.WithTimeout(context.Background(), e.timeout)
psKey := pserver.PsPath + strconv.Itoa(i)
log.Debug("looking for pserver", log.Ctx{"ps key": psKey})
resp, err := e.client.Get(ctx, psKey)
cancel()
if err != nil {
log.Info(
"Get psKey error",
log.Ctx{"ps key": psKey, "error": err},
)
time.Sleep(e.timeout)
continue
}
kvs := resp.Kvs
if len(kvs) == 0 {
log.Info("Waiting for ps addr registered ...")
time.Sleep(e.timeout)
continue
}
psAddr := string(resp.Kvs[0].Value)
// TODO(Longfei) check the ps address
if psAddr == "" {
log.Info(
"Value under psKey is empty",
log.Ctx{"psKey": psKey},
)
time.Sleep(e.timeout)
continue
}
log.Debug(
"got psAddr given psKey",
log.Ctx{"psAddr": psAddr, "psKey": psKey},
)
servers[i].Index = i
servers[i].Addr = psAddr
}
break
}
return servers
}
// NewEtcd create a etcd client to return the state of pserver on etcd.
func NewEtcd(endpoints string) *Etcd {
ep := strings.Split(endpoints, ",")
var cli *clientv3.Client
var err error
for {
cli, err = clientv3.New(clientv3.Config{
Endpoints: ep,
DialTimeout: defaultEtcdTimeout,
})
if err != nil {
log.Error("Init etcd connection failed", log.Ctx{"error": err})
time.Sleep(defaultEtcdTimeout)
continue
}
break
}
log.Info("Connected to etcd endpoint", log.Ctx{"endpoint": endpoints})
client := &Etcd{
client: cli,
timeout: defaultEtcdTimeout,
endpoints: ep,
}
return client
}
// Select indicates if the current trainer is selected to initialize
// the pserver parameters.
func (e *Etcd) Select() (bool, error) {
sess, err := concurrency.NewSession(e.client, concurrency.WithTTL(5))
if err != nil {
return false, err
}
lock := concurrency.NewMutex(sess, initLockPath)
log.Info("Trying to acquire lock", log.Ctx{"lock path": initLockPath})
// Do not use timeout context here, since we don't know how
// long does it take for other trainers to initialize the
// parameters.
err = lock.Lock(context.Background())
if err != nil {
return false, err
}
log.Info("Successfully acquired lock", log.Ctx{"lock path": initLockPath})
get := clientv3.OpGet(initDonePath)
ctx, cancel := context.WithTimeout(context.Background(), e.timeout)
tresp, err := e.client.Txn(ctx).If(lock.IsOwner()).Then(get).Commit()
cancel()
if err != nil {
return false, err
}
if !tresp.Succeeded {
return false, errors.New("no longer the owner of the lock")
}
resp := tresp.Responses[0].GetResponseRange()
if len(resp.Kvs) == 0 {
// Key value not set, select current trainer.
e.lock = lock
log.Info("Trainer selected.")
return true, nil
}
if string(resp.Kvs[0].Value) == initDoneVal {
log.Info("Initialization is already done.")
ctx, cancel = context.WithTimeout(context.Background(), e.timeout)
err = lock.Unlock(ctx)
cancel()
if err != nil {
log.Error("error unlocking", log.Ctx{"error": err})
}
return false, nil
}
return false, fmt.Errorf("key %s have unexpected value: %v", initDonePath, resp.Kvs[0].Value)
}
// Done indicates the parameter initialization process is done.
func (e *Etcd) Done() error {
if e.lock == nil {
return errors.New("lock is nil, Done called unexpectedly")
}
put := clientv3.OpPut(initDonePath, initDoneVal)
ctx, cancel := context.WithTimeout(context.Background(), e.timeout)
tresp, err := e.client.Txn(ctx).If(e.lock.IsOwner()).Then(put).Commit()
cancel()
if err != nil {
return err
}
if !tresp.Succeeded {
return errors.New("no longer the owner of the lock")
}
ctx, cancel = context.WithTimeout(context.Background(), e.timeout)
err = e.lock.Unlock(ctx)
cancel()
if err != nil {
log.Error("error unlocking", log.Ctx{"error": err})
} else {
e.lock = nil
}
return nil
}
// Close closes the etcd client.
func (e *Etcd) Close() error {
var err error
if e.lock != nil {
ctx, cancel := context.WithTimeout(context.Background(), e.timeout)
err = e.lock.Unlock(ctx)
cancel()
if err == nil {
e.lock = nil
}
}
cErr := e.client.Close()
if cErr != nil {
if err != nil {
log.Error("error closing etcd client", log.Ctx{"error": cErr})
return err
}
return cErr
}
return err
}
go/pserver/client/etcd_client_test.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
package client_test
import (
"io/ioutil"
"net/url"
"os"
"strings"
"sync"
"testing"
"github.com/PaddlePaddle/Paddle/go/pserver/client"
"github.com/coreos/etcd/embed"
)
func TestSelector(t *testing.T) {
etcdDir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
cfg := embed.NewConfig()
lpurl, _ := url.Parse("http://localhost:0")
lcurl, _ := url.Parse("http://localhost:0")
cfg.LPUrls = []url.URL{*lpurl}
cfg.LCUrls = []url.URL{*lcurl}
cfg.Dir = etcdDir
e, err := embed.StartEtcd(cfg)
if err != nil {
t.Fatal(err)
}
defer func() {
e.Close()
if err := os.RemoveAll(etcdDir); err != nil {
t.Fatal(err)
}
}()
<-e.Server.ReadyNotify()
port := strings.Split(e.Clients[0].Addr().String(), ":")[1]
endpoint := "127.0.0.1:" + port
var mu sync.Mutex
selectedCount := 0
var wg sync.WaitGroup
selectAndDone := func(c *client.Etcd) {
defer wg.Done()
selected, err := c.Select()
if err != nil {
panic(err)
}
if selected {
mu.Lock()
selectedCount++
mu.Unlock()
err = c.Done()
if err != nil {
t.Fatal(err)
}
}
}
c0 := client.NewEtcd(endpoint)
c1 := client.NewEtcd(endpoint)
c2 := client.NewEtcd(endpoint)
c3 := client.NewEtcd(endpoint)
wg.Add(3)
go selectAndDone(c0)
go selectAndDone(c1)
go selectAndDone(c2)
wg.Wait()
// simulate trainer crashed and restarted after the
// initialization process.
wg.Add(1)
go selectAndDone(c3)
wg.Wait()
mu.Lock()
if selectedCount != 1 {
t.Fatal("selected count wrong:", selectedCount)
}
mu.Unlock()
err = c0.Close()
if err != nil {
t.Fatal(err)
}
err = c1.Close()
if err != nil {
t.Fatal(err)
}
err = c2.Close()
if err != nil {
t.Fatal(err)
}
err = c3.Close()
if err != nil {
t.Fatal(err)
}
}
go/pserver/etcd_client.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package pserver
import (
"context"
"errors"
"strconv"
"strings"
"time"
"github.com/PaddlePaddle/Paddle/go/utils/networkhelper"
"github.com/coreos/etcd/clientv3"
"github.com/coreos/etcd/clientv3/concurrency"
log "github.com/inconshreveable/log15"
)
const (
// PsDesired is etcd path for store desired pserver count
PsDesired = "/ps_desired"
// PsPath is the base dir for pserver to store their addr
PsPath = "/ps/"
// PsCheckpoint is the etcd path for store checkpoints information
PsCheckpoint = "/checkpoints/"
retryTimeout = 5 * time.Second
)
// EtcdClient is the etcd client that the pserver uses for fault
// tolerance, service registry and coordination.
type EtcdClient struct {
numPservers int
endpoints string
client *clientv3.Client
sess *concurrency.Session
dialTimeout time.Duration
ttlSec int
// FIXME: ensure GetExternalIP gets the correct ip for trainers to connect.
externalIP string
// desired number of pservers in the job.
// assume desired will not change during one training job.
desired int
}
// NewEtcdClient creates an EtcdClient
func NewEtcdClient(endpoints string, numPservers int, dialtimeout time.Duration, ttlSec int) *EtcdClient {
return &EtcdClient{
dialTimeout: dialtimeout,
ttlSec: ttlSec,
numPservers: numPservers,
endpoints: endpoints,
}
}
// Register registers the pserver on etcd
//
// Register returns the index of the current pserver.
func (e *EtcdClient) Register(port int) (int, error) {
var err error
e.externalIP, err = networkhelper.GetExternalIP()
if err != nil {
return 0, err
}
// initialize connection to etcd.
ep := strings.Split(e.endpoints, ",")
for {
cli, err := clientv3.New(clientv3.Config{
Endpoints: ep,
DialTimeout: e.dialTimeout,
})
if err != nil {
log.Error("connect to etcd error", log.Ctx{"error": err})
time.Sleep(retryTimeout)
continue
}
e.client = cli
sess, err := concurrency.NewSession(cli, concurrency.WithTTL(e.ttlSec))
if err != nil {
log.Error("create etcd session error", log.Ctx{"error": err})
time.Sleep(retryTimeout)
continue
}
e.sess = sess
log.Debug("connected to etcd", log.Ctx{"endpoint": e.endpoints})
break
}
// init /ps_desired using transaction, for multiple pservers may want to write
// it at the same time.
for {
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
_, err := e.initDesiredPservers(ctx, e.numPservers)
cancel()
if err != nil {
log.Warn("pserver init error", log.Ctx{"error": err, "num pservers": e.numPservers})
time.Sleep(retryTimeout)
continue
}
break
}
// TODO: when implementing extending or reducing pservers, /ps_desired is
// changed, then we need to watch /ps_desired node for events. For now, just
// write once when init and read from it.
// wait and set s.desired init value
for {
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
resp, err := e.client.Get(ctx, PsDesired)
cancel()
if err != nil {
log.Error("get etcd key error", log.Ctx{"key": PsDesired, "error": err})
time.Sleep(retryTimeout)
continue
}
if len(resp.Kvs) != 0 {
e.desired, err = strconv.Atoi(string(resp.Kvs[0].Value))
if err != nil {
log.Error(
"psDesired atoi error",
log.Ctx{"error": err, "value": string(resp.Kvs[0].Value)},
)
time.Sleep(retryTimeout)
// NOTE: wait util ps_desired value change
continue
}
break
}
}
var pserverIdx int
// try register pserver node on etcd
for {
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
var err error
pserverIdx, err = e.registerPserverEtcd(ctx, port)
cancel()
if err != nil {
log.Warn("register pserver on etcd error", log.Ctx{"error": err})
time.Sleep(retryTimeout)
continue
}
break
}
return pserverIdx, nil
}
func (e *EtcdClient) initDesiredPservers(ctx context.Context, numPservers int) (*clientv3.TxnResponse, error) {
return concurrency.NewSTM(e.client, func(c concurrency.STM) error {
dsStr := c.Get(PsDesired)
if dsStr == "" {
c.Put(PsDesired, strconv.Itoa(numPservers), clientv3.WithLease(e.sess.Lease()))
}
return nil
}, concurrency.WithAbortContext(ctx), concurrency.WithIsolation(concurrency.RepeatableReads))
}
// registerPserverEtcd registers pserver node on etcd using transaction.
func (e *EtcdClient) registerPserverEtcd(ctx context.Context, port int) (int, error) {
var idx int
_, err := concurrency.NewSTM(e.client, func(c concurrency.STM) error {
registered := false
for i := 0; i < e.desired; i++ {
psKey := PsPath + strconv.Itoa(i)
ps := c.Get(psKey)
log.Debug(
"register pserver got value",
log.Ctx{"value": ps, "key": psKey},
)
if ps == "" {
// find the first id and write info
pserverAddr := e.externalIP + ":" + strconv.Itoa(port)
c.Put(psKey, pserverAddr, clientv3.WithLease(e.sess.Lease()))
log.Debug("register finished", log.Ctx{"key": psKey, "value": pserverAddr})
idx = i
registered = true
break
}
}
if registered {
return nil
}
return errors.New("not registered, may due to already have enough pservers")
}, concurrency.WithAbortContext(ctx), concurrency.WithIsolation(concurrency.RepeatableReads))
if err != nil {
return 0, err
}
return idx, nil
}
// GetKey gets the value by the specified key
func (e *EtcdClient) GetKey(key string, timeout time.Duration) ([]byte, error) {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
resp, err := e.client.Get(ctx, key)
cancel()
if err != nil {
return []byte{}, err
}
kvs := resp.Kvs
if len(kvs) == 0 {
return []byte{}, nil
}
v := kvs[0].Value
return v, nil
}
// PutKey put into etcd with value by key specified
func (e *EtcdClient) PutKey(key string, value []byte, timeout time.Duration, withLease bool) error {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
var err error
if withLease {
_, err = e.client.Put(ctx, key, string(value), clientv3.WithLease(e.sess.Lease()))
} else {
_, err = e.client.Put(ctx, key, string(value))
}
cancel()
return err
}
// Shutdown shuts down the etcd client gracefully.
func (e *EtcdClient) Shutdown() error {
var err error
if e.sess != nil {
err = e.sess.Close()
}
if e.client != nil {
newErr := e.client.Close()
if newErr != nil {
if err != nil {
log.Error("shutdown error", log.Ctx{"error": newErr})
} else {
err = newErr
}
}
}
return err
}
go/pserver/optimizer.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package pserver
// #cgo CFLAGS: -I ../../
// #cgo LDFLAGS: ${SRCDIR}/client/c/libpaddle_go_optimizer.a -lstdc++ -lm
// #include "paddle/legacy/optimizer/optimizer.h"
// #include <stdlib.h>
// #include <string.h>
import "C"
import (
"fmt"
"unsafe"
log "github.com/inconshreveable/log15"
)
type optimizer struct {
opt *C.struct_paddle_optimizer
elementType ElementType
contentLen int
config []byte
}
func cArrayToSlice(p unsafe.Pointer, len int) []byte {
if p == nil {
return nil
}
// create a Go clice backed by a C array, reference:
// https://github.com/golang/go/wiki/cgo#turning-c-arrays-into-go-slices
//
// Go garbage collector will not interact with this data, need
// to be freed properly.
return (*[1 << 30]byte)(p)[:len:len]
}
func newOptimizer(paramWithConfigs ParameterWithConfig, State []byte) *optimizer {
o := &optimizer{}
o.elementType = paramWithConfigs.Param.ElementType
o.contentLen = len(paramWithConfigs.Param.Content)
p := paramWithConfigs.Param
c := paramWithConfigs.Config
s := State
paramBufferSize := C.size_t(len(p.Content))
log.Info("New Optimizer Created with config", log.Ctx{
"ElementType": p.ElementType,
"ParamSize": paramBufferSize,
"ConfigSize": len(c),
"StateSize": len(s),
})
var cbuffer unsafe.Pointer
cbuffer = C.malloc(paramBufferSize)
C.memcpy(cbuffer, unsafe.Pointer(&p.Content[0]), paramBufferSize)
var cstate unsafe.Pointer
if len(s) != 0 {
cstate = unsafe.Pointer(&s[0])
}
var cptr (*C.uchar)
if len(c) > 0 {
cptr = (*C.uchar)(&c[0])
} else {
log.Error("empty config", "param name", paramWithConfigs.Param.Name)
}
o.config = c
o.opt = C.paddle_create_optimizer(
cptr,
C.int(len(c)),
C.paddle_element_type(p.ElementType),
cbuffer,
C.int(paramBufferSize),
(*C.char)(cstate),
C.int(len(s)),
)
return o
}
func (o *optimizer) GetWeights() []byte {
var buffer unsafe.Pointer
// we do not own the buffer, no need to free later.
bufferLen := C.paddle_optimizer_get_weights(o.opt, &buffer)
return cArrayToSlice(buffer, int(bufferLen)*C.sizeof_float)
}
func (o *optimizer) GetStates() []byte {
var cbuffer *C.char
// we owns the state buffer, need to free later.
cbufferLen := C.paddle_optimizer_get_state(o.opt, &cbuffer)
buf := cArrayToSlice(unsafe.Pointer(cbuffer), int(cbufferLen))
cpy := make([]byte, len(buf))
copy(cpy, buf)
C.free(unsafe.Pointer(cbuffer))
return cpy
}
func (o *optimizer) UpdateParameter(g Gradient) error {
if o.elementType != g.ElementType {
return fmt.Errorf("Name: %s, parameter and gradient element type not match, parameter: %v, gradient: %v", g.Name, o.elementType, g.ElementType)
}
if o.contentLen != len(g.Content) {
return fmt.Errorf("Name: %s, parameter and gradient does not have same content len, parameter: %d, gradient: %d", g.Name, o.contentLen, len(g.Content))
}
r := C.paddle_update_parameter(o.opt, C.paddle_element_type(g.ElementType), unsafe.Pointer(&g.Content[0]), C.int(len(g.Content)))
if r != 0 {
return fmt.Errorf("optimizer update returned error code: %d", r)
}
return nil
}
func (o *optimizer) Cleanup() {
if unsafe.Pointer(o.opt) != nil {
C.paddle_release_optimizer(o.opt)
o.opt = (*C.struct_paddle_optimizer)(nil)
}
}
go/pserver/optimizer_test.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package pserver
import (
"encoding/binary"
"io/ioutil"
"math"
"testing"
"github.com/stretchr/testify/assert"
)
func TestOptimizerCreateRelease(t *testing.T) {
p := Parameter{
Name: "a",
ElementType: Int32,
}
p.Content = []byte{1, 3}
config, err := ioutil.ReadFile("./client/c/test/testdata/optimizer.pb")
if err != nil {
t.Fatalf("read optimizer proto failed")
}
param := ParameterWithConfig{
Param: p,
Config: config,
}
o := newOptimizer(param, nil)
o.Cleanup()
}
func float32Bytes(float float32) []byte {
bits := math.Float32bits(float)
bytes := make([]byte, 4)
binary.LittleEndian.PutUint32(bytes, bits)
return bytes
}
func TestOptimizerState(t *testing.T) {
p := Parameter{
Name: "a",
ElementType: Int32,
}
weights := float32Bytes(100)
p.Content = weights
config, err := ioutil.ReadFile("./client/c/test/testdata/optimizer.pb")
if err != nil {
t.Fatalf("read optimizer proto failed")
}
param := ParameterWithConfig{
Param: p,
Config: config,
}
o := newOptimizer(param, nil)
s := o.GetStates()
// clear param content and check if the state is restored.
param.Param.Content = float32Bytes(300)
o1 := newOptimizer(param, s)
s1 := o1.GetStates()
assert.Equal(t, s, s1)
assert.Equal(t, weights, o.GetWeights())
assert.Equal(t, weights, o1.GetWeights())
o.Cleanup()
o1.Cleanup()
}
go/pserver/service.go 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package pserver
import (
"bufio"
"bytes"
"encoding/binary"
"encoding/gob"
"encoding/json"
"errors"
"fmt"
"hash/crc32"
"io/ioutil"
"os"
"path"
"strconv"
"strings"
"sync"
"time"
"github.com/golang/protobuf/proto"
uuid "github.com/satori/go.uuid"
pb "github.com/PaddlePaddle/Paddle/go/proto"
log "github.com/inconshreveable/log15"
)
// ElementType is the type of elements of a Parameter.
type ElementType int
// ErrCheckpointNotFound indicates that the pserver checkpoint could
// not be found.
var ErrCheckpointNotFound = errors.New("checkpoint not found in etcd")
// RPC error message.
const (
AlreadyInitialized = "pserver already initialized"
Uninitialized = "pserver not fully initialized"
WrongChecksum = "checkpoint file checksum validation failed"
)
// Supported element types.
const (
Int32 ElementType = iota
UInt32
Int64
UInt64
Float32
Float64
)
// Parameter is a piece of data to sync with the parameter server.
type Parameter struct {
Name string
ElementType ElementType
Content []byte
}
func float32ToString(b []byte) string {
f := make([]float32, len(b)/4)
buf := bytes.NewReader(b)
err := binary.Read(buf, binary.LittleEndian, &f)
if err != nil {
return ""
}
return fmt.Sprintf("%v", f)
}
func float32ByteToString(c []byte) string {
var a []byte
var b []byte
if len(c) <= 80 {
a = c
} else {
a = c[0:40]
b = c[len(c)-40:]
}
var s string
s = float32ToString(a)
if b == nil {
return s
}
s = strings.Replace(s, "]", "", -1) + "..." + strings.Replace(float32ToString(b), "[", "", -1)
return s
}
func (p Parameter) String() string {
if p.ElementType != Float32 {
return fmt.Sprintf("name:%v ElementType:%v",
p.Name, p.ElementType)
}
return float32ByteToString(p.Content)
}
// ParameterWithConfig contains the parameter and the configuration.
type ParameterWithConfig struct {
Param Parameter
Config []byte // parameter configuration in Proto Buffer format
}
// checkpointMeta saves checkpoint metadata
type checkpointMeta struct {
UUID string `json:"uuid"`
Path string `json:"path"`
CRC32 uint32 `json:"crc32"`
Timestamp int64 `json:"timestamp"`
}
// Checkpoint is the pserver shard persist in file.
type Checkpoint []parameterCheckpoint
// Gradient is the gradient of the parameter.
type Gradient Parameter
// Service is the RPC service for pserver.
type Service struct {
initialized chan struct{}
idx int
checkpointInterval time.Duration
checkpointPath string
client KVStore
mu sync.Mutex
optMap map[string]*optimizer
}
// parameterCheckpoint saves parameter checkpoint.
type parameterCheckpoint struct {
ParameterWithConfig
State []byte
}
type KVStore interface {
GetKey(key string, timeout time.Duration) ([]byte, error)
PutKey(key string, value []byte, timeout time.Duration, withLease bool) error
}
func loadMeta(e KVStore, idx int) (meta checkpointMeta, err error) {
v, err := e.GetKey(PsCheckpoint+strconv.Itoa(idx), 3*time.Second)
if err != nil {
return
}
if len(v) == 0 {
err = ErrCheckpointNotFound
return
}
if err = json.Unmarshal(v, &meta); err != nil {
return
}
return
}
// LoadCheckpoint loads checkpoint from file.
func LoadCheckpoint(e KVStore, idx int) (Checkpoint, error) {
log.Info("Loading checkpoint", "pserver index", idx)
defer traceTime(time.Now(), "load checkpoint")
cpMeta, err := loadMeta(e, idx)
if err != nil {
return nil, err
}
content, err := ioutil.ReadFile(cpMeta.Path)
if err != nil {
return nil, err
}
crc32 := crc32.ChecksumIEEE(content)
if crc32 != cpMeta.CRC32 {
return nil, errors.New(WrongChecksum)
}
dec := gob.NewDecoder(bytes.NewReader(content))
var cp Checkpoint
if err = dec.Decode(&cp); err != nil {
return nil, err
}
return cp, nil
}
// NewService creates a new service, will bypass etcd registration if no
// endpoints specified. It will recovery from checkpoint file if a exists a specified checkpoint.
func NewService(idx int, interval time.Duration, path string, client KVStore, cp Checkpoint) (*Service, error) {
s := &Service{
idx: idx,
checkpointInterval: interval,
checkpointPath: path,
client: client,
}
s.optMap = make(map[string]*optimizer)
s.initialized = make(chan struct{})
if cp != nil {
for _, item := range cp {
p := ParameterWithConfig{
Param: item.Param,
Config: item.Config,
}
s.optMap[p.Param.Name] = newOptimizer(p, item.State)
}
close(s.initialized)
}
return s, nil
}
// InitParam initializes a parameter.
func (s *Service) InitParam(paramWithConfigs ParameterWithConfig, _ *int) error {
select {
case <-s.initialized:
log.Warn("init param called but parameters already initialized.")
return errors.New(AlreadyInitialized)
default:
}
c := &pb.OptimizerConfig{}
proto.Unmarshal(paramWithConfigs.Config, c)
log.Debug(fmt.Sprintf("OptimizerConfig:%v", c))
s.mu.Lock()
defer s.mu.Unlock()
// TODO(helin): check if paramWithConfigs.Param.Content is
// properly memory aligned, if not, make copy to a memory
// aligned region.
s.optMap[paramWithConfigs.Param.Name] = newOptimizer(paramWithConfigs, nil)
log.Info(
"init parameter",
"name", paramWithConfigs.Param.Name,
"config len", len(paramWithConfigs.Config),
"param len", len(paramWithConfigs.Param.Content),
"type", paramWithConfigs.Param.ElementType,
)
return nil
}
// FinishInitParams tells the parameter server that the parameter
// initialization has finished.
func (s *Service) FinishInitParams(_ int, _ *int) error {
select {
case <-s.initialized:
log.Warn("finished init param called but parameters already initialized.")
return errors.New(AlreadyInitialized)
default:
}
close(s.initialized)
go func() {
t := time.Tick(s.checkpointInterval)
for range t {
err := s.checkpoint()
if err != nil {
log.Error("checkpoint error", log.Ctx{"error": err})
}
}
}()
log.Info("init parameter finished.")
return nil
}
// SendGrad sends gradient to parameter servers for parameter
// optimization.
func (s *Service) SendGrad(g Gradient, _ *int) error {
select {
case <-s.initialized:
default:
log.Warn("received gradient before initialization.",
"name", g.Name, "size", len(g.Content), "type", g.ElementType)
return errors.New(Uninitialized)
}
s.mu.Lock()
defer s.mu.Unlock()
o, ok := s.optMap[g.Name]
if !ok {
log.Warn("received gradient but can't find name.",
"name", g.Name, "size", len(g.Content), "type", g.ElementType)
return fmt.Errorf("parameter: %s does not exist", g.Name)
}
log.Debug(Parameter(g).String())
log.Info("received gradient from trainer, updating gradient.",
"name", g.Name, "size", len(g.Content), "type", g.ElementType)
return o.UpdateParameter(g)
}
// GetParam gets parameters from the parameter server.
func (s *Service) GetParam(name string, parameter *Parameter) error {
<-s.initialized
s.mu.Lock()
defer s.mu.Unlock()
opt, ok := s.optMap[name]
if !ok {
log.Warn("trainer wants to get a parameter that does not exist.", "name", name)
return fmt.Errorf("parameter: %s does not exist", name)
}
// The parameter content (a byte slice) may change
// during RPC serialization due to write from other
// goroutine, we allow it since mini-batch based deep
// learning optimization methods are stochastic in
// nature. This race condition is allowed deliberately
// to save the program from making a copy of the
// parameter content.
parameter.Name = name
parameter.ElementType = opt.elementType
parameter.Content = opt.GetWeights()
log.Debug(parameter.String())
log.Info("sending parameter to the trainer", "name", parameter.Name, "size", len(parameter.Content), "type", parameter.ElementType)
return nil
}
func traceTime(start time.Time, name string) {
elapsed := time.Since(start)
log.Info("time elapsed", log.Ctx{"name": name, "elapsed": elapsed})
}
// checkpoint saves checkpoint to disk.
//
// checkpoint should be only called after the parameters are
// initialized.
func (s *Service) checkpoint() (err error) {
log.Info("Begin save checkpoint.")
defer traceTime(time.Now(), "save checkpoint")
s.mu.Lock()
cp := make([]parameterCheckpoint, len(s.optMap))
index := 0
// TODO(helin): write checkpoint incrementally to reduce memory
// footprint during checkpoint.
for name, opt := range s.optMap {
var pc parameterCheckpoint
pc.Param.Name = name
pc.Param.ElementType = opt.elementType
pc.Param.Content = opt.GetWeights()
pc.Config = opt.config
pc.State = opt.GetStates()
cp[index] = pc
index++
}
s.mu.Unlock()
var buf bytes.Buffer
encoder := gob.NewEncoder(&buf)
err = encoder.Encode(cp)
if err != nil {
return
}
if _, err = os.Stat(s.checkpointPath); os.IsNotExist(err) {
err = os.MkdirAll(s.checkpointPath, os.ModePerm)
if err != nil {
return
}
}
id := uuid.NewV4().String()
p := path.Join(s.checkpointPath, id)
f, err := os.Create(p)
if err != nil {
return
}
defer func() {
closeErr := f.Close()
if closeErr != nil {
if err != nil {
log.Error("error close checkpoint file", log.Ctx{"error": closeErr})
} else {
// Set closeErr as return value.
err = closeErr
}
}
}()
writer := bufio.NewWriter(f)
_, err = writer.Write(buf.Bytes())
if err != nil {
return
}
err = writer.Flush()
if err != nil {
return
}
oldMeta, err := loadMeta(s.client, s.idx)
if err == ErrCheckpointNotFound {
log.Info("old meta not found, skip removing old meta")
err = nil
} else if err == nil {
log.Info("removing old meta")
if oldMeta.Path != "" {
rmErr := os.Remove(oldMeta.Path)
if rmErr != nil {
// log error, but still treat checkpoint as
// successful.
log.Error("remove old meta file error", log.Ctx{"error": rmErr})
}
}
}
if err != nil {
return
}
crc32 := crc32.ChecksumIEEE(buf.Bytes())
cpMeta := checkpointMeta{
UUID: id,
Timestamp: time.Now().UnixNano(),
CRC32: crc32,
Path: p,
}
json, err := json.Marshal(cpMeta)
if err != nil {
return
}
err = s.client.PutKey(PsCheckpoint+strconv.Itoa(s.idx), json, 3*time.Second, false)
if err != nil {
return
}
return
}
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package pserver
import (
"bytes"
"encoding/binary"
"fmt"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
const testDir = "./test_data"
type myKV struct {
m map[string][]byte
}
func (m *myKV) GetKey(key string, timeout time.Duration) ([]byte, error) {
if m.m == nil {
m.m = make(map[string][]byte)
}
return m.m[key], nil
}
func (m *myKV) PutKey(key string, value []byte, timeout time.Duration, withLease bool) error {
if m.m == nil {
m.m = make(map[string][]byte)
}
m.m[key] = value
return nil
}
func TestCheckpoint(t *testing.T) {
kv := &myKV{}
s, err := NewService(0, time.Hour, testDir, kv, nil)
assert.Nil(t, err)
err = s.checkpoint()
assert.Nil(t, err)
_, err = LoadCheckpoint(kv, 0)
assert.Nil(t, err)
}
func float32ToByte(f float32) []byte {
var buf bytes.Buffer
err := binary.Write(&buf, binary.LittleEndian, f)
if err != nil {
fmt.Println("binary.Write failed:", err)
}
return buf.Bytes()
}
func TestCheckpointWithData(t *testing.T) {
kv := &myKV{}
s, err := NewService(0, time.Hour, testDir, kv, nil)
assert.Nil(t, err)
var content []byte
for i := 0; i < 50000; i++ {
content = append(content, float32ToByte(float32(i))...)
}
p1 := Parameter{Name: "p1", ElementType: 1, Content: content}
err = s.InitParam(ParameterWithConfig{Param: p1}, nil)
assert.Nil(t, err)
err = s.FinishInitParams(0, nil)
assert.Nil(t, err)
var p2 Parameter
err = s.GetParam(p1.Name, &p2)
assert.Nil(t, err)
assert.Equal(t, p1, p2)
err = s.checkpoint()
assert.Nil(t, err)
cp, err := LoadCheckpoint(kv, 0)
assert.Nil(t, err)
s1, err := NewService(0, time.Hour, testDir, kv, cp)
assert.Nil(t, err)
var p3 Parameter
err = s1.GetParam(p1.Name, &p3)
assert.Nil(t, err)
assert.Equal(t, p1, p3)
}
go/pserver/service_test.go 已删除 100644 → 0
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// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package pserver_test
import (
"fmt"
"io/ioutil"
"reflect"
"sync"
"testing"
"time"
"github.com/PaddlePaddle/Paddle/go/pserver"
)
const (
OptimizerConfig = "./client/c/test/testdata/optimizer.pb"
)
func TestServiceFull(t *testing.T) {
var cp pserver.Checkpoint
s, err := pserver.NewService(0, time.Hour, "", nil, cp)
if err != nil {
t.Error(err)
}
var p pserver.Parameter
p.Name = "param_a"
p.Content = []byte{1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0}
p.ElementType = pserver.Int32
config, err := ioutil.ReadFile(OptimizerConfig)
if err != nil {
t.Fatalf("read optimizer proto failed")
}
err = s.InitParam(pserver.ParameterWithConfig{Param: p, Config: config}, nil)
if err != nil {
t.Fatal(err)
}
var p1 pserver.Parameter
p1.Name = "param_b"
p1.Content = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
p1.ElementType = pserver.Float32
err = s.InitParam(pserver.ParameterWithConfig{Param: p1, Config: config}, nil)
if err != nil {
t.Fatal(err)
}
err = s.FinishInitParams(0, nil)
if err != nil {
t.Fatal(err)
}
var param pserver.Parameter
err = s.GetParam("param_b", &param)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(param, p1) {
t.Fatal("not equal:", param, p1)
}
g1, g2 := pserver.Gradient(p1), pserver.Gradient(p)
err = s.SendGrad(g1, nil)
if err != nil {
t.Fatal(err)
}
err = s.SendGrad(g2, nil)
if err != nil {
t.Fatal(err)
}
var param1 pserver.Parameter
err = s.GetParam("param_a", &param1)
if err != nil {
t.Fatal(err)
}
// don't compare content, since it's already changed by
// gradient update.
param1.Content = nil
p.Content = nil
if !reflect.DeepEqual(param1, p) {
t.Fatal("not equal:", param1, p)
}
}
func TestMultipleInit(t *testing.T) {
var cp pserver.Checkpoint
s, err := pserver.NewService(0, time.Hour, "", nil, cp)
if err != nil {
t.Fatal(err)
}
err = s.FinishInitParams(0, nil)
if err != nil {
t.Fatal(err)
}
err = s.FinishInitParams(0, nil)
if err.Error() != pserver.AlreadyInitialized {
t.Fatal(err)
}
}
func TestUninitialized(t *testing.T) {
var cp pserver.Checkpoint
s, err := pserver.NewService(0, time.Hour, "", nil, cp)
err = s.SendGrad(pserver.Gradient{}, nil)
if err.Error() != pserver.Uninitialized {
t.Fatal(err)
}
}
func TestBlockUntilInitialized(t *testing.T) {
var cp pserver.Checkpoint
s, err := pserver.NewService(0, time.Hour, "", nil, cp)
if err != nil {
t.Error(err)
}
ch := make(chan struct{}, 2)
errCh := make(chan error, 2)
var wg sync.WaitGroup
wg.Add(1)
go func() {
var param pserver.Parameter
err := s.GetParam("param_a", &param)
if err != nil {
errCh <- err
}
wg.Done()
ch <- struct{}{}
}()
time.Sleep(50 * time.Millisecond)
select {
case <-ch:
// some function returned before initialization is completed.
t.FailNow()
case <-errCh:
t.FailNow()
default:
}
var p pserver.Parameter
p.Name = "param_a"
p.Content = []byte{1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0}
p.ElementType = pserver.Int32
config, err := ioutil.ReadFile(OptimizerConfig)
if err != nil {
t.Fatalf("read optimizer proto failed")
}
err = s.InitParam(pserver.ParameterWithConfig{Param: p, Config: config}, nil)
if err != nil {
t.Fatal(err)
}
err = s.FinishInitParams(0, nil)
if err != nil {
t.Fatal(err)
}
wg.Wait()
}
func TestGradientString(t *testing.T) {
g := pserver.Parameter{}
g.ElementType = pserver.Float32
g.Content = []byte{0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40, 0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40}
if g.String() != "[3.3702806e+12 2.142699 3.3702806e+12 2.142699]" {
t.Fatal("get float data error!")
}
g.Content = []byte{0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40,
0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40}
if g.String() != "[3.3702806e+12 2.142699 3.3702806e+12 2.142699 3.3702806e+12 2.142699 3.3702806e+12 2.142699 3.3702806e+12 2.142699...3.3702806e+12 2.142699 3.3702806e+12 2.142699 3.3702806e+12 2.142699 3.3702806e+12 2.142699 3.3702806e+12 2.142699]" {
t.Fatal("get float data error!", g.String())
}
fmt.Println(g)
}
go/utils/networkhelper/CMakeLists.txt 已删除 100644 → 0
浏览文件 @ 9f8f0fc2
# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
if(WITH_TESTING)
go_test(network_helper_test)
endif()
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go/utils/networkhelper/helper_test.go 已删除 100644 → 0
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// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package networkhelper
import "testing"
func TestGetIP(t *testing.T) {
_, err := GetExternalIP()
if err != nil {
t.Errorf("GetExternalIP returns error : %v\n", err)
}
}
paddle/CMakeLists.txt
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paddle/fluid/operators/positive_negative_pair_op.h
浏览文件 @ 6597ccb0
......@@ -14,7 +14,6 @@ limitations under the License. */
#include <vector>
#include "paddle/fluid/framework/eigen.h"
#include "paddle/fluid/framework/op_registry.h"
#include "paddle/legacy/utils/Logging.h"
namespace paddle {
namespace operators {
......
paddle/fluid/operators/sigmoid_cross_entropy_with_logits_op.h
浏览文件 @ 6597ccb0
......@@ -16,7 +16,6 @@ limitations under the License. */
#include "paddle/fluid/framework/eigen.h"
#include "paddle/fluid/framework/op_registry.h"
#include "paddle/fluid/platform/hostdevice.h"
#include "paddle/legacy/utils/Logging.h"
namespace paddle {
namespace operators {
......
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# C-API Example Usage
* [Model Inference](./model_inference/README.md)
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