# Copyright (c) 2020 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_serving_client import os from .proto import sdk_configure_pb2 as sdk from .proto import general_model_config_pb2 as m_config import google.protobuf.text_format import time import sys int_type = 0 float_type = 1 class SDKConfig(object): def __init__(self): self.sdk_desc = sdk.SDKConf() self.endpoints = [] def set_server_endpoints(self, endpoints): self.endpoints = endpoints def gen_desc(self): predictor_desc = sdk.Predictor() predictor_desc.name = "general_model" predictor_desc.service_name = \ "baidu.paddle_serving.predictor.general_model.GeneralModelService" predictor_desc.endpoint_router = "WeightedRandomRender" predictor_desc.weighted_random_render_conf.variant_weight_list = "100" variant_desc = sdk.VariantConf() variant_desc.tag = "var1" variant_desc.naming_conf.cluster = "list://{}".format(":".join( self.endpoints)) predictor_desc.variants.extend([variant_desc]) self.sdk_desc.predictors.extend([predictor_desc]) self.sdk_desc.default_variant_conf.tag = "default" self.sdk_desc.default_variant_conf.connection_conf.connect_timeout_ms = 2000 self.sdk_desc.default_variant_conf.connection_conf.rpc_timeout_ms = 20000 self.sdk_desc.default_variant_conf.connection_conf.connect_retry_count = 2 self.sdk_desc.default_variant_conf.connection_conf.max_connection_per_host = 100 self.sdk_desc.default_variant_conf.connection_conf.hedge_request_timeout_ms = -1 self.sdk_desc.default_variant_conf.connection_conf.hedge_fetch_retry_count = 2 self.sdk_desc.default_variant_conf.connection_conf.connection_type = "pooled" self.sdk_desc.default_variant_conf.naming_conf.cluster_filter_strategy = "Default" self.sdk_desc.default_variant_conf.naming_conf.load_balance_strategy = "la" self.sdk_desc.default_variant_conf.rpc_parameter.compress_type = 0 self.sdk_desc.default_variant_conf.rpc_parameter.package_size = 20 self.sdk_desc.default_variant_conf.rpc_parameter.protocol = "baidu_std" self.sdk_desc.default_variant_conf.rpc_parameter.max_channel_per_request = 3 return self.sdk_desc class Client(object): def __init__(self): self.feed_names_ = [] self.fetch_names_ = [] self.client_handle_ = None self.result_handle_ = None self.feed_shapes_ = {} self.feed_types_ = {} self.feed_names_to_idx_ = {} self.rpath() self.pid = os.getpid() self.producers = [] self.consumer = None def rpath(self): lib_path = os.path.dirname(paddle_serving_client.__file__) client_path = os.path.join(lib_path, 'serving_client.so') lib_path = os.path.join(lib_path, 'lib') os.popen('patchelf --set-rpath {} {}'.format(lib_path, client_path)) def load_client_config(self, path): from .serving_client import PredictorClient from .serving_client import PredictorRes model_conf = m_config.GeneralModelConfig() f = open(path, 'r') model_conf = google.protobuf.text_format.Merge( str(f.read()), model_conf) # load configuraion here # get feed vars, fetch vars # get feed shapes, feed types # map feed names to index self.result_handle_ = PredictorRes() self.client_handle_ = PredictorClient() self.client_handle_.init(path) read_env_flags = ["profile_client", "profile_server"] self.client_handle_.init_gflags([sys.argv[ 0]] + ["--tryfromenv=" + ",".join(read_env_flags)]) self.feed_names_ = [var.alias_name for var in model_conf.feed_var] self.fetch_names_ = [var.alias_name for var in model_conf.fetch_var] self.feed_names_to_idx_ = {} self.fetch_names_to_type_ = {} self.fetch_names_to_idx_ = {} self.lod_tensor_set = set() self.feed_tensor_len = {} for i, var in enumerate(model_conf.feed_var): self.feed_names_to_idx_[var.alias_name] = i self.feed_types_[var.alias_name] = var.feed_type self.feed_shapes_[var.alias_name] = var.shape if var.is_lod_tensor: self.lod_tensor_set.add(var.alias_name) else: counter = 1 for dim in self.feed_shapes_[var.alias_name]: counter *= dim self.feed_tensor_len[var.alias_name] = counter for i, var in enumerate(model_conf.fetch_var): self.fetch_names_to_idx_[var.alias_name] = i self.fetch_names_to_type_[var.alias_name] = var.fetch_type return def connect(self, endpoints): # check whether current endpoint is available # init from client config # create predictor here predictor_sdk = SDKConfig() predictor_sdk.set_server_endpoints(endpoints) sdk_desc = predictor_sdk.gen_desc() self.client_handle_.create_predictor_by_desc(sdk_desc.SerializeToString( )) def get_feed_names(self): return self.feed_names_ def get_fetch_names(self): return self.fetch_names_ def shape_check(self, feed, key): seq_shape = 1 if key in self.lod_tensor_set: return if len(feed[key]) != self.feed_tensor_len[key]: raise SystemExit("The shape of feed tensor {} not match.".format( key)) def predict(self, feed=None, fetch=None): if feed is None or fetch is None: raise ValueError("You should specify feed and fetch for prediction") fetch_list = [] if isinstance(fetch, str): fetch_list = [fetch] elif isinstance(fetch, list): fetch_list = fetch else: raise ValueError("fetch only accepts string and list of string") feed_batch = [] if isinstance(feed, dict): feed_batch.append(feed) elif isinstance(feed, list): feed_batch = feed else: raise ValueError("feed only accepts dict and list of dict") int_slot_batch = [] float_slot_batch = [] int_feed_names = [] float_feed_names = [] fetch_names = [] counter = 0 batch_size = len(feed_batch) for key in fetch_list: if key in self.fetch_names_: fetch_names.append(key) if len(fetch_names) == 0: raise ValueError( "fetch names should not be empty or out of saved fetch list") return {} for i, feed_i in enumerate(feed_batch): int_slot = [] float_slot = [] for key in feed_i: if key not in self.feed_names_: continue if self.feed_types_[key] == int_type: if i == 0: int_feed_names.append(key) int_slot.append(feed[key]) elif self.feed_types_[key] == float_type: if i == 0: float_feed_names.append(key) float_slot.append(feed_i[key]) int_slot_batch.append(int_slot) float_slot_batch.append(float_slot) result_batch = self.result_handle_ res = self.client_handle_.batch_predict( float_slot_batch, float_feed_names, int_slot_batch, int_feed_names, fetch_names, result_batch, self.pid) result_map_batch = [] result_map = {} for i, name in enumerate(fetch_names): if self.fetch_names_to_type_[name] == int_type: result_map[name] = result_batch.get_int64_by_name(name) elif self.fetch_names_to_type_[name] == float_type: result_map[name] = result_batch.get_float_by_name(name) for i in range(batch_size): single_result = {} for key in result_map: single_result[key] = result_map[key][i] result_map_batch.append(single_result) if batch_size == 1: return result_map_batch[0] else: return result_map_batch def release(self): self.client_handle_.destroy_predictor() self.client_handle_ = None