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35ce6ac2
编写于
12月 14, 2018
作者:
H
heqiaozhi
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差异文件
add ps_instance doc
上级
caa6b596
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1
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1 changed file
with
50 addition
and
8 deletion
+50
-8
python/paddle/fluid/distributed/ps_instance.py
python/paddle/fluid/distributed/ps_instance.py
+50
-8
未找到文件。
python/paddle/fluid/distributed/ps_instance.py
浏览文件 @
35ce6ac2
...
...
@@ -14,27 +14,36 @@
import
helper
as
dist_helper
import
sys
class
PaddlePSInstance
(
object
):
"""
PaddlePSInstance class is used to generate A instance of server or worker
Args:
server_worker_mode: is a value 0 or 1, default is 1
proc_per_node: process per node, default is 2
Examples:
instance = PaddlePSInstance(1, 2)
"""
def
__init__
(
self
,
server_worker_mode
,
proc_per_node
):
self
.
dh
=
dist_helper
.
MPIHelper
()
self
.
_rankid
=
self
.
dh
.
get_rank
()
self
.
_server_worker_mode
=
server_worker_mode
self
.
_proc_per_node
=
proc_per_node
self
.
_nodes
=
self
.
dh
.
get_size
()
self
.
_ip
=
0
self
.
_worker_num
=
self
.
_nodes
*
self
.
_proc_per_node
/
2
self
.
_server_num
=
self
.
_nodes
*
self
.
_proc_per_node
/
2
self
.
_total_server_worker
=
self
.
_worker_num
+
self
.
_server_num
self
.
_node_type
=
None
#IDLE=-1, WORKER=1, SERVER=0
self
.
_node_type
=
None
#IDLE=-1, WORKER=1, SERVER=0
self
.
_set_nodetype
()
self
.
_comm
=
None
self
.
_split_comm
()
def
_set_nodetype
(
self
):
if
self
.
_server_worker_mode
==
0
:
if
self
.
_rankid
<
self
.
_server_num
:
if
self
.
_rankid
<
self
.
_server_num
:
self
.
_node_type
=
1
elif
self
.
_rankid
<
self
.
_total_server_worker
:
self
.
_node_type
=
0
...
...
@@ -46,13 +55,13 @@ class PaddlePSInstance(object):
self
.
_node_type
=
0
else
:
self
.
_node_type
=
1
else
:
self
.
_node_type
=
-
1
;
else
:
self
.
_node_type
=
-
1
else
:
self
.
_node_type
=
-
1
#if self._rankid == 0:
#print "node type: ", self._node_type
#print "node type: ", self._node_type
def
_split_comm
(
self
):
if
self
.
is_server
():
...
...
@@ -62,45 +71,78 @@ class PaddlePSInstance(object):
pass
def
get_worker_index
(
self
):
"""
Return worker index
"""
if
self
.
_server_worker_mode
==
0
:
return
self
.
_rankid
==
self
.
server_num
else
:
return
self
.
_rankid
/
self
.
_proc_per_node
def
get_server_index
(
self
):
"""
Return server index
"""
if
self
.
_server_worker_mode
==
0
:
return
self
.
rank_id
else
:
return
self
.
rank_id
/
self
.
_proc_per_node
def
is_worker
(
self
):
"""
Return instance is worker or not
"""
return
self
.
_node_type
==
1
def
is_server
(
self
):
"""
Return instance is server or not
"""
return
self
.
_node_type
==
0
def
is_first_worker
(
self
):
"""
Return instance is first worker or not
"""
return
self
.
is_worker
()
and
0
==
self
.
get_worker_index
()
def
set_ip
(
self
,
ip
):
"""
set server ip
"""
self
.
_ip
=
ip
def
gather_ips
(
self
):
"""
Return all servers and workers ip throught mpi allgather
"""
self
.
_ips
=
self
.
dh
.
comm
.
allgather
(
self
.
_ip
)
return
self
.
_ips
def
get_node_cnt
(
self
):
"""
Return node cnt
"""
return
self
.
_nodes
def
barrier_all
(
self
):
"""
barrier workers and servers
"""
self
.
dh
.
comm
.
barrier
()
def
barrier_worker
(
self
):
"""
barrier workers
"""
if
self
.
is_worker
():
self
.
_comm
.
barrier
()
pass
def
finalize
(
self
):
"""
MPI finalize
"""
self
.
dh
.
finalize
()
pass
...
...
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