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675 lines
23 KiB
675 lines
23 KiB
# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import paddle
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from paddle.distributed.fleet.proto import distributed_strategy_pb2
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from paddle.fluid.framework import Variable
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import google.protobuf.text_format
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def get_msg_dict(msg):
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res_dict = {}
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fields = msg.DESCRIPTOR.fields
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for f in fields:
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res_dict[f.name] = getattr(msg, f.name)
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return res_dict
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def assign_configs_value(msg, config):
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fields = msg.DESCRIPTOR.fields
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for key in config:
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for f in fields:
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if key == f.name:
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if f.label == 3:
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getattr(msg, f.name).extend(config[f.name])
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elif f.label == 1 or f.label == 2:
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setattr(msg, f.name, config[f.name])
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def check_configs_key(msg, config, field_name):
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key_list = msg.DESCRIPTOR.fields_by_name.keys()
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for key in config:
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assert key in key_list, "key:{} not in {}".format(key, field_name)
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class DistributedJobInfo(object):
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"""
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DistributedJobInfo will serialize all distributed training information
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Just for inner use: 1) debug 2) replicate experiments
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"""
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def __init__(self):
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self.job_info = distributed_strategy_pb2.DistributedJobInfo()
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def _set_worker_num(self, worker_num):
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self.job_info.worker_num = worker_num
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def _set_server_num(self, server_num):
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self.job_info.server_num = server_num
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def _set_worker_ips(self, worker_ips):
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self.job_info.worker_ips.extend(worker_ips)
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def _set_server_endpoints(self, server_endpoints):
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self.job_info.server_endpoints.extend(server_endpoints)
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def _set_origin_startup(self, origin_startup_prog):
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self.job_info.origin_startup = str(origin_startup_prog)
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def _set_origin_main(self, origin_main_prog):
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self.job_info.origin_main = str(origin_main_prog)
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def _distributed_main(self, distributed_main_prog):
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self.job_info.distributed_main = str(distributed_main_prog)
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def _optimizer_name(self, optimizer_name):
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self.job_info.optimizer_name = optimizer_name
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def _set_distributed_strategy(self, dist_strategy):
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self.job_info.strategy = dist_strategy
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class DistributedStrategy(object):
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__lock_attr = False
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def __init__(self):
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"""
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DistributedStrategy is the main configuration entry for distributed training of Paddle.
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All of the distributed training configurations can be configured in DistributedStrategy,
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such as automatic mixed precision (AMP), Layer-wise Adaptive Rate Scaling (LARS),
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asynchronous update parameter server(ASGD), etc.
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DistributedStrategy can be serialized into protobuf file or deserialized from protobuf file
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Users who run local training usually configure BuildStrategy and ExecutionStrategy, and
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DistributedStrategy supports configurations from BuildStrategy and ExecutionStrategy
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"""
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self.strategy = distributed_strategy_pb2.DistributedStrategy()
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self.__lock_attr = True
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def __setattr__(self, key, value):
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if self.__lock_attr and not hasattr(self, key):
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raise TypeError("%s is not a attribute of %s" %
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(key, self.__class__.__name__))
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object.__setattr__(self, key, value)
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def save_to_prototxt(self, output):
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"""
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Serialize current DistributedStrategy to string and save to output file
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Examples:
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.. code-block:: python
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import paddle.distributed.fleet as fleet
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strategy = fleet.DistributedStrategy()
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strategy.dgc = True
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strategy.recompute = True
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strategy.recompute_configs = {"checkpoint": ["x"]}
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strategy.save_to_prototxt("dist_strategy.prototxt")
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"""
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with open(output, "w") as fout:
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fout.write(str(self.strategy))
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def load_from_prototxt(self, pb_file):
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"""
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Load from prototxt file for DistributedStrategy initialization
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Examples:
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.. code-block:: python
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import paddle.distributed.fleet as fleet
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strategy = fleet.DistributedStrategy()
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strategy.load_from_prototxt("dist_strategy.protoxt")
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"""
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with open(pb_file, 'r') as f:
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self.strategy = google.protobuf.text_format.Merge(
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str(f.read()), self.strategy)
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@property
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def execution_strategy(self):
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"""
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Configure ExecutionStrategy for DistributedStrategy
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Examples:
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.. code-block:: python
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exe_strategy = paddle.fluid.ExecutionStrategy()
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exe_strategy.num_threads = 10
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exe_strategy.num_iteration_per_drop_scope = 10
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exe_strategy.num_iteration_per_run = 10
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strategy = paddle.distributed.fleet.DistributedStrategy()
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strategy.execution_strategy = exe_strategy
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"""
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execution_strategy = paddle.fluid.ExecutionStrategy()
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fields = self.strategy.execution_strategy.DESCRIPTOR.fields
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for f in fields:
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setattr(execution_strategy, f.name,
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getattr(self.strategy.execution_strategy, f.name))
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return execution_strategy
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@execution_strategy.setter
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def execution_strategy(self, strategy):
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fields = self.strategy.execution_strategy.DESCRIPTOR.fields
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for f in fields:
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setattr(self.strategy.execution_strategy, f.name,
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getattr(strategy, f.name))
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@property
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def build_strategy(self):
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"""
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Configure BuildStrategy for DistributedStrategy
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Note that the properties of BuildStrategy are valid in DistributedStrategy
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only if the property is non-distributed strategy.
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Examples:
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.. code-block:: python
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build_strategy = paddle.fluid.BuildStrategy()
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build_strategy.enable_sequential_execution = True
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build_strategy.fuse_elewise_add_act_ops = True
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build_strategy.fuse_bn_act_ops = True
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build_strategy.enable_auto_fusion = True
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build_strategy.fuse_relu_depthwise_conv = True
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build_strategy.fuse_broadcast_ops = True
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build_strategy.fuse_all_optimizer_ops = True
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build_strategy.enable_inplace = True
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strategy = paddle.distributed.fleet.DistributedStrategy()
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strategy.build_strategy = build_strategy
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"""
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build_strategy = paddle.fluid.BuildStrategy()
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fields = self.strategy.build_strategy.DESCRIPTOR.fields
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for f in fields:
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setattr(build_strategy, f.name,
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getattr(self.strategy.build_strategy, f.name))
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return build_strategy
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@build_strategy.setter
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def build_strategy(self, strategy):
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fields = self.strategy.build_strategy.DESCRIPTOR.fields
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for f in fields:
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if f.label == 1 or f.label == 2: # optional and required field
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setattr(self.strategy.build_strategy, f.name,
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getattr(strategy, f.name))
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elif f.label == 3: # repeated field
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getattr(self.strategy.build_strategy,
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f.name).extend(getattr(strategy, f.name))
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@property
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def a_sync(self):
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"""
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Indicating whether we are using asynchronous stocastic gradient descent updates
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for training. This property is valid when we are using parameter server training,
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which is implied by setting approperate RoleMaker
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Default value: True
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Examples:
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.. code-block:: python
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import paddle.distributed.fleet as fleet
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role_maker = fleet.PaddleCloudRoleMaker()
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fleet.init(role_maker)
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strategy = fleet.DistributedStrategy()
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strategy.a_sync = True # by default this is True
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# code block for defining loss and local optimizer
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# sgd = fleet.distributed_optimizer(optimizer, strategy)
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"""
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return self.strategy.a_sync
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@a_sync.setter
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def a_sync(self, flag):
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if isinstance(flag, bool):
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self.strategy.a_sync = flag
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self.a_sync_configs = {"k_steps": 0}
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else:
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raise ValueError(
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"The type of `flag` is invalid, expected type is bool, but received %s".
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format(type(flag)))
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@property
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def a_sync_configs(self):
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"""
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Set a_sync update configurations. In general, asynchronous parameter server
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training has serveral configurable settings that can be configured through
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a dict.
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**Notes**:
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**Detailed arguments for a_sync_configs**
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**k_step**: number of local optimization updates before communication
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**max_merge_var_num**: maximum number of merged gradients before communication
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**send_queue_size**: a buffer size of worker communication
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**independent_recv_thread**: if we are using independent recv thread for communication
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**thread_pool_size**: number of thread pool
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**send_wait_times**: waiting time for sending gradients
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**runtime_split_send_recv**: if we are using Tensor split for send and recv during runtime
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Examples:
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.. code-block:: python
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import paddle.distributed.fleet as fleet
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role_maker = fleet.PaddleCloudRoleMaker()
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fleet.init(role_maker)
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strategy = fleet.DistributedStrategy()
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strategy.a_sync = True # by default this is True
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configs = {"k_step": 10000, "send_queue_size": 32}
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strategy.a_sync_configs = configs
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# code block for defining loss and local optimizer
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# sgd = fleet.distributed_optimizer(optimizer, strategy)
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"""
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return get_msg_dict(self.strategy.a_sync_configs)
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@a_sync_configs.setter
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def a_sync_configs(self, configs):
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check_configs_key(self.strategy.a_sync_configs, configs,
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"a_sync_configs")
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assign_configs_value(self.strategy.a_sync_configs, configs)
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@property
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def amp(self):
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"""
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Indicating whether we are using automatic mixed precision training
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Default Value: False
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Examples:
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.. code-block:: python
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import paddle.distributed.fleet as fleet
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strategy = fleet.DistributedStrategy()
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strategy.amp = True # by default this is false
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"""
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return self.strategy.amp
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@amp.setter
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def amp(self, flag):
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if isinstance(flag, bool):
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self.strategy.amp = flag
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else:
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print("WARNING: amp should have value of bool type")
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@property
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def amp_configs(self):
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return get_msg_dict(self.strategy.amp_configs)
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@amp_configs.setter
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def amp_configs(self, configs):
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check_configs_key(self.strategy.amp_configs, configs, "amp_configs")
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assign_configs_value(self.strategy.amp_configs, configs)
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@property
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def recompute(self):
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"""
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Indicating whether we are using forward recomputation for memory optimization
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Default value: False
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Examples:
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.. code-block:: python
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import paddle.distributed.fleet as fleet
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strategy = fleet.DistributedStrategy()
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strategy.recompute = True
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# suppose x and y are names of checkpoint tensors for recomputation
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strategy.recompute_configs = {"checkpoints": ["x", "y"]}
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"""
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return self.strategy.recompute
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@property
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def sync_nccl_allreduce(self):
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return self.strategy.sync_nccl_allreduce
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@sync_nccl_allreduce.setter
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def sync_nccl_allreduce(self, flag):
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if isinstance(flag, bool):
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self.strategy.sync_nccl_allreduce = flag
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else:
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print("WARNING: sync_nccl_allreduce should have value of bool type")
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@property
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def use_hierarchical_allreduce(self):
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return self.strategy.use_hierarchical_allreduce
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@use_hierarchical_allreduce.setter
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def use_hierarchical_allreduce(self, flag):
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if isinstance(flag, bool):
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self.strategy.use_hierarchical_allreduce = flag
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else:
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print(
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"WARNING: use_hierarchical_allreduce should have value of bool type"
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)
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@property
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def hierarchical_allreduce_inter_nranks(self):
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return self.strategy.hierarchical_allreduce_inter_nranks
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@hierarchical_allreduce_inter_nranks.setter
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def hierarchical_allreduce_inter_nranks(self, value):
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if isinstance(value, int):
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self.strategy.hierarchical_allreduce_inter_nranks = value
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else:
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print(
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"WARNING: hierarchical_allreduce_inter_nranks should have value of int type"
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)
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@property
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def sync_batch_norm(self):
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return self.strategy.sync_batch_norm
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@sync_batch_norm.setter
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def sync_batch_norm(self, flag):
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if isinstance(flag, bool):
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self.strategy.sync_batch_norm = flag
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else:
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print("WARNING: sync_batch_norm should have value of bool type")
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@property
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def fuse_all_reduce_ops(self):
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return self.strategy.fuse_all_reduce_ops
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@fuse_all_reduce_ops.setter
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def fuse_all_reduce_ops(self, flag):
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if isinstance(flag, bool):
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self.strategy.fuse_all_reduce_ops = flag
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else:
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print("WARNING: fuse_all_reduce_ops should have value of bool type")
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@property
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def fuse_grad_size_in_MB(self):
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return self.strategy.fuse_grad_size_in_MB
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@fuse_grad_size_in_MB.setter
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def fuse_grad_size_in_MB(self, value):
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if isinstance(value, int):
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self.strategy.fuse_grad_size_in_MB = value
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else:
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print("WARNING: fuse_grad_size_in_MB should have value of int type")
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@property
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def _fuse_grad_size_in_TFLOPS(self):
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return self.strategy.fuse_grad_size_in_TFLOPS
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@_fuse_grad_size_in_TFLOPS.setter
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def _fuse_grad_size_in_TFLOPS(self, value):
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if isinstance(value, float):
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self.strategy.fuse_grad_size_in_TFLOPS = value
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else:
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print(
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"WARNING: fuse_grad_size_in_TFLOPS should have value of float type"
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)
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@property
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def nccl_comm_num(self):
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return self.strategy.nccl_comm_num
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@nccl_comm_num.setter
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def nccl_comm_num(self, value):
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if isinstance(value, int):
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self.strategy.nccl_comm_num = value
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else:
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print("WARNING: nccl_comm_num should have value of int type")
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@recompute.setter
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def recompute(self, flag):
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if isinstance(flag, bool):
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self.strategy.recompute = flag
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else:
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print("WARNING: recompute should have value of bool type")
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@property
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def recompute_configs(self):
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"""
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Set recompute configurations. In general, the recompute strategy of current
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implementation should have some manually assign checkpoints
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Examples:
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.. code-block:: python
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import paddle.distributed.fleet as fleet
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strategy = fleet.DistributedStrategy()
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strategy.recompute = True
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strategy.recompute_configs = {"checkpionts": ["x", "y"]}
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"""
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return get_msg_dict(self.strategy.recompute_configs)
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@recompute_configs.setter
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def recompute_configs(self, configs):
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check_configs_key(self.strategy.recompute_configs, configs,
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"checkpoint_configs")
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assign_configs_value(self.strategy.recompute_configs, configs)
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@property
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def pipeline(self):
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"""
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Indicating whether we are using pipeline parallelism for distributed training.
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Current implementation mainly focus on single GPU machine pipeline parallelism and
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data parallelism across GPU machine. The pipeline information is indicated through
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device_guard information in user-defined program.
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Examples:
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.. code-block:: python
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import paddle.distributed.fleet as fleet
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strategy = fleet.DistributedStrategy()
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strategy.pipeline = True
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"""
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return self.strategy.pipeline
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@pipeline.setter
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def pipeline(self, flag):
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if isinstance(flag, bool):
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self.strategy.pipeline = flag
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else:
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print("WARNING: pipeline should have value of bool type")
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@property
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def pipeline_configs(self):
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"""
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Set pipeline parallelism configurations. In pipeline parallelism,
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different parts of neural networks are running on different GPUS.
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There are Tensor queue buffer between each pair of neighborhood GPUS
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that are responsible for synchronizing hidden Tensor results between
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GPUs. Pipeline parallelism consists of serveral producer-consumer style
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hardware pairs, such as GPU-GPU, CPU-GPU, GPU-XPU. The best way to speedup
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pipeline parallelism is to make the size of Tensor in Tensor queue smaller,
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so that we will have a faster producer for downstream consumers.
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**Notes**:
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**Detailed arguments for pipeline_configs**
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**micro_batch**: the number of small batches in each user defined batch
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Examples:
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.. code-block:: python
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import paddle.distributed.fleet as fleet
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strategy = fleet.DistributedStrategy()
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strategy.pipeline = True
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strategy.pipeline_configs = {"micro_batch": 12}
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"""
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return get_msg_dict(self.strategy.pipeline_configs)
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@pipeline_configs.setter
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def pipeline_configs(self, configs):
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check_configs_key(self.strategy.pipeline_configs, configs,
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"pipeline_configs")
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assign_configs_value(self.strategy.pipeline_configs, configs)
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@property
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def localsgd(self):
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return self.strategy.localsgd
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@localsgd.setter
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def localsgd(self, flag):
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if isinstance(flag, bool):
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self.strategy.localsgd = flag
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else:
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print("WARNING: localsgd should have value of bool type")
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|
|
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@property
|
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def localsgd_configs(self):
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return get_msg_dict(self.strategy.localsgd_configs)
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|
|
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@localsgd_configs.setter
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|
def localsgd_configs(self, configs):
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check_configs_key(self.strategy.localsgd_configs, configs,
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|
"localsgd_configs")
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assign_configs_value(self.strategy.localsgd_configs, configs)
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|
|
|
@property
|
|
def dgc(self):
|
|
return self.strategy.dgc
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|
|
|
@dgc.setter
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|
def dgc(self, flag):
|
|
if isinstance(flag, bool):
|
|
self.strategy.dgc = flag
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|
else:
|
|
print("WARNING: dgc should have value of bool type")
|
|
|
|
@property
|
|
def dgc_configs(self):
|
|
return get_msg_dict(self.strategy.dgc_configs)
|
|
|
|
@dgc_configs.setter
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|
def dgc_configs(self, configs):
|
|
check_configs_key(self.strategy.dgc_configs, configs, "dgc_configs")
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|
assign_configs_value(self.strategy.dgc_configs, configs)
|
|
|
|
@property
|
|
def gradient_merge(self):
|
|
"""
|
|
Gradient Merge, also called as Gradient Accumulation,
|
|
is a strategy for large batch training. With this strategy,
|
|
model parameter will not be updated until user-defined steps.
|
|
For each step, the forward network and the backward network
|
|
will run to calculate the gradient of model parameters.
|
|
For every k step, the optimization network will run,
|
|
applying a specific optimization method (such as SGD, Adam)
|
|
to model parameters.
|
|
|
|
Examples:
|
|
.. code-block:: python
|
|
import paddle.distributed.fleet as fleet
|
|
strategy = fleet.DistributedStrategy()
|
|
strategy.gradient_merge = True
|
|
strategy.gradient_merge_configs = {"k_steps": 4, "avg": True}
|
|
"""
|
|
return self.strategy.gradient_merge
|
|
|
|
@gradient_merge.setter
|
|
def gradient_merge(self, flag):
|
|
if isinstance(flag, bool):
|
|
self.strategy.gradient_merge = flag
|
|
else:
|
|
print("WARNING: gradient_merge should have value of bool type")
|
|
|
|
@property
|
|
def gradient_merge_configs(self):
|
|
"""
|
|
the key-value configs of distribute_strategy
|
|
Keys:
|
|
k_steps (int): the update period of the parameters
|
|
avg (bool): whether to average the gradients of each mini-batch,
|
|
the default value is `True`
|
|
Example:
|
|
import paddle.distributed.fleet as fleet
|
|
strategy = fleet.DistributedStrategy()
|
|
strategy.gradient_merge = True
|
|
strategy.gradient_merge_configs = {"k_steps": 4, "avg": True}
|
|
"""
|
|
return get_msg_dict(self.strategy.gradient_merge_configs)
|
|
|
|
@gradient_merge_configs.setter
|
|
def gradient_merge_configs(self, configs):
|
|
check_configs_key(self.strategy.gradient_merge_configs, configs,
|
|
"gradient_configs")
|
|
assign_configs_value(self.strategy.gradient_merge_configs, configs)
|
|
|
|
@property
|
|
def lars(self):
|
|
return self.strategy.lars
|
|
|
|
@lars.setter
|
|
def lars(self, flag):
|
|
if isinstance(flag, bool):
|
|
self.strategy.lars = flag
|
|
else:
|
|
print("WARNING: lars should have value of bool type")
|
|
|
|
@property
|
|
def lars_configs(self):
|
|
return get_msg_dict(self.strategy.lars_configs)
|
|
|
|
@lars_configs.setter
|
|
def lars_configs(self, configs):
|
|
check_configs_key(self.strategy.lars_configs, configs, "lars_configs")
|
|
assign_configs_value(self.strategy.lars_configs, configs)
|
|
|
|
@property
|
|
def lamb(self):
|
|
return self.strategy.lamb
|
|
|
|
@lamb.setter
|
|
def lamb(self, flag):
|
|
if isinstance(flag, bool):
|
|
self.strategy.lamb = flag
|
|
else:
|
|
print("WARNING: lamb should have value of bool type")
|
|
|
|
@property
|
|
def lamb_configs(self):
|
|
return get_msg_dict(self.strategy.lamb_configs)
|
|
|
|
@lamb_configs.setter
|
|
def lamb_configs(self, configs):
|
|
check_configs_key(self.strategy.lamb_configs, configs, "lamb_configs")
|
|
assign_configs_value(self.strategy.lamb_configs, configs)
|
|
|
|
@property
|
|
def elastic(self):
|
|
return self.strategy.elastic
|
|
|
|
@elastic.setter
|
|
def elastic(self, flag):
|
|
if isinstance(flag, bool):
|
|
self.strategy.elastic = flag
|
|
else:
|
|
print("WARNING: elastic should have value of bool type")
|
|
|
|
@property
|
|
def auto(self):
|
|
return self.strategy.auto
|
|
|
|
@auto.setter
|
|
def auto(self, flag):
|
|
if isinstance(flag, bool):
|
|
self.strategy.auto = flag
|
|
else:
|
|
print("WARNING: auto should have value of bool type")
|
|
|
|
def __repr__(self):
|
|
fields = self.strategy.DESCRIPTOR.fields
|
|
for f in fields:
|
|
print("{}: {}".format(f.name, f.default_value))
|
|
return str(self.strategy)
|