Files
FastDeploy/fastdeploy/distributed/communication.py
lzy d339df2e90 Supports DP+TP+EP hybrid parallel deployment strategy (#3489)
* Support DP+TP+EP hybrid parallel deployment strategy

* Support DP+TP+EP hybrid parallel deployment strategy

* fix conflict

* add moe_tp_ep function split_allgather_out

* del tp_group in moe_cutlass_backend

* for ci

* fix parallel_config for ci

* del log
2025-08-26 00:04:01 -07:00

69 lines
2.2 KiB
Python

"""
# Copyright (c) 2025 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.
"""
from contextlib import contextmanager, nullcontext
import paddle
import paddle.distributed as dist
from paddle.distributed import fleet
_TP_AR = None
@contextmanager
def capture_custom_allreduce():
global _TP_AR
ar_context = nullcontext()
if _TP_AR is not None:
ar_context = _TP_AR.capture()
with ar_context:
yield
def use_custom_allreduce(custom_all_reduce_max_bytes: int = 8192 * 1024):
hcg = fleet.get_hybrid_communicate_group()
model_parallel_group = hcg.get_model_parallel_group()
global _TP_AR
from fastdeploy.distributed.custom_all_reduce import CustomAllreduce
_TP_AR = CustomAllreduce(model_parallel_group, custom_all_reduce_max_bytes)
try:
@paddle.jit.marker.unified
def tensor_model_parallel_all_reduce(
input_: paddle.Tensor,
group_: paddle.distributed.communication.group.Group = None,
) -> paddle.Tensor:
"""All-reduce the input tensor across model parallel group."""
global _TP_AR
if _TP_AR is not None and _TP_AR.should_custom_ar(input_):
# TODO: supports different_group custom allreduce
_TP_AR.custom_all_reduce(input_)
elif paddle.in_dynamic_mode():
if group_ is not None:
dist.all_reduce(input_, group=group_)
else:
hcg = fleet.get_hybrid_communicate_group()
mp_group = hcg.get_model_parallel_group()
dist.all_reduce(input_, group=mp_group)
else:
dist.all_reduce(input_)
except:
tensor_model_parallel_all_reduce = None