未验证 提交 6bbe92a1 编写于 作者: L LiYuRio 提交者: GitHub

Optimize initialize time by decrease the number of pp group (#53559)

* use global group to pass meta

* use batch isend irecv

* add partial send/recv

* remove communication group

* remove p2p on npu and xpu

* remove virtual pp ut
上级 8c74ffc0
......@@ -294,11 +294,6 @@ class HybridCommunicateGroup:
def _set_p2p_group(self):
comm_lists = self._topo.get_comm_list('pipe')
self.send_next_group = None
self.send_prev_group = None
self.recv_next_group = None
self.recv_prev_group = None
for comm_ranks in comm_lists:
assert len(comm_ranks) == self._pp_degree
for idx, rank in enumerate(comm_ranks):
......@@ -310,28 +305,6 @@ class HybridCommunicateGroup:
self.next_rank = next_rank
self.prev_rank = prev_rank
next_group = paddle.distributed.new_group(
ranks=[curr_rank, next_rank]
)
if self.global_rank == curr_rank:
self.send_next_group = next_group
elif self.global_rank == next_rank:
self.recv_prev_group = next_group
prev_group = paddle.distributed.new_group(
ranks=[prev_rank, curr_rank]
)
if self.global_rank == curr_rank:
self.send_prev_group = prev_group
elif self.global_rank == prev_rank:
self.recv_next_group = prev_group
assert self.send_next_group is not None
assert self.send_prev_group is not None
assert self.recv_next_group is not None
assert self.recv_prev_group is not None
def topology(self):
return self._topo
......@@ -384,12 +357,7 @@ class HybridCommunicateGroup:
return self._pp_comm_group
def get_p2p_groups(self):
return (
self.send_next_group,
self.send_prev_group,
self.recv_next_group,
self.recv_prev_group,
)
return None
# sharding parallel message:
def _get_sharding_parallel_id(self):
......
......@@ -10,7 +10,6 @@
# 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
import warnings
import paddle
from paddle import framework
......@@ -629,10 +628,9 @@ class PipelineParallelWithInterleave(PipelineParallel):
def __init__(self, layers, hcg, strategy):
super().__init__(layers=layers, hcg=hcg, strategy=strategy)
assert layers.get_num_virtual_stages() > 1
if self.num_stages <= 2:
warnings.warn(
"Deprecate warning! In the near future the virtual pp will only available when pp degree > 2."
)
assert (
self.num_stages > 2
), "virtual pipeline must run under pp degree > 2"
assert (
framework.in_dynamic_mode()
), "virtual pipeline stage with interleave only support eager dygraph mode"
......
# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
# Copyright (c) 2023 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.
......@@ -12,15 +12,19 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import numpy as np
import paddle
from paddle import framework
from paddle.distributed.communication.batch_isend_irecv import (
_with_batch_p2p_guard,
)
from paddle.distributed.communication.group import (
_get_global_group,
_warn_cur_rank_not_in_group,
)
from ...utils import timer_helper as timer
from ...utils.log_util import logger
from .utils import number_2_dtype, paddle_2_number
_hcg = None
......@@ -28,29 +32,6 @@ _use_cache = False
_enable_partial_send_recv = True
_timers = None
_xpu_comm_group_started = False
_sync_send = os.environ.get("PADDLE_P2P_SYNC_SEND", "0")
_sync_send = _sync_send.lower() in ['1', 'true']
def _xpu_comm_group_start():
if not paddle.is_compiled_with_xpu():
return
global _xpu_comm_group_started
assert not _xpu_comm_group_started
framework.core.ProcessGroupBKCL.group_start()
_xpu_comm_group_started = True
def _xpu_comm_group_end():
if not paddle.is_compiled_with_xpu():
return
global _xpu_comm_group_started
if _xpu_comm_group_started:
framework.core.ProcessGroupBKCL.group_end()
_xpu_comm_group_started = False
def initialize_p2p_groups(
hcg, use_cache=True, enable_partial_send_recv=True, enable_timer=False
......@@ -61,23 +42,6 @@ def initialize_p2p_groups(
_enable_partial_send_recv = enable_partial_send_recv
if enable_timer:
_timers = timer.get_timers()
(
send_next_group,
send_prev_group,
recv_next_group,
recv_prev_group,
) = _hcg.get_p2p_groups()
debug_str = (
"P2pInfo: send_next_group: {}, send_prev_group: {}, "
"recv_next_group: {}, recv_prev_group: {}".format(
repr(send_next_group),
repr(send_prev_group),
repr(recv_next_group),
repr(recv_prev_group),
)
)
logger.info(debug_str)
class SendRecvMeta:
......@@ -215,84 +179,26 @@ def _is_valid_send_recv_partial(tensor, mp_degree):
return mp_degree > 1 and tensor_numel % mp_degree == 0
def _partial_send_op(
tensor, group, use_calc_stream, ring_id, dst, nranks, rank_id
):
dst_rank_in_group = dst if group is None else group.get_group_rank(dst)
if framework.in_dynamic_mode():
group = (
paddle.distributed.collective._get_default_group()
if group is None
else group
)
comm_op = (
group.process_group.send_partial_on_calc_stream
if use_calc_stream
else group.process_group.send_partial
)
return comm_op(tensor, dst_rank_in_group, nranks, rank_id)
def send_partial(
tensor, dst=0, nranks=1, rank_id=0, group=None, use_calc_stream=True
):
# dst: local rank in group
if group is not None and not group.is_member():
return
ring_id = 0 if group is None else group.id
dst_rank = (
_hcg._get_p2p_next_rank() if dst == 1 else _hcg._get_p2p_prev_rank()
)
if _is_valid_send_recv_partial(tensor, nranks):
return _partial_send_op(
tensor, group, use_calc_stream, ring_id, dst_rank, nranks, rank_id
def _partial_send_op(tensor, group, dst, nranks, rank_id):
assert (
group is not None
), "Group should be an instance for _partial_send_op."
dst_rank_in_group = group.get_group_rank(dst)
if framework.in_dygraph_mode():
return group.process_group.send_partial(
tensor, dst_rank_in_group, nranks, rank_id
)
else:
send_op = paddle.distributed.isend
return send_op(tensor.detach(), dst=dst_rank, group=group)
def _partial_recv_op(
tensor, group, use_calc_stream, ring_id, src, nranks, rank_id
):
src_rank_in_group = src if group is None else group.get_group_rank(src)
group = (
paddle.distributed.collective._get_default_group()
if group is None
else group
def _partial_recv_op(tensor, group, src, nranks, rank_id):
assert (
group is not None
), "Group should be an instance for _partial_recv_op."
src_rank_in_group = group.get_group_rank(src)
if framework.in_dygraph_mode():
return group.process_group.recv_partial(
tensor, src_rank_in_group, nranks, rank_id
)
comm_op = (
group.process_group.recv_partial_on_calc_stream
if use_calc_stream
else group.process_group.recv_partial
)
return comm_op(tensor, src_rank_in_group, nranks, rank_id)
def recv_partial(
tensor, src=0, nranks=1, rank_id=0, group=None, use_calc_stream=True
):
# src: local rank in group
if group is not None and not group.is_member():
return
ring_id = 0 if group is None else group.id
src_rank = (
_hcg._get_p2p_prev_rank() if src == 0 else _hcg._get_p2p_next_rank()
)
if _is_valid_send_recv_partial(tensor, nranks):
return _partial_recv_op(
tensor, group, use_calc_stream, ring_id, src_rank, nranks, rank_id
)
else:
if use_calc_stream:
recv_op = paddle.distributed.recv
elif framework.in_dynamic_mode():
recv_op = paddle.distributed.irecv
return recv_op(tensor.detach(), src=src_rank, group=group)
def _partial_allgather_op(
......@@ -325,6 +231,48 @@ def allgather_partial(
)
def partial_batch_isend_irecv(p2p_op_list):
group = p2p_op_list[0].group
if _warn_cur_rank_not_in_group(group):
return
if framework.in_dygraph_mode():
group = _get_global_group() if group is None else group
backend = group.backend
tasks = []
with _with_batch_p2p_guard(backend):
for p2p_op in p2p_op_list:
op = p2p_op.op
tensor = p2p_op.tensor
peer = p2p_op.peer
comm_group = p2p_op.group
nranks = p2p_op.nranks
rank_id = p2p_op.rank_id
task = op(tensor, comm_group, peer, nranks, rank_id)
if task is not None:
tasks.append(task)
return tasks
else:
raise RuntimeError("Don't support static graph mode currently.")
class PartialP2POp:
def __init__(self, op, nranks, rank_id, tensor, peer, group):
if op not in [_partial_recv_op, _partial_send_op]:
raise RuntimeError(
"Invalid ``op`` function. Expected ``op`` "
"to be of type ``_partial_send_op`` or "
"``_partial_recv_op``."
)
self.op = op
self.nranks = nranks
self.rank_id = rank_id
self.tensor = tensor
self.peer = peer
self.group = group
def _p2p_helper(
tensor_send_next, tensor_send_prev, recv_prev, recv_next, sync_recv=True
):
......@@ -377,288 +325,190 @@ def _p2p_helper(
shape=send_shape_msg, dtype=number_2_dtype(send_dtype_msg)
)
# TODO(Yuang Liu): use batch_isend_irecv replace all these comm ops
tasks = []
ops = []
partial_ops = []
pipe_group = _hcg.get_pipe_parallel_group()
# start to p2p communicate
if _sync_send:
# Some devices(NPU for example) do not support asynchronized send op, So the order is
# recv_prev -> send_next -> recv_next -> send_prev
# When using this order, the environment variable
# 'PADDLE_P2P_SYNC_SEND' should be set True
if tensor_recv_prev is not None:
if isinstance(tensor_recv_prev, tuple):
for d in tensor_recv_prev:
task = recv_partial(
d,
src=0,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.recv_prev_group,
use_calc_stream=sync_recv,
)
if sync_recv:
allgather_partial(
d,
nranks=mp_degree,
rank_id=mp_rank,
group=mp_group,
use_calc_stream=True,
)
else:
tasks.append(task)
else:
task = recv_partial(
tensor_recv_prev,
src=0,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.recv_prev_group,
use_calc_stream=sync_recv,
)
if sync_recv:
allgather_partial(
tensor_recv_prev,
nranks=mp_degree,
rank_id=mp_rank,
group=mp_group,
use_calc_stream=True,
)
else:
tasks.append(task)
if tensor_send_next is not None:
if isinstance(tensor_send_next, tuple):
for d in tensor_send_next:
paddle.distributed.wait(d, use_calc_stream=True)
send_partial(
d,
dst=1,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.send_next_group,
use_calc_stream=False,
)
else:
paddle.distributed.wait(tensor_send_next, use_calc_stream=True)
send_partial(
tensor_send_next,
dst=1,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.send_next_group,
use_calc_stream=False,
)
if tensor_recv_next is not None:
if isinstance(tensor_recv_next, tuple):
for d in tensor_recv_next:
task = recv_partial(
d,
src=1,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.recv_next_group,
use_calc_stream=sync_recv,
)
if sync_recv:
allgather_partial(
d,
nranks=mp_degree,
rank_id=mp_rank,
group=mp_group,
use_calc_stream=True,
)
else:
tasks.append(task)
else:
task = recv_partial(
tensor_recv_next,
src=1,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.recv_next_group,
use_calc_stream=sync_recv,
)
if sync_recv:
allgather_partial(
tensor_recv_next,
nranks=mp_degree,
rank_id=mp_rank,
group=mp_group,
use_calc_stream=True,
)
else:
tasks.append(task)
if tensor_send_prev is not None:
src_rank = _hcg._get_p2p_prev_rank()
if isinstance(tensor_send_prev, tuple):
for d in tensor_send_prev:
paddle.distributed.wait(d, use_calc_stream=True)
send_partial(
if _is_valid_send_recv_partial(d, mp_degree):
op = PartialP2POp(
_partial_send_op,
mp_degree,
mp_rank,
d,
dst=0,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.send_prev_group,
use_calc_stream=False,
src_rank,
pipe_group,
)
partial_ops.append(op)
else:
paddle.distributed.wait(tensor_send_prev, use_calc_stream=True)
send_partial(
tensor_send_prev,
dst=0,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.send_prev_group,
use_calc_stream=False,
op = paddle.distributed.P2POp(
paddle.distributed.isend,
d,
src_rank,
pipe_group,
)
ops.append(op)
else:
_xpu_comm_group_start()
if tensor_send_prev is not None:
if isinstance(tensor_send_prev, tuple):
for d in tensor_send_prev:
paddle.distributed.wait(d, use_calc_stream=True)
send_partial(
d,
dst=0,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.send_prev_group,
use_calc_stream=False,
if _is_valid_send_recv_partial(tensor_send_prev, mp_degree):
op = PartialP2POp(
_partial_send_op,
mp_degree,
mp_rank,
tensor_send_prev,
src_rank,
pipe_group,
)
partial_ops.append(op)
else:
paddle.distributed.wait(tensor_send_prev, use_calc_stream=True)
send_partial(
op = paddle.distributed.P2POp(
paddle.distributed.isend,
tensor_send_prev,
dst=0,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.send_prev_group,
use_calc_stream=False,
src_rank,
pipe_group,
)
ops.append(op)
if tensor_recv_prev is not None:
dst_rank = _hcg._get_p2p_prev_rank()
if isinstance(tensor_recv_prev, tuple):
for d in tensor_recv_prev:
task = recv_partial(
if _is_valid_send_recv_partial(d, mp_degree):
op = PartialP2POp(
_partial_recv_op,
mp_degree,
mp_rank,
d,
src=0,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.recv_prev_group,
use_calc_stream=sync_recv,
dst_rank,
pipe_group,
)
if sync_recv:
_xpu_comm_group_end()
allgather_partial(
partial_ops.append(op)
else:
op = paddle.distributed.P2POp(
paddle.distributed.irecv,
d,
nranks=mp_degree,
rank_id=mp_rank,
group=mp_group,
use_calc_stream=True,
dst_rank,
pipe_group,
)
ops.append(op)
else:
tasks.append(task)
else:
task = recv_partial(
if _is_valid_send_recv_partial(tensor_recv_prev, mp_degree):
op = PartialP2POp(
_partial_recv_op,
mp_degree,
mp_rank,
tensor_recv_prev,
src=0,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.recv_prev_group,
use_calc_stream=sync_recv,
dst_rank,
pipe_group,
)
if sync_recv:
_xpu_comm_group_end()
allgather_partial(
partial_ops.append(op)
else:
op = paddle.distributed.P2POp(
paddle.distributed.irecv,
tensor_recv_prev,
nranks=mp_degree,
rank_id=mp_rank,
group=mp_group,
use_calc_stream=True,
dst_rank,
pipe_group,
)
else:
tasks.append(task)
ops.append(op)
if tensor_send_next is not None:
src_rank = _hcg._get_p2p_next_rank()
if isinstance(tensor_send_next, tuple):
for d in tensor_send_next:
paddle.distributed.wait(d, use_calc_stream=True)
send_partial(
if _is_valid_send_recv_partial(d, mp_degree):
op = PartialP2POp(
_partial_send_op,
mp_degree,
mp_rank,
d,
dst=1,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.send_next_group,
use_calc_stream=False,
src_rank,
pipe_group,
)
partial_ops.append(op)
else:
op = paddle.distributed.P2POp(
paddle.distributed.isend,
d,
src_rank,
pipe_group,
)
ops.append(op)
else:
paddle.distributed.wait(tensor_send_next, use_calc_stream=True)
send_partial(
if _is_valid_send_recv_partial(tensor_send_next, mp_degree):
op = PartialP2POp(
_partial_send_op,
mp_degree,
mp_rank,
tensor_send_next,
dst=1,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.send_next_group,
use_calc_stream=False,
src_rank,
pipe_group,
)
partial_ops.append(op)
else:
op = paddle.distributed.P2POp(
paddle.distributed.isend,
tensor_send_next,
src_rank,
pipe_group,
)
ops.append(op)
if tensor_recv_next is not None:
dst_rank = _hcg._get_p2p_next_rank()
if isinstance(tensor_recv_next, tuple):
for d in tensor_recv_next:
task = recv_partial(
if _is_valid_send_recv_partial(d, mp_degree):
op = PartialP2POp(
_partial_recv_op,
mp_degree,
mp_rank,
d,
src=1,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.recv_next_group,
use_calc_stream=sync_recv,
dst_rank,
pipe_group,
)
if sync_recv:
_xpu_comm_group_end()
allgather_partial(
partial_ops.append(op)
else:
op = paddle.distributed.P2POp(
paddle.distributed.irecv,
d,
nranks=mp_degree,
rank_id=mp_rank,
group=mp_group,
use_calc_stream=True,
dst_rank,
pipe_group,
)
ops.append(op)
else:
tasks.append(task)
else:
task = recv_partial(
if _is_valid_send_recv_partial(tensor_recv_next, mp_degree):
op = PartialP2POp(
_partial_recv_op,
mp_degree,
mp_rank,
tensor_recv_next,
src=1,
nranks=mp_degree,
rank_id=mp_rank,
group=_hcg.recv_next_group,
use_calc_stream=sync_recv,
dst_rank,
pipe_group,
)
if sync_recv:
_xpu_comm_group_end()
allgather_partial(
partial_ops.append(op)
else:
op = paddle.distributed.P2POp(
paddle.distributed.irecv,
tensor_recv_next,
nranks=mp_degree,
rank_id=mp_rank,
group=mp_group,
use_calc_stream=True,
dst_rank,
pipe_group,
)
else:
tasks.append(task)
_xpu_comm_group_end()
if not sync_recv:
if framework.in_dynamic_mode():
# wait irecv tasks in eager dygraph mode with new comm library
for task in tasks:
assert task is not None
task.wait()
ops.append(op)
if len(ops) > 0:
reqs = paddle.distributed.batch_isend_irecv(ops)
for req in reqs:
req.wait()
if len(partial_ops) > 0:
reqs = partial_batch_isend_irecv(partial_ops)
for req in reqs:
req.wait()
# block cpu to wait the result
paddle.device.synchronize()
tensors_for_all_gather = []
if tensor_recv_prev is not None:
......@@ -694,7 +544,7 @@ def recv_forward(pp_first_stage, sync_recv=True):
input_tensor = None
else:
if not _send_recv_meta.has_recv_meta:
_send_recv_meta.recv_meta(_hcg.recv_prev_group)
_send_recv_meta.recv_meta(_hcg.get_pipe_parallel_group())
_send_recv_meta.has_recv_meta = _use_cache
input_tensor, _ = _p2p_helper(
......@@ -735,7 +585,9 @@ def send_forward(output_tensor, pp_last_stage):
if not pp_last_stage:
if not _send_recv_meta.has_send_meta:
_send_recv_meta.set_send_message(output_tensor)
_send_recv_meta.send_meta(output_tensor, _hcg.send_next_group)
_send_recv_meta.send_meta(
output_tensor, _hcg.get_pipe_parallel_group()
)
_send_recv_meta.has_send_meta = _use_cache
_p2p_helper(
......@@ -808,10 +660,10 @@ def send_forward_backward_recv_forward_backward(
_timers("send_forward_backward_recv_forward_backward").start()
if not _send_recv_meta.has_send_meta:
_send_recv_meta.set_send_message(output_tensor)
_send_recv_meta.send_meta(output_tensor, _hcg.send_next_group)
_send_recv_meta.send_meta(output_tensor, _hcg.get_pipe_parallel_group())
_send_recv_meta.has_send_meta = _use_cache
if recv_prev and not _send_recv_meta.has_recv_meta:
_send_recv_meta.recv_meta(_hcg.recv_prev_group)
_send_recv_meta.recv_meta(_hcg.get_pipe_parallel_group())
_send_recv_meta.has_recv_meta = _use_cache
input_tensor, output_tensor_grad = _p2p_helper(
tensor_send_next=output_tensor,
......@@ -832,10 +684,10 @@ def send_forward_recv_forward(output_tensor, recv_prev):
_timers("send_forward_recv_forward").start()
if not _send_recv_meta.has_send_meta:
_send_recv_meta.set_send_message(output_tensor)
_send_recv_meta.send_meta(output_tensor, _hcg.send_next_group)
_send_recv_meta.send_meta(output_tensor, _hcg.get_pipe_parallel_group())
_send_recv_meta.has_send_meta = _use_cache
if recv_prev and not _send_recv_meta.has_recv_meta:
_send_recv_meta.recv_meta(_hcg.recv_prev_group)
_send_recv_meta.recv_meta(_hcg.get_pipe_parallel_group())
_send_recv_meta.has_recv_meta = _use_cache
input_tensor, _ = _p2p_helper(
......
......@@ -19,17 +19,20 @@ from legacy_test.test_parallel_dygraph_dataparallel import TestMultipleGpus
class TestHybridPipeParallelWithVirtualStage(TestMultipleGpus):
def test_hybrid_parallel_pp_layer_with_virtual_stage(self):
self.run_mnist_2gpu('hybrid_parallel_pp_layer_with_virtual_stage.py')
# self.run_mnist_2gpu('hybrid_parallel_pp_layer_with_virtual_stage.py')
pass
def test_hybrid_parallel_pp_transformer_with_virtual_stage(self):
self.run_mnist_2gpu(
'hybrid_parallel_pp_transformer_with_virtual_stage.py'
)
# self.run_mnist_2gpu(
# 'hybrid_parallel_pp_transformer_with_virtual_stage.py'
# )
pass
def test_hybrid_parallel_save_load_with_virtual_stage(self):
self.run_mnist_2gpu(
'hybrid_parallel_pp_save_load_with_virtual_stage.py'
)
# self.run_mnist_2gpu(
# 'hybrid_parallel_pp_save_load_with_virtual_stage.py'
# )
pass
if __name__ == "__main__":
......
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