wehub-resource-sync
66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
// Copyright (c) 2022 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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#include "paddle/fluid/distributed/collective/process_group.h"
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#include "paddle/phi/backends/c_comm_lib.h"
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#if defined(PADDLE_WITH_NCCL) || defined(PADDLE_WITH_RCCL)
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#include "paddle/fluid/distributed/collective/process_group_nccl.h"
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#endif
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#if defined(PADDLE_WITH_CUSTOM_DEVICE)
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#include "paddle/fluid/distributed/collective/process_group_custom.h"
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#endif
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namespace phi::detail {
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// FIXME(paddle-dev): Since the singleton of ProcessGroup in fluid is used in
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// SyncBN, the fluid symbol will be dependent on external hardware access.
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// Here, the part that depends on the fluid symbol is individually encapsulated
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// as a temporary function to isolate external symbol dependencies.
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// In the future, the dependence on the singleton in fluid in SyncBN needs
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// to be removed.
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// In principle, the PHI Kernel cannot use the global singleton internally,
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// and the required members need to be passed in from the eucalyptus tree.
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ccl::CCLComm GetCCLComm(const Place& place, int global_gid) {
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#if defined(PADDLE_WITH_NCCL) || defined(PADDLE_WITH_RCCL) || \
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defined(PADDLE_WITH_CUSTOM_DEVICE)
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paddle::distributed::ProcessGroup* pg = nullptr;
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if (paddle::distributed::ProcessGroupMapFromGid::getInstance()->has(
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global_gid)) {
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pg = paddle::distributed::ProcessGroupMapFromGid::getInstance()->get(
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global_gid);
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} else {
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return nullptr;
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}
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#endif
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if (place.GetType() == phi::AllocationType::GPU) {
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#if defined(PADDLE_WITH_NCCL) || defined(PADDLE_WITH_RCCL)
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return static_cast<paddle::distributed::ProcessGroupNCCL*>(pg)->NCCLComm(
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place);
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#else
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return nullptr;
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#endif
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} else if (place.GetType() == phi::AllocationType::CUSTOM) { // NOLINT
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#if defined(PADDLE_WITH_CUSTOM_DEVICE)
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return static_cast<paddle::distributed::ProcessGroupCustom*>(pg)->XCCLComm(
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place);
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#else
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return nullptr;
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#endif
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} else {
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return nullptr;
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}
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}
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} // namespace phi::detail
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