wehub-resource-sync
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
// Copyright (c) 2024 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/phi/kernels/comm_init_all_kernel.h"
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#include <string>
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#include "glog/logging.h"
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#include "paddle/phi/core/kernel_registry.h"
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#if defined(PADDLE_WITH_XPU_BKCL)
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#include "paddle/phi/core/platform/collective_helper.h"
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#include "paddle/phi/core/platform/device/xpu/bkcl_helper.h"
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#endif
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namespace phi {
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template <typename T, typename Context>
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void CommInitAllKernel(const Context& dev_ctx,
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const std::vector<int>& devices_input,
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int ring_id) {
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#if defined(PADDLE_WITH_XPU_BKCL)
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std::vector<int> devices = devices_input;
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if (devices.empty()) {
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int count = backends::xpu::GetXPUDeviceCount();
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for (int i = 0; i < count; ++i) {
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devices.push_back(i);
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}
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}
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if (devices.size() > 1) {
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std::vector<phi::Place> place_list_;
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for (size_t i = 0; i < devices.size(); ++i) {
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auto p = XPUPlace(devices[i]);
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place_list_.push_back(p);
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}
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// create pthread to bkcl_init_rank on all devices
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auto ptr = new paddle::platform::BKCLContextMap(place_list_);
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ptr->init();
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for (size_t i = 0; i < devices.size(); ++i) {
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paddle::platform::BKCLCommContext::Instance().AssignBKCLComm(
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ptr->contexts_.at(devices[i]).comm_,
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devices.size(),
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devices[i],
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devices[i],
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ring_id);
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VLOG(0) << "bkcl communicator of rank " << devices[i] << " in ring "
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<< ring_id << " has been created on device " << devices[i];
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// TODO(WorgenZhang): need release comm_map_ when quit
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// std::call_once(once_flag_, []() {
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// std::atexit([]() {
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// platform::BKCLCommContext::Instance().ReleaseBKCLComms(); });
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// });
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}
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VLOG(0) << "done bkcl_init_rank on all devices";
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}
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#endif
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}
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} // namespace phi
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PD_REGISTER_KERNEL(
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comm_init_all, XPU, ALL_LAYOUT, phi::CommInitAllKernel, float) {}
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