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// Copyright (c) 2024 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.
#include "paddle/phi/kernels/comm_init_all_kernel.h"
#include <string>
#include "glog/logging.h"
#include "paddle/phi/core/kernel_registry.h"
#if defined(PADDLE_WITH_NCCL) || defined(PADDLE_WITH_RCCL)
#include "paddle/phi/core/platform/collective_helper.h"
#endif
namespace phi {
template <typename T, typename Context>
void CommInitAllKernel(const Context& dev_ctx,
const std::vector<int>& devices_input,
int ring_id) {
#if defined(PADDLE_WITH_NCCL) || defined(PADDLE_WITH_RCCL)
std::vector<int> devices = devices_input;
if (devices.empty()) {
devices = backends::gpu::GetSelectedDevices();
}
paddle::platform::NCCLCommContext::Instance().CreateAllNCCLComms(devices,
ring_id);
#endif
}
} // namespace phi
PD_REGISTER_KERNEL(
comm_init_all, GPU, ALL_LAYOUT, phi::CommInitAllKernel, float) {}