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https://github.com/NVIDIA/TensorRT-LLM.git
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70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/*
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* Copyright (c) 2022-2024, NVIDIA CORPORATION. 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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*/
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#pragma once
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#include "tensorrt_llm/runtime/cudaStream.h"
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#include "tensorrt_llm/runtime/iBuffer.h"
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#include "tensorrt_llm/runtime/utils/mpiUtils.h"
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#include "tensorrt_llm/runtime/worldConfig.h"
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struct ncclComm;
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typedef struct ncclComm* ncclComm_t;
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namespace tensorrt_llm::runtime
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{
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class NcclCommunicator
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{
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public:
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explicit NcclCommunicator(ncclComm_t comm)
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: mComm{comm} {};
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explicit NcclCommunicator(int worldSize, int rank, mpi::MpiComm const& mpiComm = COMM_SESSION)
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: mComm{createComm(worldSize, rank, mpiComm)} {};
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explicit NcclCommunicator(WorldConfig const& worldConfig, mpi::MpiComm const& mpiComm = COMM_SESSION)
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: NcclCommunicator{worldConfig.getSize(), worldConfig.getRank(), mpiComm} {};
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~NcclCommunicator();
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// no copy
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NcclCommunicator(NcclCommunicator const&) = delete;
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NcclCommunicator& operator=(NcclCommunicator const&) = delete;
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void send(IBuffer const& buf, int peer, CudaStream const& stream) const
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{
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send(buf.data(), buf.getSize(), buf.getDataType(), peer, stream);
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}
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void receive(IBuffer& buf, int peer, CudaStream const& stream) const
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{
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receive(buf.data(), buf.getSize(), buf.getDataType(), peer, stream);
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}
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private:
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void send(
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void const* sendbuff, size_t count, nvinfer1::DataType dataType, int peer, CudaStream const& stream) const;
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void receive(void* sendbuff, size_t count, nvinfer1::DataType dataType, int peer, CudaStream const& stream) const;
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static ncclComm_t createComm(int worldSize, int rank, mpi::MpiComm const& mpiComm);
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ncclComm_t mComm;
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};
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} // namespace tensorrt_llm::runtime
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