TensorRT-LLMs/cpp/tensorrt_llm/runtime/ncclCommunicator.h
Kaiyu Xie deaae40bd7
Update TensorRT-LLM (#787)
* Update TensorRT-LLM

---------

Co-authored-by: Shixiaowei02 <39303645+Shixiaowei02@users.noreply.github.com>
2024-01-02 17:54:32 +08:00

70 lines
2.2 KiB
C++

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