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adasum_cuda_operations.h
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adasum_cuda_operations.h
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// Copyright 2019 Microsoft. 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.
// =============================================================================
#ifndef HOROVOD_ADASUM_CUDA_OPERATIONS_H
#define HOROVOD_ADASUM_CUDA_OPERATIONS_H
#include "adasum/adasum_mpi.h"
#include "nccl_operations.h"
#include <array>
namespace horovod {
namespace common {
class AdasumCudaAllreduceOp : public AdasumMPI, public NCCLAllreduce {
public:
AdasumCudaAllreduceOp(MPIContext* mpi_context, NCCLContext* nccl_context,
CUDAContext* cuda_context,
HorovodGlobalState* global_state);
~AdasumCudaAllreduceOp();
bool Enabled(const ParameterManager& param_manager,
const std::vector<TensorTableEntry>& entries,
const Response& response) const override;
Status Execute(std::vector<TensorTableEntry>& entries,
const Response& response) override;
protected:
Status NcclHierarchical(std::vector<TensorTableEntry>& entries,
const Response& response);
// Get host buffer
uint8_t* GetHostBuffer(uint64_t buffer_length);
private:
uint64_t current_host_buffer_length;
};
} // namespace common
} // namespace horovod
#endif // HOROVOD_ADASUM_CUDA_OPERATIONS_H