64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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#ifndef TENSORFLOW_CONTRIB_MPI_MPI_UTILS_H_
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#define TENSORFLOW_CONTRIB_MPI_MPI_UTILS_H_
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#ifdef TENSORFLOW_USE_MPI
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#include <map>
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#include <string>
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#include <vector>
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#include "tensorflow/core/platform/logging.h"
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#include "tensorflow/core/lib/strings/str_util.h"
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// Skip MPI C++ bindings support, this matches the usage in other places
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#define OMPI_SKIP_MPICXX
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#include "third_party/mpi/mpi.h"
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#define MPI_CHECK(cmd) \
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do { \
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int mpi_errno = cmd; \
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if (MPI_SUCCESS != mpi_errno) { \
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fprintf(stderr, "[%s:%d] MPI call failed with %d \n", __FILE__, \
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__LINE__, mpi_errno); \
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exit(EXIT_FAILURE); \
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} \
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assert(MPI_SUCCESS == mpi_errno); \
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} while (false)
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namespace tensorflow {
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class MPIUtils {
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public:
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explicit MPIUtils(const std::string& worker_name);
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const int GetSourceID(const std::string& task_id) const {
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auto it = name_to_id_.find(task_id);
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if (it == name_to_id_.end()) {
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LOG(FATAL) << "Failed to convert worker name to MPI index: " << task_id;
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}
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return it->second;
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}
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private:
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void InitMPI();
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std::map<std::string, int> name_to_id_;
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};
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} // namespace tensorflow
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#endif // TENSORFLOW_USE_MPI
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#endif // TENSORFLOW_CONTRIB_MPI_MPI_UTILS_H_
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