nnet-update-parallel.h

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// nnet2/nnet-update-parallel.h

// Copyright 2012  Johns Hopkins University (author: Daniel Povey)

// See ../../COPYING for clarification regarding multiple authors
//
// 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
//
// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
// MERCHANTABLITY OR NON-INFRINGEMENT.
// See the Apache 2 License for the specific language governing permissions and
// limitations under the License.

#ifndef KALDI_NNET2_NNET_UPDATE_PARALLEL_H_
#define KALDI_NNET2_NNET_UPDATE_PARALLEL_H_

#include "nnet2/nnet-nnet.h"
#include "util/table-types.h"
#include "util/kaldi-semaphore.h"
#include "util/kaldi-thread.h"
#include "itf/options-itf.h"
#include "nnet2/nnet-update.h"

namespace kaldi {
namespace nnet2 {


double DoBackpropParallel(const Nnet &nnet,
                          int32 minibatch_size,
                          SequentialNnetExampleReader *example_reader,
                          double *tot_weight,
                          Nnet *nnet_to_update);


double DoBackpropParallel(const Nnet &nnet,
                          int32 minibatch_size,
                          int32 num_threads,
                          const std::vector<NnetExample> &examples,
                          double *num_frames,
                          Nnet *nnet_to_update);



inline double ComputeNnetObjfParallel(
    const Nnet &nnet,
    int32 minibatch_size,
    int32 num_threads,
    const std::vector<NnetExample> &examples,
    double *num_frames) {
  return DoBackpropParallel(nnet, minibatch_size, num_threads,
                            examples, num_frames, NULL);
}





} // namespace nnet2
} // namespace kaldi

#endif // KALDI_NNET2_NNET_UPDATE_PARALLEL_H_