AccumulateMultiThreadedClass Class Reference

Inheritance diagram for AccumulateMultiThreadedClass:

Collaboration diagram for AccumulateMultiThreadedClass:

Public Member Functions
	AccumulateMultiThreadedClass (const DiagGmm &diag_gmm, const MatrixBase< BaseFloat > &data, const VectorBase< BaseFloat > &frame_weights, AccumDiagGmm *accum, double *tot_like)
	AccumulateMultiThreadedClass (const AccumulateMultiThreadedClass &other)
void	operator() ()
	~AccumulateMultiThreadedClass ()
Public Member Functions inherited from MultiThreadable
virtual	~MultiThreadable ()

Private Attributes
const DiagGmm &	diag_gmm_
const MatrixBase< BaseFloat > &	data_
const VectorBase< BaseFloat > &	frame_weights_
AccumDiagGmm *	dest_accum_
AccumDiagGmm	accum_
double *	tot_like_ptr_
double	tot_like_

Additional Inherited Members
Public Attributes inherited from MultiThreadable
int32	thread_id_
int32	num_threads_

Detailed Description

Definition at line 486 of file mle-diag-gmm.cc.

Constructor & Destructor Documentation

AccumulateMultiThreadedClass() [1/2]

AccumulateMultiThreadedClass ( const DiagGmm &  diag_gmm, const MatrixBase< BaseFloat > &  data, const VectorBase< BaseFloat > &  frame_weights, AccumDiagGmm *  accum, double *  tot_like  )

inline

Definition at line 488 of file mle-diag-gmm.cc.

                                                :
      diag_gmm_(diag_gmm), data_(data),
      frame_weights_(frame_weights), dest_accum_(accum),
      tot_like_ptr_(tot_like), tot_like_(0.0) { }

AccumulateMultiThreadedClass() [2/2]

AccumulateMultiThreadedClass ( const AccumulateMultiThreadedClass &  other )

inline

Definition at line 496 of file mle-diag-gmm.cc.

References data_, and KALDI_ASSERT.

                                                                         :
    MultiThreadable(other),
    diag_gmm_(other.diag_gmm_), data_(other.data_),
    frame_weights_(other.frame_weights_), dest_accum_(other.dest_accum_),
    accum_(diag_gmm_, dest_accum_->Flags()), tot_like_ptr_(other.tot_like_ptr_),
    tot_like_(0.0) {
    KALDI_ASSERT(data_.NumRows() == frame_weights_.Dim());
  }

~AccumulateMultiThreadedClass()

~AccumulateMultiThreadedClass ( )

inline

Definition at line 520 of file mle-diag-gmm.cc.

                                  {
    if (accum_.Dim() != 0) { // if our accumulator is set up (this is not true
      // for the single object we use to initialize the others)
      dest_accum_->Add(1.0, accum_);
      *tot_like_ptr_ += tot_like_;
    }
  }

Member Function Documentation

operator()()

void operator() ( )

inlinevirtual

Implements MultiThreadable.

Definition at line 504 of file mle-diag-gmm.cc.

References data_, and KALDI_VLOG.

                      {
    int32 num_frames = data_.NumRows(), num_threads = num_threads_,
        block_size = (num_frames + num_threads - 1) / num_threads,
        block_start = block_size * thread_id_,
        block_end = std::min(num_frames, block_start + block_size);
    tot_like_ = 0.0;
    double tot_weight = 0.0;
    for (int32 t = block_start; t < block_end; t++) {
      tot_like_ += frame_weights_(t) *
          accum_.AccumulateFromDiag(diag_gmm_, data_.Row(t), frame_weights_(t));
      tot_weight += frame_weights_(t);
    }
    KALDI_VLOG(3) << "Thread " << thread_id_ << " saw average likeliood/frame "
                  << (tot_like_ / tot_weight) << " over " << tot_weight
                  << " (weighted) frames.";
  }

Member Data Documentation

accum_

AccumDiagGmm accum_

private

Definition at line 532 of file mle-diag-gmm.cc.

data_

const MatrixBase<BaseFloat>& data_

private

Definition at line 529 of file mle-diag-gmm.cc.

dest_accum_

AccumDiagGmm* dest_accum_

private

Definition at line 531 of file mle-diag-gmm.cc.

diag_gmm_

const DiagGmm& diag_gmm_

private

Definition at line 528 of file mle-diag-gmm.cc.

frame_weights_

const VectorBase<BaseFloat>& frame_weights_

private

Definition at line 530 of file mle-diag-gmm.cc.

tot_like_

double tot_like_

private

Definition at line 534 of file mle-diag-gmm.cc.

tot_like_ptr_

double* tot_like_ptr_

private

Definition at line 533 of file mle-diag-gmm.cc.

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The documentation for this class was generated from the following file:

• gmm/mle-diag-gmm.cc