message: Perform cumulation before adding bias.
diff: @@ -73,10 +73,12 @@ void PortableMatrixBatchVectorMultiplyAccumulate(const float* matrix,
  for (int b = 0; b < n_batch; b++) {
  const float* matrix_ptr = matrix;
  for (int r = 0; r < m_rows; r++) {
  + float dot_prod = 0.0f;
  const float* vector_in_batch = vector + b * m_cols;
  for (int c = 0; c < m_cols; c++) {
  - *result_in_batch += *matrix_ptr++ * *vector_in_batch++;
  + dot_prod += *matrix_ptr++ * *vector_in_batch++;
  }
  + *result_in_batch += dot_prod;
  result_in_batch += result_stride;
  }
  }
  