message: omp reduction
diff: @@ -253,7 +253,7 @@ void calculate_max_nonzeros_per_row(std::shared_ptr<const OmpExecutor> exec,
  const auto num_cols = source->get_size().num_cols;
  size_type max_nonzeros_per_row = 0;
  size_type num_nonzeros = 0;
  -#pragma omp parallel for
  +#pragma omp parallel for reduction(max : max_nonzeros_per_row)
  for (size_type row = 0; row < num_rows; ++row) {
  num_nonzeros = 0;
  for (size_type col = 0; col < num_cols; ++col) {
  