// Determine how many times to repeat the '=' character.

int n_prefix = (63 - strlen(msg)) / 2;

int n_suffix = n_prefix;

if ((strlen(msg) % 2) == 0) ++n_suffix;

// Convert to uppercase.

std::string upper(msg);

std::transform(upper.begin(), upper.end(), upper.begin(), ::toupper);

// Add ===> <=== markers.

std::stringstream out;

out << ' ';

for (int i = 0; i < n_prefix; i++) out << '=';

out << "> " << upper << " <";

for (int i = 0; i < n_suffix; i++) out << '=';

// Print header based on verbosity level.

if (settings::verbosity >= level) {

std::cout << out.str() << std::endl << std::endl;

}

#ifdef OPENMC_MPI

std::vector<int64_t> temp(overlap_check_count);

int err = MPI_Reduce(temp.data(), overlap_check_count.data(),

overlap_check_count.size(), MPI_INT64_T, MPI_SUM, 0,

mpi::intracomm);

#endif

if (openmc_master) {

header("cell overlap check summary", 1);

std::cout << " Cell ID No. Overlap Checks\n";

std::vector<int32_t> sparse_cell_ids;

for (int i = 0; i < n_cells; i++) {

std::cout << " " << std::setw(8) << cells[i]->id_ << std::setw(17)

<< overlap_check_count[i] << "\n";

if (overlap_check_count[i] < 10) {

sparse_cell_ids.push_back(cells[i]->id_);

}

}

std::cout << "\n There were " << sparse_cell_ids.size()

<< " cells with less than 10 overlap checks\n";

for (auto id : sparse_cell_ids) {

std::cout << " " << id;

}

std::cout << "\n";

}