group = smpi_group_new(process_count);
MPI_COMM_WORLD = smpi_comm_new(group, nullptr);
MPI_Attr_put(MPI_COMM_WORLD, MPI_UNIVERSE_SIZE, reinterpret_cast<void *>(process_count));
group = smpi_group_new(process_count);
MPI_COMM_WORLD = smpi_comm_new(group, nullptr);
MPI_Attr_put(MPI_COMM_WORLD, MPI_UNIVERSE_SIZE, reinterpret_cast<void *>(process_count));