/** Program start */
int main(int argc, char *argv[]) {
  int rank = 0;
  int np = 0;
  char hostname[MPI_MAX_PROCESSOR_NAME + 1];
  int namelen = 0;

  MPI_Init(&argc, &argv); /* starts MPI */
  MPI_Comm_rank(MPI_COMM_WORLD, &rank); /* Get process id */
  MPI_Comm_size(MPI_COMM_WORLD, &np); /* Get number of processes */
  MPI_Get_processor_name(hostname, &namelen); /* Get hostname of node */
  printf("[Using Host:%s -- Rank %d out of %d]\n", hostname, rank, np);

  /* These tests use 16 processes */
  if (np != 16) {
    printf("Error: np=%d. Please use 16 processes\n", np);
  }

  /** Test different sizes */
  exit_on_fail( random_matrix_test(16, 16, 16, 4, 4, 1));
  exit_on_fail( random_matrix_test(32, 32, 32, 4, 4, 1));
  exit_on_fail( random_matrix_test(128, 128, 128, 4, 4, 1));

  /* Test different shapes */
  exit_on_fail( random_matrix_test(128, 32, 128, 4, 4, 1));
  exit_on_fail( random_matrix_test(64, 32, 128, 4, 4, 1));

  /* Test different process grids */
  exit_on_fail( random_matrix_test(128, 128, 128, 8, 2, 1));
  exit_on_fail( random_matrix_test(128, 128, 128, 2, 8, 1));
  exit_on_fail( random_matrix_test(128, 128, 128, 1, 16, 1));
  exit_on_fail( random_matrix_test(128, 128, 128, 16, 1, 1));

  finalize: MPI_Finalize();
  return 0;
}
Exemple #2
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int	main(int argc, char *argv[]) {
	random_matrix_test();
	return EXIT_SUCCESS;
}