Message Passing Interface: Difference between revisions

Revision as of 07:55, 20 September 2022

Revision as of 11:17, 26 September 2022

Line 250:

{

sprintf(buf, "Hello %i!", other_rank);

MPI_Send(buf, sizeof(buf)256, MPI_CHAR, other_rank,

0, MPI_COMM_WORLD);

}

Line 257:

for (other_rank = 1; other_rank < num_procs; other_rank++)

{

MPI_Recv(buf, sizeof(buf)256, MPI_CHAR, other_rank,

0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);

printf("%s\n", buf);

Line 265:

/* Receive message from process #0 */

MPI_Recv(buf, sizeof(buf)256, MPI_CHAR, 0,

0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);

assert(memcmp(buf, "Hello ", 6) == 0);

Line 271:

/* Send message to process #0 */

sprintf(buf, "Process %i reporting for duty.", my_rank);

MPI_Send(buf, sizeof(buf)256, MPI_CHAR, 0,

0, MPI_COMM_WORLD);