MPI_Datatype datatype, int root,
MPI_Comm comm)
{
- int tag = COLL_TAG_BCAST;
+ int tag = -COLL_TAG_BCAST;
MPI_Status status;
MPI_Request request;
MPI_Request *send_request_array;
- rank = smpi_comm_rank(MPI_COMM_WORLD);
- size = smpi_comm_size(MPI_COMM_WORLD);
+ rank = smpi_comm_rank(comm);
+ size = smpi_comm_size(comm);
/* segment is segment size in number of elements (not bytes) */
while (sent_count < (size - 1)) {
for (i = 1; i < size; i++) {
- smpi_mpi_iprobe(i, MPI_ANY_TAG, MPI_COMM_WORLD, &flag_array[i],
+ smpi_mpi_iprobe(i, MPI_ANY_TAG, comm, &flag_array[i],
MPI_STATUSES_IGNORE);
}
/* message arrive */
if ((flag_array[i] == 1) && (already_sent[i] == 0)) {
- smpi_mpi_recv(temp_buf, 1, MPI_CHAR, i, tag, MPI_COMM_WORLD, &status);
+ smpi_mpi_recv(temp_buf, 1, MPI_CHAR, i, tag, comm, &status);
header_buf[header_index] = i;
header_index++;
sent_count++;
//iteration++;
//start = MPI_Wtime();
for (i = 1; i < size; i++) {
- smpi_mpi_iprobe(i, MPI_ANY_TAG, MPI_COMM_WORLD, &flag_array[i],
+ smpi_mpi_iprobe(i, MPI_ANY_TAG, comm, &flag_array[i],
&temp_status_array[i]);
}
//total = MPI_Wtime() - start;
for (i = 1; i < size; i++) {
/* message arrive */
if ((flag_array[i] == 1) && (already_sent[i] == 0)) {
- smpi_mpi_recv(&temp_buf[i], 1, MPI_CHAR, i, tag, MPI_COMM_WORLD,
+ smpi_mpi_recv(&temp_buf[i], 1, MPI_CHAR, i, tag, comm,
&status);
header_buf[header_index] = i;
header_index++;
} /* while loop */
for(i=0; i<size; i++)
- if(to_clean[i]!=0)smpi_mpi_recv(&temp_buf[i], 1, MPI_CHAR, i, tag, MPI_COMM_WORLD,
+ if(to_clean[i]!=0)smpi_mpi_recv(&temp_buf[i], 1, MPI_CHAR, i, tag, comm,
&status);
//total = MPI_Wtime() - start2;
//total *= 1000;