rextent = smpi_datatype_get_extent(rtype);
sextent = smpi_datatype_get_extent(stype);
int tag = COLL_TAG_ALLGATHER;
- MPI_Request request;
- MPI_Request rrequest_array[128];
- MPI_Status status;
int i, send_offset, recv_offset;
int intra_rank, inter_rank;
intra_rank = rank % NUM_CORE;
recv_offset = rank * rextent * rcount;
smpi_mpi_sendrecv(sbuf, scount, stype, rank, tag,
((char *) rbuf + recv_offset), rcount, rtype, rank, tag, comm,
- &status);
+ MPI_STATUS_IGNORE);
//gather to root of each SMP
smpi_mpi_sendrecv(sbuf, scount, stype, dst, tag,
((char *) rbuf + recv_offset), rcount, rtype, src, tag, comm,
- &status);
+ MPI_STATUS_IGNORE);
}
// root of each SMP
if (intra_rank == 0) {
+ MPI_Request *rrequest_array = xbt_new(MPI_Request, inter_comm_size - 1);
+ MPI_Request *srequest_array = xbt_new(MPI_Request, inter_comm_size - 1);
+
src = ((inter_rank - 1 + inter_comm_size) % inter_comm_size) * NUM_CORE;
dst = ((inter_rank + 1) % inter_comm_size) * NUM_CORE;
recv_offset =
((inter_rank - i - 1 +
inter_comm_size) % inter_comm_size) * NUM_CORE * sextent * scount;
- rrequest_array[i] = smpi_mpi_irecv((char *)rbuf+recv_offset, rcount * NUM_CORE, rtype, src, tag+i, comm);
+ rrequest_array[i] = smpi_mpi_irecv((char *)rbuf + recv_offset, rcount * NUM_CORE,
+ rtype, src, tag + i, comm);
}
// send first message
send_offset =
((inter_rank +
inter_comm_size) % inter_comm_size) * NUM_CORE * sextent * scount;
- smpi_mpi_isend((char *) rbuf + send_offset, scount * NUM_CORE, stype,
- dst, tag, comm);
+ srequest_array[0] = smpi_mpi_isend((char *)rbuf + send_offset, scount * NUM_CORE,
+ stype, dst, tag, comm);
// loop : recv-inter , send-inter, send-intra (linear-bcast)
for (i = 0; i < inter_comm_size - 2; i++) {
recv_offset =
((inter_rank - i - 1 +
inter_comm_size) % inter_comm_size) * NUM_CORE * sextent * scount;
- smpi_mpi_wait(&rrequest_array[i], &status);
- smpi_mpi_isend((char *) rbuf + recv_offset, scount * NUM_CORE, stype,
- dst, tag + i + 1, comm);
+ smpi_mpi_wait(&rrequest_array[i], MPI_STATUS_IGNORE);
+ srequest_array[i + 1] = smpi_mpi_isend((char *)rbuf + recv_offset, scount * NUM_CORE,
+ stype, dst, tag + i + 1, comm);
if (num_core_in_current_smp > 1) {
- request = smpi_mpi_isend((char *) rbuf + recv_offset, scount * NUM_CORE, stype,
- (rank + 1), tag + i + 1, comm);
+ smpi_mpi_send((char *)rbuf + recv_offset, scount * NUM_CORE,
+ stype, (rank + 1), tag + i + 1, comm);
}
}
inter_comm_size) % inter_comm_size) * NUM_CORE * sextent * scount;
//recv_offset = ((inter_rank + 1) % inter_comm_size) * NUM_CORE * sextent * scount;
//i=inter_comm_size-2;
- smpi_mpi_wait(&rrequest_array[i], &status);
+ smpi_mpi_wait(&rrequest_array[i], MPI_STATUS_IGNORE);
if (num_core_in_current_smp > 1) {
- request = smpi_mpi_isend((char *) rbuf + recv_offset, scount * NUM_CORE, stype,
- (rank + 1), tag + i + 1, comm);
+ smpi_mpi_send((char *)rbuf + recv_offset, scount * NUM_CORE,
+ stype, (rank + 1), tag + i + 1, comm);
}
+
+ smpi_mpi_waitall(inter_comm_size - 1, srequest_array, MPI_STATUSES_IGNORE);
+ xbt_free(rrequest_array);
+ xbt_free(srequest_array);
}
// last rank of each SMP
else if (intra_rank == (num_core_in_current_smp - 1)) {
recv_offset =
((inter_rank - i - 1 +
inter_comm_size) % inter_comm_size) * NUM_CORE * sextent * scount;
- request = smpi_mpi_irecv((char *) rbuf + recv_offset, (rcount * NUM_CORE), rtype,
- rank - 1, tag + i + 1, comm);
- smpi_mpi_wait(&request, &status);
+ smpi_mpi_recv((char *) rbuf + recv_offset, (rcount * NUM_CORE), rtype,
+ rank - 1, tag + i + 1, comm, MPI_STATUS_IGNORE);
}
}
// intermediate rank of each SMP
recv_offset =
((inter_rank - i - 1 +
inter_comm_size) % inter_comm_size) * NUM_CORE * sextent * scount;
- request = smpi_mpi_irecv((char *) rbuf + recv_offset, (rcount * NUM_CORE), rtype,
- rank - 1, tag + i + 1, comm);
- smpi_mpi_wait(&request, &status);
- request = smpi_mpi_isend((char *) rbuf + recv_offset, (scount * NUM_CORE), stype,
- (rank + 1), tag + i + 1, comm);
+ smpi_mpi_recv((char *) rbuf + recv_offset, (rcount * NUM_CORE), rtype,
+ rank - 1, tag + i + 1, comm, MPI_STATUS_IGNORE);
+ smpi_mpi_send((char *) rbuf + recv_offset, (scount * NUM_CORE), stype,
+ (rank + 1), tag + i + 1, comm);
}
}