-#include "colls.h"
-#ifndef NUM_CORE
-#define NUM_CORE 8
-#endif
+/* Copyright (c) 2013-2014. The SimGrid Team.
+ * All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include "colls_private.h"
int smpi_coll_tuned_allgather_smp_simple(void *send_buf, int scount,
MPI_Datatype stype, void *recv_buf,
MPI_Comm comm)
{
int src, dst, comm_size, rank;
- MPI_Comm_size(comm, &comm_size);
- MPI_Comm_rank(comm, &rank);
+ comm_size = smpi_comm_size(comm);
+
+ if(smpi_comm_get_leaders_comm(comm)==MPI_COMM_NULL){
+ smpi_comm_init_smp(comm);
+ }
+ int num_core=1;
+ if (smpi_comm_is_uniform(comm)){
+ num_core = smpi_comm_size(smpi_comm_get_intra_comm(comm));
+ }
+
+ if(comm_size%num_core)
+ THROWF(arg_error,0, "allgather SMP simple algorithm can't be used with non multiple of NUM_CORE=%d number of processes ! ", num_core);
+
+ rank = smpi_comm_rank(comm);
MPI_Aint rextent, sextent;
- MPI_Type_extent(rtype, &rextent);
- MPI_Type_extent(stype, &sextent);
- int tag = 50;
+ rextent = smpi_datatype_get_extent(rtype);
+ sextent = smpi_datatype_get_extent(stype);
+ int tag = COLL_TAG_ALLGATHER;
MPI_Status status;
int i, send_offset, recv_offset;
int intra_rank, inter_rank;
- int num_core = NUM_CORE;
intra_rank = rank % num_core;
inter_rank = rank / num_core;
int inter_comm_size = (comm_size + num_core - 1) / num_core;
}
//INTRA-SMP-ALLGATHER
recv_offset = rank * rextent * rcount;
- MPI_Sendrecv(send_buf, scount, stype, rank, tag,
+ smpi_mpi_sendrecv(send_buf, scount, stype, rank, tag,
((char *) recv_buf + recv_offset), rcount, rtype, rank, tag,
comm, &status);
for (i = 1; i < num_core_in_current_smp; i++) {
(num_core_in_current_smp);
recv_offset = src * rextent * rcount;
- MPI_Sendrecv(send_buf, scount, stype, dst, tag,
+ smpi_mpi_sendrecv(send_buf, scount, stype, dst, tag,
((char *) recv_buf + recv_offset), rcount, rtype, src, tag,
comm, &status);
if (intra_rank == 0) {
MPI_Request *reqs, *req_ptr;
int num_req = (inter_comm_size - 1) * 2;
- reqs = (MPI_Request *) malloc(num_req * sizeof(MPI_Request));
+ reqs = (MPI_Request *) xbt_malloc(num_req * sizeof(MPI_Request));
req_ptr = reqs;
MPI_Status *stat;
- stat = (MPI_Status *) malloc(num_req * sizeof(MPI_Status));
+ stat = (MPI_Status *) xbt_malloc(num_req * sizeof(MPI_Status));
for (i = 1; i < inter_comm_size; i++) {
src = ((inter_rank - i + inter_comm_size) % inter_comm_size) * num_core;
//send_offset = (rank * sextent * scount);
recv_offset = (src * sextent * scount);
- // MPI_Sendrecv((recv_buf+send_offset), (scount * num_core), stype, dst, tag,
+ // smpi_mpi_sendrecv((recv_buf+send_offset), (scount * num_core), stype, dst, tag,
// (recv_buf+recv_offset), (rcount * num_core), rtype, src, tag, comm, &status);
//MPIC_Isend((recv_buf+send_offset), (scount * num_core), stype, dst, tag, comm, req_ptr++);
- MPI_Irecv(((char *) recv_buf + recv_offset), (rcount * num_core), rtype,
- src, tag, comm, req_ptr++);
+ *(req_ptr++) = smpi_mpi_irecv(((char *) recv_buf + recv_offset), (rcount * num_core), rtype,
+ src, tag, comm);
}
for (i = 1; i < inter_comm_size; i++) {
//src = ((inter_rank-i+inter_comm_size)%inter_comm_size) * num_core;
send_offset = (rank * sextent * scount);
//recv_offset = (src * sextent * scount);
- // MPI_Sendrecv((recv_buf+send_offset), (scount * num_core), stype, dst, tag,
+ // smpi_mpi_sendrecv((recv_buf+send_offset), (scount * num_core), stype, dst, tag,
// (recv_buf+recv_offset), (rcount * num_core), rtype, src, tag, comm, &status);
- MPI_Isend(((char *) recv_buf + send_offset), (scount * num_core), stype,
- dst, tag, comm, req_ptr++);
+ *(req_ptr++) = smpi_mpi_isend(((char *) recv_buf + send_offset), (scount * num_core), stype,
+ dst, tag, comm);
//MPIC_Irecv((recv_buf+recv_offset), (rcount * num_core), rtype, src, tag, comm, req_ptr++);
}
- MPI_Waitall(num_req, reqs, stat);
+ smpi_mpi_waitall(num_req, reqs, stat);
free(reqs);
free(stat);
if (intra_rank == 0) {
for (i = 1; i < num_core_in_current_smp; i++) {
//printf("rank = %d, num = %d send to %d\n",rank, num_core_in_current_smp, (rank + i));
- MPI_Send(recv_buf, (scount * comm_size), stype, (rank + i), tag, comm);
+ smpi_mpi_send(recv_buf, (scount * comm_size), stype, (rank + i), tag, comm);
}
} else {
//printf("rank = %d recv from %d\n",rank, (inter_rank * num_core));
- MPI_Recv(recv_buf, (rcount * comm_size), rtype, (inter_rank * num_core),
+ smpi_mpi_recv(recv_buf, (rcount * comm_size), rtype, (inter_rank * num_core),
tag, comm, &status);
}