-#include "colls.h"
-#include <math.h>
+/* 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. */
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_colls, smpi,
- "Logging specific to SMPI collectives");
+#include "colls_private.h"
+#include <math.h>
/*****************************************************************************
* Auther: Ahmad Faraj
****************************************************************************/
-int alltoall_check_is_2dmesh(int num, int *i, int *j)
+static int alltoall_check_is_2dmesh(int num, int *i, int *j)
{
int x, max = num / 2;
x = sqrt(num);
int smpi_coll_tuned_alltoall_2dmesh(void *send_buff, int send_count,
MPI_Datatype send_type,
void *recv_buff, int recv_count,
- MPI_Datatype recv_type,
- MPI_Comm comm)
+ MPI_Datatype recv_type, MPI_Comm comm)
{
MPI_Status *statuses, s;
MPI_Request *reqs, *req_ptr;;
char *tmp_buff1, *tmp_buff2;
int i, j, src, dst, rank, num_procs, count, num_reqs;
- int rows, cols, my_row, my_col, X, Y, send_offset, recv_offset;
- int two_dsize, my_row_base, my_col_base, src_row_base, block_size;
- int tag = 1, failure = 0, success = 1;
+ int X, Y, send_offset, recv_offset;
+ int my_row_base, my_col_base, src_row_base, block_size;
+ int tag = COLL_TAG_ALLTOALL;
- MPI_Comm_rank(comm, &rank);
- MPI_Comm_size(comm, &num_procs);
- MPI_Type_extent(send_type, &extent);
+ rank = smpi_comm_rank(comm);
+ num_procs = smpi_comm_size(comm);
+ extent = smpi_datatype_get_extent(send_type);
if (!alltoall_check_is_2dmesh(num_procs, &X, &Y))
- return failure;
-
- two_dsize = X * Y;
+ return MPI_ERR_OTHER;
my_row_base = (rank / Y) * Y;
my_col_base = rank % Y;
block_size = extent * send_count;
- tmp_buff1 = (char *) malloc(block_size * num_procs * Y);
- if (!tmp_buff1) {
- XBT_DEBUG("alltoall-2dmesh_shoot.c:88: cannot allocate memory");
- MPI_Finalize();
- exit(failure);
- }
-
- tmp_buff2 = (char *) malloc(block_size * Y);
- if (!tmp_buff2) {
- XBT_WARN("alltoall-2dmesh_shoot.c:88: cannot allocate memory");
- MPI_Finalize();
- exit(failure);
- }
-
-
+ tmp_buff1 = (char *) xbt_malloc(block_size * num_procs * Y);
+ tmp_buff2 = (char *) xbt_malloc(block_size * Y);
num_reqs = X;
if (Y > X)
num_reqs = Y;
- statuses = (MPI_Status *) malloc(num_reqs * sizeof(MPI_Status));
- reqs = (MPI_Request *) malloc(num_reqs * sizeof(MPI_Request));
- if (!reqs) {
- XBT_WARN("alltoall-2dmesh_shoot.c:88: cannot allocate memory");
- MPI_Finalize();
- exit(failure);
- }
+ statuses = (MPI_Status *) xbt_malloc(num_reqs * sizeof(MPI_Status));
+ reqs = (MPI_Request *) xbt_malloc(num_reqs * sizeof(MPI_Request));
req_ptr = reqs;
- send_offset = recv_offset = (rank % Y) * block_size * num_procs;
-
count = send_count * num_procs;
for (i = 0; i < Y; i++) {
continue;
recv_offset = (src % Y) * block_size * num_procs;
- MPI_Irecv(tmp_buff1 + recv_offset, count, recv_type, src, tag, comm,
- req_ptr++);
+ *(req_ptr++) = smpi_mpi_irecv(tmp_buff1 + recv_offset, count, recv_type, src, tag, comm);
}
for (i = 0; i < Y; i++) {
dst = i + my_row_base;
if (dst == rank)
continue;
- MPI_Send(send_buff, count, send_type, dst, tag, comm);
+ smpi_mpi_send(send_buff, count, send_type, dst, tag, comm);
}
- MPI_Waitall(Y - 1, reqs, statuses);
+ smpi_mpi_waitall(Y - 1, reqs, statuses);
req_ptr = reqs;
for (i = 0; i < Y; i++) {
recv_offset = (my_row_base * block_size) + (i * block_size);
if (i + my_row_base == rank)
- MPI_Sendrecv(send_buff + recv_offset, send_count, send_type,
- rank, tag, recv_buff + recv_offset, recv_count,
- recv_type, rank, tag, comm, &s);
+ smpi_mpi_sendrecv((char *) send_buff + recv_offset, send_count, send_type,
+ rank, tag,
+ (char *) recv_buff + recv_offset, recv_count, recv_type,
+ rank, tag, comm, &s);
else
- MPI_Sendrecv(tmp_buff1 + send_offset, send_count, send_type,
+ smpi_mpi_sendrecv(tmp_buff1 + send_offset, send_count, send_type,
rank, tag,
- recv_buff + recv_offset, recv_count, recv_type,
+ (char *) recv_buff + recv_offset, recv_count, recv_type,
rank, tag, comm, &s);
}
continue;
src_row_base = (src / Y) * Y;
- MPI_Irecv(recv_buff + src_row_base * block_size, recv_count * Y,
- recv_type, src, tag, comm, req_ptr++);
+ *(req_ptr++) = smpi_mpi_irecv((char *) recv_buff + src_row_base * block_size, recv_count * Y,
+ recv_type, src, tag, comm);
}
for (i = 0; i < X; i++) {
send_offset = (dst + j * num_procs) * block_size;
if (j + my_row_base == rank)
- MPI_Sendrecv(send_buff + dst * block_size, send_count, send_type,
- rank, tag,
- tmp_buff2 + recv_offset, recv_count, recv_type,
- rank, tag, comm, &s);
+ smpi_mpi_sendrecv((char *) send_buff + dst * block_size, send_count,
+ send_type, rank, tag, tmp_buff2 + recv_offset, recv_count,
+ recv_type, rank, tag, comm, &s);
else
- MPI_Sendrecv(tmp_buff1 + send_offset, send_count, send_type,
+ smpi_mpi_sendrecv(tmp_buff1 + send_offset, send_count, send_type,
rank, tag,
tmp_buff2 + recv_offset, recv_count, recv_type,
rank, tag, comm, &s);
recv_offset += block_size;
}
- MPI_Send(tmp_buff2, send_count * Y, send_type, dst, tag, comm);
+ smpi_mpi_send(tmp_buff2, send_count * Y, send_type, dst, tag, comm);
}
- MPI_Waitall(X - 1, reqs, statuses);
+ smpi_mpi_waitall(X - 1, reqs, statuses);
free(reqs);
free(statuses);
free(tmp_buff1);
free(tmp_buff2);
- return success;
+ return MPI_SUCCESS;
}
