X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7ce270272856fcab2790a35bcefb9d6e0fb52423..954676b700e711f38ec4d286d33d5427d3f4ca46:/src/smpi/colls/alltoall-ring.c

diff --git a/src/smpi/colls/alltoall-ring.c b/src/smpi/colls/alltoall-ring.c
index e5e4e2b84b..af1cdbfb81 100644
--- a/src/smpi/colls/alltoall-ring.c
+++ b/src/smpi/colls/alltoall-ring.c
@@ -1,4 +1,10 @@
-#include "colls.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. */
+
+#include "colls_private.h"
 /*****************************************************************************
 
  * Function: alltoall_ring
@@ -20,34 +26,34 @@
 
  ****************************************************************************/
 int
-smpi_coll_tuned_alltoall_ring(void * send_buff, int send_count, MPI_Datatype send_type,
-	      void * recv_buff, int recv_count, MPI_Datatype recv_type,
-	      MPI_Comm comm)
+smpi_coll_tuned_alltoall_ring(void *send_buff, int send_count,
+                              MPI_Datatype send_type, void *recv_buff,
+                              int recv_count, MPI_Datatype recv_type,
+                              MPI_Comm comm)
 {
   MPI_Status s;
   MPI_Aint send_chunk, recv_chunk;
   int i, src, dst, rank, num_procs;
-  int tag = 1, success = 1; /*, failure = 0, pof2 = 1*/;
+  int tag = COLL_TAG_ALLTOALL;
+
+  char *send_ptr = (char *) send_buff;
+  char *recv_ptr = (char *) recv_buff;
 
-  char * send_ptr = (char *) send_buff;
-  char * recv_ptr = (char *) recv_buff;
-  
-  MPI_Comm_rank(comm, &rank);
-  MPI_Comm_size(comm, &num_procs);
-  MPI_Type_extent(send_type, &send_chunk);
-  MPI_Type_extent(recv_type, &recv_chunk);
+  rank = smpi_comm_rank(comm);
+  num_procs = smpi_comm_size(comm);
+  send_chunk = smpi_datatype_get_extent(send_type);
+  recv_chunk = smpi_datatype_get_extent(recv_type);
 
   send_chunk *= send_count;
-  recv_chunk *= recv_count;  
-
-  for (i = 0; i < num_procs; i++)
-    {
-      src = (rank - i + num_procs) % num_procs;
-      dst = (rank + i) % num_procs;
-      
-      MPI_Sendrecv(send_ptr + dst * send_chunk, send_count, send_type, dst,
-		   tag, recv_ptr + src * recv_chunk, recv_count, recv_type,
-		   src, tag, comm, &s);
-    }
-  return success;
+  recv_chunk *= recv_count;
+
+  for (i = 0; i < num_procs; i++) {
+    src = (rank - i + num_procs) % num_procs;
+    dst = (rank + i) % num_procs;
+
+    smpi_mpi_sendrecv(send_ptr + dst * send_chunk, send_count, send_type, dst,
+                 tag, recv_ptr + src * recv_chunk, recv_count, recv_type,
+                 src, tag, comm, &s);
+  }
+  return MPI_SUCCESS;
 }