Fix dead assignments.

[simgrid.git] / src / smpi / colls / alltoall-2dmesh.c

diff --git a/src/smpi/colls/alltoall-2dmesh.c b/src/smpi/colls/alltoall-2dmesh.c
index 61ea21e..287014f 100644 (file)
--- a/src/smpi/colls/alltoall-2dmesh.c
+++ b/src/smpi/colls/alltoall-2dmesh.c
@@ -1,3 +1,9 @@
+/* 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"
 #include <math.h>
 
@@ -60,7 +66,7 @@ int smpi_coll_tuned_alltoall_2dmesh(void *send_buff, int send_count,
   int i, j, src, dst, rank, num_procs, count, num_reqs;
   int X, Y, send_offset, recv_offset;
   int my_row_base, my_col_base, src_row_base, block_size;
-  int tag = 1;
+  int tag = COLL_TAG_ALLTOALL;
 
   rank = smpi_comm_rank(comm);
   num_procs = smpi_comm_size(comm);
@@ -86,8 +92,6 @@ int smpi_coll_tuned_alltoall_2dmesh(void *send_buff, int send_count,
 
   req_ptr = reqs;
 
-  send_offset = recv_offset = (rank % Y) * block_size * num_procs;
-
   count = send_count * num_procs;
 
   for (i = 0; i < Y; i++) {