X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/89e44dce958ad9625570b126f11d299b829d4932..1faf1e4ac5d8295ab562c45a5507a471ad4540a6:/src/smpi/colls/reduce-scatter-gather.c?ds=sidebyside

diff --git a/src/smpi/colls/reduce-scatter-gather.c b/src/smpi/colls/reduce-scatter-gather.c
index fd1c5dccc9..24ad911264 100644
--- a/src/smpi/colls/reduce-scatter-gather.c
+++ b/src/smpi/colls/reduce-scatter-gather.c
@@ -10,12 +10,12 @@ int smpi_coll_tuned_reduce_scatter_gather(void *sendbuf, void *recvbuf,
                                           MPI_Op op, int root, MPI_Comm comm)
 {
   MPI_Status status;
-  int comm_size, rank, type_size, pof2, rem, newrank;
+  int comm_size, rank, pof2, rem, newrank;
   int mask, *cnts, *disps, i, j, send_idx = 0;
   int recv_idx, last_idx = 0, newdst;
   int dst, send_cnt, recv_cnt, newroot, newdst_tree_root;
   int newroot_tree_root, new_count;
-  int tag = 4321;
+  int tag = COLL_TAG_REDUCE;
   void *send_ptr, *recv_ptr, *tmp_buf;
 
   cnts = NULL;
@@ -29,7 +29,6 @@ int smpi_coll_tuned_reduce_scatter_gather(void *sendbuf, void *recvbuf,
   comm_size = smpi_comm_size(comm);
 
   extent = smpi_datatype_get_extent(datatype);
-  type_size = smpi_datatype_size(datatype);
 
   /* find nearest power-of-two less than or equal to comm_size */
   pof2 = 1;
@@ -42,7 +41,7 @@ int smpi_coll_tuned_reduce_scatter_gather(void *sendbuf, void *recvbuf,
     send_ptr = (void *) xbt_malloc(new_count * extent);
     recv_ptr = (void *) xbt_malloc(new_count * extent);
     tmp_buf = (void *) xbt_malloc(new_count * extent);
-    memcpy(send_ptr, sendbuf, extent * new_count);
+    memcpy(send_ptr, sendbuf, extent * count);
 
     //if ((rank != root))
     smpi_mpi_sendrecv(send_ptr, new_count, datatype, rank, tag,