X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/15badc71ce964f6dae6428c9a4c0198fad5d4936..158d49db67f6eabca7de5d4c8b44ffa9c9b946f6:/src/smpi/colls/reduce-NTSL.c

diff --git a/src/smpi/colls/reduce-NTSL.c b/src/smpi/colls/reduce-NTSL.c
index 5a3b8875c6..f02a7fff8b 100644
--- a/src/smpi/colls/reduce-NTSL.c
+++ b/src/smpi/colls/reduce-NTSL.c
@@ -10,7 +10,7 @@ int smpi_coll_tuned_reduce_NTSL(void *buf, void *rbuf, int count,
                                 MPI_Datatype datatype, MPI_Op op, int root,
                                 MPI_Comm comm)
 {
-  int tag = 50;
+  int tag = COLL_TAG_REDUCE;
   MPI_Status status;
   MPI_Request *send_request_array;
   MPI_Request *recv_request_array;
@@ -21,8 +21,8 @@ int smpi_coll_tuned_reduce_NTSL(void *buf, void *rbuf, int count,
   MPI_Aint extent;
   extent = smpi_datatype_get_extent(datatype);
 
-  rank = smpi_comm_rank(MPI_COMM_WORLD);
-  size = smpi_comm_size(MPI_COMM_WORLD);
+  rank = smpi_comm_rank(comm);
+  size = smpi_comm_size(comm);
 
   /* source node and destination nodes (same through out the functions) */
   int to = (rank - 1 + size) % size;