potential fixes

[simgrid.git] / src / smpi / colls / reduce-NTSL.c

diff --git a/src/smpi/colls/reduce-NTSL.c b/src/smpi/colls/reduce-NTSL.c
index 2bb714a192002d7b4a77112dfdaed1949ce8110a..f02a7fff8b95a4d186bba3e617e033a0a26b9e26 100644 (file)
--- a/src/smpi/colls/reduce-NTSL.c
+++ b/src/smpi/colls/reduce-NTSL.c
@@ -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;