X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/d656f9465e7b1c36319f86eeafdcec58fe9551a4..f89671e0bd7450461d70d5ced6079123e73c2a63:/src/smpi/colls/allreduce/allreduce-rdb.cpp

diff --git a/src/smpi/colls/allreduce/allreduce-rdb.cpp b/src/smpi/colls/allreduce/allreduce-rdb.cpp
index a7ee1d169d..ba19511b29 100644
--- a/src/smpi/colls/allreduce/allreduce-rdb.cpp
+++ b/src/smpi/colls/allreduce/allreduce-rdb.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2013-2017. The SimGrid Team.
+/* Copyright (c) 2013-2019. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
@@ -8,14 +8,13 @@
 //#include <star-reduction.c>
 namespace simgrid{
 namespace smpi{
-int Coll_allreduce_rdb::allreduce(void *sbuff, void *rbuff, int count,
+int Coll_allreduce_rdb::allreduce(const void *sbuff, void *rbuff, int count,
                                   MPI_Datatype dtype, MPI_Op op, MPI_Comm comm)
 {
   int nprocs, rank, tag = COLL_TAG_ALLREDUCE;
   int mask, dst, pof2, newrank, rem, newdst;
   MPI_Aint extent, lb;
   MPI_Status status;
-  void *tmp_buf = NULL;
   /*
      #ifdef MPICH2_REDUCTION
      MPI_User_function * uop = MPIR_Op_table[op % 16 - 1];
@@ -30,7 +29,7 @@ int Coll_allreduce_rdb::allreduce(void *sbuff, void *rbuff, int count,
   rank=comm->rank();
 
   dtype->extent(&lb, &extent);
-  tmp_buf = (void *) smpi_get_tmp_sendbuffer(count * extent);
+  unsigned char* tmp_buf = smpi_get_tmp_sendbuffer(count * extent);
 
   Request::sendrecv(sbuff, count, dtype, rank, 500,
                rbuff, count, dtype, rank, 500, comm, &status);
@@ -56,7 +55,7 @@ int Coll_allreduce_rdb::allreduce(void *sbuff, void *rbuff, int count,
       Request::send(rbuff, count, dtype, rank + 1, tag, comm);
 
       // temporarily set the rank to -1 so that this
-      // process does not pariticipate in recursive
+      // process does not participate in recursive
       // doubling
       newrank = -1;
     } else                      // odd
@@ -100,7 +99,7 @@ int Coll_allreduce_rdb::allreduce(void *sbuff, void *rbuff, int count,
       // recvbuf contains data accumulated so far
 
       // op is commutative OR the order is already right
-      // we assume it is commuttive op
+      // we assume it is commutative op
       //      if (op -> op_commute  || (dst < rank))
       if ((dst < rank)) {
         if(op!=MPI_OP_NULL) op->apply( tmp_buf, rbuff, &count, dtype);