X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/c7ce8ccc6a8a0c6096ba2cce7763cea1adc15fd1..5dd78326c18ad61561204c0d11470890cd12d091:/src/smpi/bindings/smpi_pmpi_request.cpp

diff --git a/src/smpi/bindings/smpi_pmpi_request.cpp b/src/smpi/bindings/smpi_pmpi_request.cpp
index 15092682d9..94bb62be2a 100644
--- a/src/smpi/bindings/smpi_pmpi_request.cpp
+++ b/src/smpi/bindings/smpi_pmpi_request.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007-2022. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2007-2023. 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. */
@@ -297,8 +297,7 @@ int PMPI_Bsend(const void* buf, int count, MPI_Datatype datatype, int dst, int t
   int bsend_buf_size = 0;
   void* bsend_buf = nullptr;
   smpi_process()->bsend_buffer(&bsend_buf, &bsend_buf_size);
-  int size = datatype->get_extent() * count;
-  if (bsend_buf == nullptr || bsend_buf_size < size + MPI_BSEND_OVERHEAD)
+  if (bsend_buf == nullptr || bsend_buf_size < datatype->get_extent() * count + MPI_BSEND_OVERHEAD)
     return MPI_ERR_BUFFER;
   TRACE_smpi_comm_in(my_proc_id, __func__,
                      new simgrid::instr::Pt2PtTIData("bsend", MPI_COMM_WORLD->group()->rank(dst_traced),
@@ -322,8 +321,7 @@ int PMPI_Ibsend(const void* buf, int count, MPI_Datatype datatype, int dst, int
   int bsend_buf_size = 0;
   void* bsend_buf = nullptr;
   smpi_process()->bsend_buffer(&bsend_buf, &bsend_buf_size);
-  int size = datatype->get_extent() * count;
-  if (bsend_buf == nullptr || bsend_buf_size < size + MPI_BSEND_OVERHEAD)
+  if (bsend_buf == nullptr || bsend_buf_size < datatype->get_extent() * count + MPI_BSEND_OVERHEAD)
     return MPI_ERR_BUFFER;
   TRACE_smpi_comm_in(my_proc_id, __func__,
                      new simgrid::instr::Pt2PtTIData("ibsend", MPI_COMM_WORLD->group()->rank(trace_dst),
@@ -439,7 +437,10 @@ int PMPI_Sendrecv_replace(void* buf, int count, MPI_Datatype datatype, int dst,
   CHECK_BUFFER(1, buf, count, datatype)
 
   int size = datatype->get_extent() * count;
-  xbt_assert(size > 0);
+  if (size == 0)
+    return MPI_SUCCESS;
+  else if (size <0)
+    return MPI_ERR_ARG;
   std::vector<char> recvbuf(size);
   retval =
       MPI_Sendrecv(buf, count, datatype, dst, sendtag, recvbuf.data(), count, datatype, src, recvtag, comm, status);