get_accumulate: if MPI_NO_OP is specified, origin* inputs are irrelevant

[simgrid.git] / src / smpi / bindings / smpi_pmpi_win.cpp

diff --git a/src/smpi/bindings/smpi_pmpi_win.cpp b/src/smpi/bindings/smpi_pmpi_win.cpp
index c560666..15e008f 100644 (file)
--- a/src/smpi/bindings/smpi_pmpi_win.cpp
+++ b/src/smpi/bindings/smpi_pmpi_win.cpp
@@ -324,11 +324,13 @@ int PMPI_Raccumulate(const void *origin_addr, int origin_count, MPI_Datatype ori
 int PMPI_Get_accumulate(const void *origin_addr, int origin_count, MPI_Datatype origin_datatype, void *result_addr,
 int result_count, MPI_Datatype result_datatype, int target_rank, MPI_Aint target_disp, int target_count,
 MPI_Datatype target_datatype, MPI_Op op, MPI_Win win){
-  CHECK_COUNT(2, origin_count)
-  if(origin_count>0)
-    CHECK_TYPE(3, origin_datatype)
-  if (op != MPI_NO_OP)
+
+  if (op != MPI_NO_OP){
     CHECK_BUFFER(1, origin_addr, origin_count, origin_datatype)
+    CHECK_COUNT(2, origin_count)
+    if(origin_count>0)
+      CHECK_TYPE(3, origin_datatype)
+  }
   CHECK_COUNT(5, result_count)
   CHECK_TYPE(6, result_datatype)
   CHECK_BUFFER(4, result_addr, result_count, result_datatype)
@@ -366,9 +368,12 @@ int result_count, MPI_Datatype result_datatype, int target_rank, MPI_Aint target
 MPI_Datatype target_datatype, MPI_Op op, MPI_Win win, MPI_Request* request){
   if(target_rank==MPI_PROC_NULL)
     *request = MPI_REQUEST_NULL;
-  CHECK_COUNT(2, origin_count)
-  CHECK_TYPE(3, origin_datatype)
-  CHECK_BUFFER(1, origin_addr, origin_count, origin_datatype)
+  if (op != MPI_NO_OP){
+    CHECK_BUFFER(1, origin_addr, origin_count, origin_datatype)
+    CHECK_COUNT(2, origin_count)
+    if(origin_count>0)
+      CHECK_TYPE(3, origin_datatype)
+  }
   CHECK_COUNT(5, result_count)
   CHECK_TYPE(6, result_datatype)
   CHECK_BUFFER(4, result_addr, result_count, result_datatype)