[SMPI] Added 2 FIXME's for PMPI_Is_thread_main()

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

diff --git a/src/smpi/bindings/smpi_pmpi.cpp b/src/smpi/bindings/smpi_pmpi.cpp
index d76cad3..c8129b9 100644 (file)
--- a/src/smpi/bindings/smpi_pmpi.cpp
+++ b/src/smpi/bindings/smpi_pmpi.cpp
@@ -84,7 +84,7 @@ int PMPI_Get_library_version (char *version,int *len){
   return MPI_SUCCESS;
 }
 
-int PMPI_Init_thread(int *argc, char ***argv, int required, int *provided)
+int PMPI_Init_thread(int* argc, char*** argv, int /*required*/, int* provided)
 {
   if (provided != nullptr) {
     *provided = MPI_THREAD_SINGLE;
@@ -104,15 +104,18 @@ int PMPI_Query_thread(int *provided)
 
 int PMPI_Is_thread_main(int *flag)
 {
+  // FIXME: The MPI standard seems to say that fatal errors need to be triggered
+  // if MPI has been finalized or not yet been initialized
   if (flag == nullptr) {
     return MPI_ERR_ARG;
   } else {
-    *flag = smpi_process()->index() == 0;
+    *flag = smpi_process()->index() == 0; // FIXME: I don't think this is correct: This just returns true if the process ID is 1,
+                                          // regardless of whether this process called MPI_Thread_Init() or not.
     return MPI_SUCCESS;
   }
 }
 
-int PMPI_Abort(MPI_Comm comm, int errorcode)
+int PMPI_Abort(MPI_Comm /*comm*/, int /*errorcode*/)
 {
   smpi_bench_end();
   // FIXME: should kill all processes in comm instead
@@ -182,7 +185,8 @@ int PMPI_Initialized(int* flag) {
    return MPI_SUCCESS;
 }
 
-int PMPI_Alloc_mem(MPI_Aint size, MPI_Info info, void *baseptr){
+int PMPI_Alloc_mem(MPI_Aint size, MPI_Info /*info*/, void* baseptr)
+{
   void *ptr = xbt_malloc(size);
   if(ptr==nullptr)
     return MPI_ERR_NO_MEM;