portability cheating: avoid the configurations that are known to be broken

[simgrid.git] / src / smpi / smpi_global.cpp

diff --git a/src/smpi/smpi_global.cpp b/src/smpi/smpi_global.cpp
index 39d769a..3770ba2 100644 (file)
--- a/src/smpi/smpi_global.cpp
+++ b/src/smpi/smpi_global.cpp
@@ -95,7 +95,10 @@ int smpi_process_count()
 
 simgrid::smpi::Process* smpi_process()
 {
-  simgrid::MsgActorExt* msgExt = static_cast<simgrid::MsgActorExt*>(SIMIX_process_self()->data);
+  smx_actor_t me = SIMIX_process_self();
+  if (me == nullptr) // This happens sometimes (eg, when linking against NS3 because it pulls openMPI...)
+    return nullptr;
+  simgrid::MsgActorExt* msgExt = static_cast<simgrid::MsgActorExt*>(me->data);
   return static_cast<simgrid::smpi::Process*>(msgExt->data);
 }
 
@@ -116,6 +119,14 @@ int smpi_process_index(){
   return smpi_process()->index();
 }
 
+void * smpi_process_get_user_data(){
+  return smpi_process()->get_user_data();
+}
+
+void smpi_process_set_user_data(void *data){
+  return smpi_process()->set_user_data(data);
+}
+
 
 int smpi_global_size()
 {
@@ -465,6 +476,13 @@ static void smpi_init_options(){
     else
       xbt_die("Invalid value for smpi/privatization: '%s'", smpi_privatize_option);
 
+#if defined(__FreeBSD__)
+    if (smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) {
+      XBT_INFO("Mixing mmap privatization is broken on FreeBSD, switching to dlopen privatization instead.");
+      smpi_privatize_global_variables = SMPI_PRIVATIZE_DLOPEN;
+    }
+#endif
+
     if (smpi_cpu_threshold < 0)
       smpi_cpu_threshold = DBL_MAX;
 
@@ -603,7 +621,8 @@ int smpi_main(const char* executable, int argc, char *argv[])
 
         // Load the copy and resolve the entry point:
         void* handle = dlopen(target_executable.c_str(), RTLD_LAZY | RTLD_LOCAL | RTLD_DEEPBIND);
-        unlink(target_executable.c_str());
+        if (xbt_cfg_get_boolean("smpi/keep-temps") == false)
+          unlink(target_executable.c_str());
         if (handle == nullptr)
           xbt_die("dlopen failed: %s (errno: %d -- %s)", dlerror(), errno, strerror(errno));
         smpi_entry_point_type entry_point = smpi_resolve_function(handle);