From: Martin Quinson <martin.quinson@ens-rennes.fr>
Date: Tue, 12 Jan 2021 10:53:13 +0000 (+0100)
Subject: More informative error message when running code compiled with mpicc
X-Git-Tag: v3.27~574^2^2~5
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/cb35c761d2d6ae9cf1208694ce0e1ffc9ea321ba?ds=sidebyside

More informative error message when running code compiled with mpicc
---

diff --git a/src/smpi/internals/smpi_global.cpp b/src/smpi/internals/smpi_global.cpp
index 34f2b68270..749fd2f046 100644
--- a/src/smpi/internals/smpi_global.cpp
+++ b/src/smpi/internals/smpi_global.cpp
@@ -497,8 +497,10 @@ static void smpi_init_privatization_dlopen(const std::string& executable)
         for (const std::string& target_lib : target_libs)
           unlink(target_lib.c_str());
       }
-      xbt_assert(handle != nullptr, "dlopen failed: %s (errno: %d -- %s)", dlerror(), saved_errno,
-                 strerror(saved_errno));
+      xbt_assert(handle != nullptr,
+                 "dlopen failed: %s (errno: %d -- %s).\nError: Did you compile the program with a SMPI-specific "
+                 "compiler (spmicc or friends)?",
+                 dlerror(), saved_errno, strerror(saved_errno));
 
       smpi_entry_point_type entry_point = smpi_resolve_function(handle);
       xbt_assert(entry_point, "Could not resolve entry point");