Prevent the usage of stellar feedback over MPI.

README

@@ -34,6 +34,7 @@ Valid options are:
   -r                Continue using restart files.
   -s                Run with hydrodynamics.
   -S                Run with stars.
+  -b                Run with stars feedback.
   -t          {int} The number of threads to use on each MPI rank. Defaults to 1 if not specified.
   -T                Print timers every time-step.
   -v           [12] Increase the level of verbosity:

examples/main.c

@@ -507,6 +507,10 @@ int main(int argc, char *argv[]) {
     error("Cannot reconstruct m-poles every step over MPI (yet).");
 #endif
 
+#ifdef WITH_MPI
+  if (with_feedback) error("Can't run with feedback over MPI (yet).");
+#endif
+
 #if defined(WITH_MPI) && defined(HAVE_VELOCIRAPTOR)
   if (with_structure_finding && nr_nodes > 1)
     error("VEOCIraptor not yet enabled over MPI.");