Index: /issm/trunk-jpl/src/c/analyses/ad_core.cpp
===================================================================
--- /issm/trunk-jpl/src/c/analyses/ad_core.cpp	(revision 16228)
+++ /issm/trunk-jpl/src/c/analyses/ad_core.cpp	(revision 16229)
@@ -46,7 +46,9 @@
 
 			/*preliminary checks: */
-			femmodel->parameters->FindParam(&num_dependents,AutodiffNumDependentsEnum);
-			femmodel->parameters->FindParam(&num_independents,AutodiffNumIndependentsEnum);
-			if(!(num_dependents*num_independents)) return;
+			if (my_rank==0) {
+				femmodel->parameters->FindParam(&num_dependents,AutodiffNumDependentsEnum);
+				femmodel->parameters->FindParam(&num_independents,AutodiffNumIndependentsEnum);
+				if(!(num_dependents*num_independents)) return;
+			}
 
 			if(VerboseAutodiff())_printf0_("   start ad core\n");