Better error reporting.

Parallel/vtkMultiProcessController.cxx

@@ -53,10 +53,10 @@ protected:
   void operator=(const vtkMultiProcessControllerRMI&);
 };
 
-vtkCxxRevisionMacro(vtkMultiProcessControllerRMI, "1.14");
+vtkCxxRevisionMacro(vtkMultiProcessControllerRMI, "1.15");
 vtkStandardNewMacro(vtkMultiProcessControllerRMI);
 
-vtkCxxRevisionMacro(vtkMultiProcessController, "1.14");
+vtkCxxRevisionMacro(vtkMultiProcessController, "1.15");
 
 //----------------------------------------------------------------------------
 // An RMI function that will break the "ProcessRMIs" loop.
@@ -337,6 +337,7 @@ void vtkMultiProcessController::ProcessRMIs()
     if (!this->RMICommunicator->Receive(triggerMessage, 3, ANY_SOURCE, 
                                         RMI_TAG))
       {
+      vtkErrorMacro("Could not receive RMI trigger message.");
       break;
       }
     if (triggerMessage[1] > 0)
@@ -345,6 +346,7 @@ void vtkMultiProcessController::ProcessRMIs()
       if (!this->RMICommunicator->Receive((char*)(arg), triggerMessage[1], 
                                           triggerMessage[2], RMI_ARG_TAG))
         {
+        vtkErrorMacro("Could not receive RMI argument.");
         break;
         }
       }