one should do it in a correct way: only do a comm().sum, min, max operation if...

one should do it in a correct way: only do a comm().sum, min, max operation if more than one process is involved. Removes mysterious bug if cmake build is used.

git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@5289 2fb0f335-1f38-0410-981e-8018bf24f1b0

dumux/boxmodels/2p2c/2p2cmodel.hh

@@ -208,7 +208,7 @@ public:
                 dest += this->localResidual().residual(i);
         };
 
-        if (gridView_().comm().size() > 1)
+        if (this->gridView_().comm().size() > 1)
         	this->gridView_().comm().sum(dest);
     }
 
@@ -581,7 +581,7 @@ public:
         // make sure that if there was a variable switch in an
         // other partition we will also set the switch flag
         // for our partition.
-        if (gridView_().comm().size() > 1)
+        if (this->gridView_().comm().size() > 1)
         	wasSwitched = this->gridView_().comm().max(wasSwitched);
 
         setSwitched_(wasSwitched);