Index: /issm/trunk/src/m/classes/public/process_solve_options.m
===================================================================
--- /issm/trunk/src/m/classes/public/process_solve_options.m	(revision 5028)
+++ /issm/trunk/src/m/classes/public/process_solve_options.m	(revision 5029)
@@ -36,6 +36,7 @@
 
 %  process qmu arguments
-outoptions.qmudir=getfieldvalue(options,'qmudir','qmu');  % qmudir =['qmu_' datestr(now,'yyyymmdd_HHMMSS')];
+outoptions.qmudir=getfieldvalue(options,'qmudir',['qmu' num2str(GetPid)]);  % qmudir =['qmu_' datestr(now,'yyyymmdd_HHMMSS')];
 outoptions.qmufile=getfieldvalue(options,'qmufile','qmu');% qmufile cannot be changed unless ????script.sh is also changed
+outoptions.overwrite=getfieldvalue(options,'overwrite','n');
 outoptions.ivar=getfieldvalue(options,'ivar',1);
 outoptions.iresp=getfieldvalue(options,'iresp',1);
Index: /issm/trunk/src/m/qmu/preqmu.m
===================================================================
--- /issm/trunk/src/m/qmu/preqmu.m	(revision 5028)
+++ /issm/trunk/src/m/qmu/preqmu.m	(revision 5029)
@@ -23,18 +23,11 @@
 
 %first create temporary directory in which we will work
-if exist(options.qmudir,'dir')
-    if ~isfield(options,'overwrite')
-		%if exist(options.qmudir)==7,
-		%	options.overwrite=input(['Overwrite existing ''' options.qmudir ''' directory? Y/N [N]: '], 's');
-		%else
-			options.overwrite='y';
-		%end
-
-    end
-    if strncmpi(options.overwrite,'y',1)
-        system(['rm -rf ' options.qmudir '/*']); 
-%    else
-%        error('Existing ''%s'' directory not overwritten.',qmudir);
-    end
+if strncmpi(options.overwrite,'y',1)
+	system(['rm -rf ' options.qmudir '/*']); 
+else
+	%does the directory exist? if so, then error out
+	if exist(options.qmudir)==7,
+		error('Existing ''%s'' directory, cannot overwrite. Specify ''overwrite'',''y'' option in solve arguments.',options.qmudir);
+	end
 end
 mkdir(options.qmudir)