[Yt-svn] yt-commit r1025 - trunk/yt/extensions/lightcone

[britton at wrangler.dreamhost.com]

Author: britton
Date: Thu Dec 18 15:59:18 2008
New Revision: 1025
URL: http://yt.spacepope.org/changeset/1025

Log:
Fixed it so the mkdir process is only performed by the root grid to avoid 
nerds-stuck-in-the-doorway syndrome.


Modified:
   trunk/yt/extensions/lightcone/LightCone.py

Modified: trunk/yt/extensions/lightcone/LightCone.py
==============================================================================
--- trunk/yt/extensions/lightcone/LightCone.py	(original)
+++ trunk/yt/extensions/lightcone/LightCone.py	Thu Dec 18 15:59:18 2008
@@ -64,13 +64,14 @@
         self.pixels = int(self.lightConeParameters['FieldOfViewInArcMinutes'] * 60.0 / \
                               self.lightConeParameters['ImageResolutionInArcSeconds'])
 
-        # Create output directory.
-        if (os.path.exists(self.lightConeParameters['OutputDir'])):
-            if not(os.path.isdir(self.lightConeParameters['OutputDir'])):
-                mylog.error("Output directory exists, but is not a directory: %s." % self.lightConeParameters['OutputDir'])
-                self.lightConeParameters['OutputDir'] = './'
-        else:
-            os.mkdir(self.lightConeParameters['OutputDir'])
+        if ytcfg.getint("yt","__parallel_rank") == 0:
+            # Create output directory.
+            if (os.path.exists(self.lightConeParameters['OutputDir'])):
+                if not(os.path.isdir(self.lightConeParameters['OutputDir'])):
+                    mylog.error("Output directory exists, but is not a directory: %s." % self.lightConeParameters['OutputDir'])
+                    self.lightConeParameters['OutputDir'] = './'
+            else:
+                os.mkdir(self.lightConeParameters['OutputDir'])
 
         # Calculate redshifts for dt data dumps.
         if (self.enzoParameters.has_key('dtDataDump')):