From 45588f3897ecadac96fd442e1c180576be4acc3c Mon Sep 17 00:00:00 2001
From: Erik Schnetter <schnetter@cct.lsu.edu>
Date: Sat, 2 Oct 2010 15:22:58 -0500
Subject: CarpetReduce: Correct weight calculation

---
 Carpet/CarpetReduce/src/mask_carpet.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'Carpet/CarpetReduce')

diff --git a/Carpet/CarpetReduce/src/mask_carpet.cc b/Carpet/CarpetReduce/src/mask_carpet.cc
index f176057e0..08c8e4a5c 100644
--- a/Carpet/CarpetReduce/src/mask_carpet.cc
+++ b/Carpet/CarpetReduce/src/mask_carpet.cc
@@ -234,7 +234,9 @@ namespace CarpetMask {
                    cctk_lsh[0],cctk_lsh[1],cctk_lsh[2])
           {
             int const ind = CCTK_GFINDEX3D (cctkGH, i, j, k);
-            iweight[ind] &= imask[ind];
+            if (imask[ind] != 0) {
+              iweight[ind] &= imask[ind];
+            }
           } LC_ENDLOOP3(CarpetMaskSetup_restriction_boundary_apply);
           
         } END_LOCAL_COMPONENT_LOOP;
-- 
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