From 34e5eed83c1d4cd1db30b445a803b805a74bd48f Mon Sep 17 00:00:00 2001
From: sjplimp <sjplimp@f3b2605a-c512-4ea7-a41b-209d697bcdaa>
Date: Fri, 8 Nov 2013 16:50:09 +0000
Subject: [PATCH] git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@11001
 f3b2605a-c512-4ea7-a41b-209d697bcdaa

---
 src/neigh_list.cpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/neigh_list.cpp b/src/neigh_list.cpp
index c761509b29..24570258de 100644
--- a/src/neigh_list.cpp
+++ b/src/neigh_list.cpp
@@ -268,10 +268,13 @@ bigint NeighList::memory_usage()
   bytes += maxatoms * sizeof(int *);
 
   int nmypage = comm->nthreads;
-  for (int i = 0; i < nmypage; i++)
-    bytes += ipage[i].size();
-  
-  if (dnum) {
+
+  if (ipage) {
+    for (int i = 0; i < nmypage; i++)
+      bytes += ipage[i].size();
+  }
+
+  if (dnum && dpage) {
     for (int i = 0; i < nmypage; i++) {
       bytes += maxatoms * sizeof(double *);
       bytes += dpage[i].size();