From 9c29bb4224e350bf1e831d71cafbcf60cc571c4e Mon Sep 17 00:00:00 2001
From: pscrozi <pscrozi@f3b2605a-c512-4ea7-a41b-209d697bcdaa>
Date: Fri, 3 May 2013 22:53:32 +0000
Subject: [PATCH] git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@9805
 f3b2605a-c512-4ea7-a41b-209d697bcdaa

---
 src/MC/fix_gcmc.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/MC/fix_gcmc.cpp b/src/MC/fix_gcmc.cpp
index 7165ecd8b1..730800e67c 100644
--- a/src/MC/fix_gcmc.cpp
+++ b/src/MC/fix_gcmc.cpp
@@ -1015,7 +1015,7 @@ void FixGCMC::get_model_molecule()
   }
 
   natoms_per_molecule = 0;
-  MPI_Allreduce(&natoms_per_molecule_local,&natoms_per_molecule,1,MPI_INT,MPI_MAX,world);
+  MPI_Allreduce(&natoms_per_molecule_local,&natoms_per_molecule,1,MPI_INT,MPI_SUM,world);
 
   if (natoms_per_molecule == 0)
     error->all(FLERR,"Fix gcmc could not find any atoms in the user-supplied template molecule");