From 954e38bebe5456e072f906a35f2a23b30bd651b5 Mon Sep 17 00:00:00 2001
From: paboyle <paboyle@ph.ed.ac.uk>
Date: Tue, 20 Mar 2018 18:16:15 +0000
Subject: [PATCH] Put a username in the path

---
 lib/communicator/SharedMemoryMPI.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/communicator/SharedMemoryMPI.cc b/lib/communicator/SharedMemoryMPI.cc
index 1fa84dfb..8eebdc0f 100644
--- a/lib/communicator/SharedMemoryMPI.cc
+++ b/lib/communicator/SharedMemoryMPI.cc
@@ -27,6 +27,7 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
 /*  END LEGAL */
 
 #include <Grid/GridCore.h>
+#include <pwd.h>
 
 namespace Grid { 
 
@@ -288,7 +289,8 @@ void GlobalSharedMemory::SharedMemoryAllocate(uint64_t bytes, int flags)
 	
       size_t size = bytes;
       
-      sprintf(shm_name,"/myGrid_mpi3_shm_%d_%d",WorldNode,r);
+      struct passwd *pw = getpwuid (getuid());
+      sprintf(shm_name,"/Grid_%s_mpi3_shm_%d_%d",pw->pw_name,WorldNode,r);
       
       shm_unlink(shm_name);
       int fd=shm_open(shm_name,O_RDWR|O_CREAT,0666);