updated slurm epilog for X clean up

Former-commit-id: 1cd81921

roles/slurm-common/templates/slurm.epilog.j2

@@ -6,6 +6,24 @@ find /tmp -user ${SLURM_JOB_USER} -name ".esd-*" | xargs rm -rf
 find /tmp -user ${SLURM_JOB_USER} -name ".X*-lock" | xargs rm -rf
 find /tmp/.X11-unix -user ${SLURM_JOB_USER} -name "X*" | xargs rm -rf
 
+# NOTE: 20180316 The jobs above clean up the VNC session
+# further clean up for Strudel Session
+# X lock files are owned by root, so we need to find the right files to delete
+
+
+# New Strudel session will create a file under user's home folder called xorg-jobid
+# This file contains the display number that is assigned to xterm when it starts
+
+# Assigning variable and trimming the : from the display number
+XSESSION=`cat /home/${SLURM_JOB_USER}/.vnc/xorg-${SLURM_JOB_ID} | tr -d :`
+
+# Formatting the filenames for the two files that we need to clean: /tmp/.X*-lock and /tmp/.X11/X*
+XLOCKFILENAME=".X"$XSESSION"-lock"
+XUNIXFILENAME="X"$XSESSION
+
+# Find the files and delete them
+find /tmp/ -name $XLOCKFILENAME -exec rm -rf {} \;
+find /tmp/.X11-unix -name $XUNIXFILENAME -exec rm -rf {} \;
 
 # echo 1 to drop page cache
 /bin/sync