Add example periodic_sleeper.sh

This can be used as an template to create jobs which run periodically. Users should use this instead of cronjobs on the servers.

examples/jobs/periodic_sleeper.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+# This job script takes a nap for 10 seconds (or paramter $2) every 30 minutes (or paramter $1)
+
+# SGE options
+#$ -N PSleeper
+#$ -l scf=1M,mem=100M,h_vmem=100M
+#$ -q normal.q
+#$ -cwd
+
+# process args
+case "$1" in
+    -h)
+        echo "usage: $0 [-h | [-d] [T] [nap]]"
+        echo "periodically take a nap"
+        echo ""
+        echo "-h   print this help and exit"
+        echo "-d   print debug info"
+        echo "T    take a nap every T minutes (default: 30)"
+        echo "nap  take a nap for nap seconds (default: 10)"
+        exit 1
+        ;;
+    *)
+        debug=0
+        terse="-terse"
+        debug_flag=""
+        do_echo=0
+        T=30
+        nap=10
+        while (( "$#" )); do
+            case "$1" in
+                -d)
+                    debug=1
+                    terse=""
+                    debug_flag="-d"
+                    do_echo=1
+                    ;;
+                *)
+                    T=${1:-30}
+                    nap=${2:-10}
+                    break
+                    ;;
+            esac
+            shift
+        done
+        ;;
+esac
+
+# set other variables
+next=$(date -d "${T} minutes" +%Y%m%d%H%M)
+script=/opt/SGE/examples/jobs/periodic_sleeper.sh
+
+# output some informations
+if [ ${debug} -eq 1 ]; then
+    echo "T = ${T}, nap=${nap}"
+    echo "next run at ${next} (YYYYMMDDhhmm)"
+    echo "debug_flag = ${debug_flag}, do_echo = ${do_echo}"
+    echo ""
+fi
+
+# commands to run in Grid Engine
+/opt/SGE/examples/jobs/sleeper.sh ${nap} ${do_echo}
+
+# re-submit script to execute in T minutes
+jobid=$(qsub ${terse} -a ${next} ${script} ${debug_flag} ${T} ${nap})
+exit_code=$?
+if [ ${debug} -eq 1 ]; then
+    echo "${jobid}"
+fi
+if [ ${exit_code} -ne 0 ]; then
+    if [ ${debug} -eq 1 ]; then
+        echo "${jobid}"
+        echo "Ups, something went wrong, check output!"
+    fi
+    exit ${exit_code}
+fi

prolog.d/10-GPU_allocate.sh

@@ -35,7 +35,7 @@ function clean_up() {
 
 ### get requested number of GPU's
 # use hard resource list first
-NGPUS=$(qstat -j ${JOB_ID} | sed -n "s/hard resource_list:.*gpu=\([[:digit:]]\+\).*/\1/p")
+NGPUS=$(qstat -j ${JOB_ID} 2>/dev/null | sed -n "s/hard resource_list:.*gpu=\([[:digit:]]\+\).*/\1/p")
 # set NGPUS to zero if empty
 if [ -z "${NGPUS}" ] ; then
     NGPUS=0