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+Slurm's "srun" runs a given command (or script) on a reserved set of
+resources, ties stdout and stderr to those of the parent process, and
+exits with the exit code of the called script.
+e.g. you can do
+     srun make
+It's great for batch scripts that run on the frontend.
+The following script mimics that behavior with OAR:
+<code bash>
+#!/usr/bin/env bash
+#
+# Credits to Emmanuel Thomé and Pierre Neyron
+#
+# Usage: oarrun.sh [[oar args]] -- [[child command]]
+#
+# If no oar args are needed, oarrun.sh [[child command]] works.
+#
+# By default stdout and stderr are not saved (just printed), but that can
+# be adjusted with -O and -E.
+#
+# The command is run on $PWD remotely, at least if that directory exist.
+#
+# BUG: if $PWD does not exist remotely, the error message is totally
+# unhelpful, as the command complains about some /dev/cpuset being
+# absent. This is explained by the fact that the job is within its exit
+# sequence by the time we do oarsh.
+set -e
+oar_args=()
+child=()
+while [ $# -gt 0 ] ; do
+    if [ "$1" = "--" ] ; then shift; break; fi
+    oar_args=("${oar_args[@]}" "$1")
+    shift
+done
+if [ $# -eq 0 ] ; then
+    child=("${oar_args[@]}")
+    oar_args=()
+else
+    while [ $# -gt 0 ] ; do
+        if [ "$1" = "--" ] ; then shift; break; fi
+        child=("${child[@]}" "$1")
+        shift
+    done
+fi
+control=`mktemp -d /tmp/oarrun.XXXXXXXXXX`
+on_exit() {
+  [ -n "$OAR_JOB_ID" ] && oardel $OAR_JOB_ID
+  rm -rf $control
+}
+trap on_exit EXIT
+FIFO=$control/oarrun.fifo.$$
+NOTIFY_SCRIPT=$control/oarrun.notify.$$
+cat <<EOF > $NOTIFY_SCRIPT
+#!/bin/bash
+echo "\$@" > /dev/stderr
+echo "\$@" >> /tmp/oarlog
+echo \$1 > $FIFO
+EOF
+chmod 755 $NOTIFY_SCRIPT
+mkfifo $FIFO
+exec 3<>$FIFO
+# -O and -E can be overridden by the user in the oar_args
+oarsub -O /dev/null -E /dev/null "${oar_args[@]}" "sleep 99999d" --notify "[RUNNING]exec:$NOTIFY_SCRIPT"
+read -u 3 OAR_JOB_ID
+export OAR_JOB_ID
+echo "Job $OAR_JOB_ID is running."
+LEADER=$(oarstat -fj $OAR_JOB_ID | grep assigned_hostnames | cut -d\= -f2 | cut -d\+ -f1)
+# In the same way oarsub does, we expect oarrun to preserve the current
+# directory. Note that if $PWD does not exist remotely, oarsub will fail
+# miserably, and we have practically zero chance to survive, so trapping
+# errors is useless.
+#
+# The full oarsh command line is run as a bash command, so we're allowed
+# to put arbitrary bash code in there. And this is what we need to do if
+# we wish to avoid an extraneous level of quoting for command with
+# special characters (i.e. with this, oarrun.sh ls 'a\ b' works as
+# intended).
+oarsh -t $LEADER cd "$PWD" \; "${child[@]}"
+</code>