Created
May 9, 2015 20:51
-
-
Save tcooper/fe1d039e45f2102d728e to your computer and use it in GitHub Desktop.
Remove a single node of 'matchable' Slurm nodelist from a Slurm reservation with SPEC_NODES specified
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/sh | |
EXPECTED_ARGS=2 | |
E_BADARGS=65 | |
if [ $# -ne $EXPECTED_ARGS ] | |
then | |
echo "Usage: `basename $0` {reservationname} {nodelist}" | |
exit $E_BADARGS | |
fi | |
RESERVATION_NAME=$1 | |
NODELIST_TO_REMOVE=$2 | |
if [ ${#NODELIST_TO_REMOVE} -lt 11 ] | |
then | |
echo "{nodelist} must contain at least one node" | |
exit $E_BADARGS | |
fi | |
LOCKDIR=/tmp/${RESERVATION_NAME}-mutex | |
if mkdir "${LOCKDIR}" &>/dev/null; then | |
RESERVATION_NAME_ESCAPED=$(echo $RESERVATION_NAME | sed 's/\-/\\-/g') | |
RES_NODELIST=$(sinfo -T | egrep "^${RESERVATION_NAME_ESCAPED} " | awk '{print $6}') | |
echo "NODELIST_TO_MODIFY = $RES_NODELIST" | |
echo "NODELIST_TO_REMOVE = $NODELIST_TO_REMOVE" | |
# If the nodelist in the reservation is changed by another process | |
# at this point on we'll screw things up... | |
#/bin/sleep 10 | |
NODELIST_TO_REMOVE_ESCAPED=$(echo $NODELIST_TO_REMOVE | sed 's/\[/\\[/g;s/\]/\\]/g') | |
RES_NODELIST_BY_NODELIST=$(echo $RES_NODELIST | /bin/sed 's/,c/ c/g') | |
COMPOUND_NODELIST="" | |
this_nl=$(mktemp) | |
for CURRENT_NODELIST in ${RES_NODELIST_BY_NODELIST}; do | |
THIS_NODELIST=$(/usr/bin/scontrol show hostnames ${CURRENT_NODELIST} | sed 's/,c/\nc/g' | egrep -v ${NODELIST_TO_REMOVE_ESCAPED} > $this_nl; /usr/bin/scontrol show hostlistsorted ${this_nl}) | |
COMPOUND_NODELIST="${COMPOUND_NODELIST},${THIS_NODELIST}" | |
done | |
NEW_NODELIST=$(echo ${COMPOUND_NODELIST} | /usr/bin/tr -s ',' ',' | /bin/sed 's/^,//g;s/,$//g') | |
/bin/rm ${this_nl} | |
echo "NEW_NODELIST = ${NEW_NODELIST}" | |
/usr/bin/scontrol update reservationname=$RESERVATION_NAME Nodes=${NEW_NODELIST} | |
/bin/rmdir ${LOCKDIR} | |
else | |
# If we didn't get the lock what should we do... | |
exit 1 | |
fi | |
exit 0 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment