./update-file-list.sh
qsub -l mem=512M,h_rt=1:00:00 -q killable.q,batch.q -t 1-`cat filelist.txt | wc -l`:1 job.sh

./update-file-list.sh
qsub -l mem=2G,h_rt=2:00:00 -q killable.q,batch.q -t 1-`cat filelist.txt | wc -l`:1 job.sh

Extend job mem limit and time length
Extend job mem limit and time length

As a precaution, the memory limit and time limit are extended
