#!/usr/bin/bash

# Each subjob runs for at most 1 minute.  In 1 minute, we will run
# exactly 2 iterations of our calculation.
#SBATCH --time=1

# Each subjob typically does 2 iterations, and we want 8 iterations, so
# we need 4 subjobs.  The array here has 4 elements (1 to 4 inclusive),
# of which at most 1 can run at a time (indicated by "%1").
#SBATCH --array=1-4%1

# Put the job ID in the checkpoint file name.
checkpoint_file=job-stringing-$SLURM_ARRAY_JOB_ID.ckp

# -N 8 -- number of iterations total
# -n 2 -- number of iterations in this subjob
# -c   -- path to checkpoint file
bash job-stringing-calculation.sh -N 8 -n 2 -c $checkpoint_file

# The job script always reaches this point.  At this point, we can be
# sure that:
#
# * we've done another 2 iterations of our calculation; and
#
# * maybe we've reached iteration #8, and also the end of the of the
#   array job.