Chunk jobs so that they don't all execute at the same time

chunk_jobs.sh

N=4     # Chunk size
C=0     # Counter

for i in {1..12};
do
    # submitjob here...
    echo $i
  
    ((C=C+1))
    if [[ `expr $C % $N` == 0 ]]; then
        sleep 1s
    fi
done