aggregate bedpe memory issue

I am running the following on a cluster (allocating ~96GB to the Job):
clodius aggregate bedpe --assembly mm10 --chr1-col 1 --from1-col 2 --to1-col 3 --chr2-col 4 --from2-col 5 --to2-col 6 --chromosome chr22 GSM.bedpe
...where GSM.bedpe has the format:
chr start end chr start end
...and I am getting the following error:
slurmstepd: error : Exceeded step memory limit at some point.
So my question is: how much memory would be appropriate for a job like this? Or is there some other thing I am doing wrong?