leshantir

Hi there. My model is based on a vehicle assembly line and when running experiments I have kept all factors constant except for part entities per arrival. Up until a certain number (9 entities per arrival) the experiments run in a few minutes (with 10 replications) however anything greater than that causes the experiments to take hours to run just 1 replication. No warnings have come up for too many entities present in the system or anything like that. What could be the possible causes for this?