Hi Chris, did you get anywhere with this request? We have tried a test PBS cluster and cannot get it to limit the execution size either, although we are still trying to get them to make this happen. Hi Barry, This is probably a Grid Engine issue; enforcing memory usage limits for the purpose of sending suspend/terminate signals etc. has long been part of the SGE feature set. You may want to post this message to the Grid Engine users mailing list: users at gridengine.sunsource.net to see if anyone else is doing memory limit enforcement on Mac OS X with SGE 6 I did a brief search through the open bug reports but did not see any open issues that match your problem. That said though, I've only seen jobs trip SGE queues into error state 'E' when the job itself failed in a spectacular manner. It's odd that it errors out several queues and the runs on a different box. If you are willing to share your test code I'd be interested in trying to replicate on one of the G5 clusters I have access to. Regards, Chris -- ------ Barry Mc Innes Email: Barry.J.McInnes at noaa.gov Phone: 303-4976231 FAX: 303-4977013 Smail: NOAA/CDC 325 Broadway R/CDC1 Boulder CO 80305 ------ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://bioinformatics.org/pipermail/bioclusters/attachments/20050307/23fb57ba/attachment.htm