[Clusterusers] breve segmentation faults on fly

[Wm. Josiah Erikson]

I actually removed those memory limits because I was troubleshooting 
something. The only node that still has a memory limit is the head node, 
at 500MB.

Which nodes is it dying on? Is it consistently some subset? There are 
currently four subsets of nodes that are identical to each other:

-compute-0-1 through compute-0-13
-compute-0-14 through compute-0-23
-compute-1-6, compute-1-7, and compute-1-9
-the rest of the compute-1-x

It's probably not anything to do with hardware, but if it was, it would 
probably consistently die on some subset of the nodes....

Just throwing out ideas.

    -Josiah



Lee Spector wrote:
>
> In the last couple of days I've been having a lot of my breve runs on 
> fly dying, after running correctly for a while, with the following in 
> their log files:
>
> /share/apps/breve/dev/bin/breve: line 13: 20607 Segmentation 
> fault      $DIRECTORY/breve_ex $*
>
> I don't think I've seen this previously. Could it be the new memory 
> allocation limits? Or something in a recent breve build? I guess it's 
> possible that it's ultimately due to a change in my code, but it's 
> hard for me to see how -- I've changed little and what I've changed 
> seems harmless.
>
> I'm not sure what that "line 13" is line 13 of -- couldn't be my 
> simulation source, since that's just a @define ...
>
> Hitting a hard memory limit -- perhaps what Josiah recently set up -- 
> makes sense to me, though I'm not sure how to verify it after the fact...
>
> Any other ideas?
>
> Thanks,
>
>  -Lee
>
>
>
> -- 
> Lee Spector, Professor of Computer Science
> School of Cognitive Science, Hampshire College
> 893 West Street, Amherst, MA 01002-3359
> lspector at hampshire.edu, http://hampshire.edu/lspector/
> Phone: 413-559-5352, Fax: 413-559-5438
>
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-- 
Wm. Josiah Erikson
Computing Support
School of Cognitive Science
Hampshire College
Amherst, MA 01002
(413) 559-6091