[gmx-users] error while running mdrun

Christopher Samuel samuel at unimelb.edu.au
Tue Dec 18 02:47:07 CET 2012


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On 17/12/12 21:57, ananyachatterjee wrote:

> [ganga:04205] *** Process received signal *** [ganga:04205] Signal:
> Segmentation fault (11) [ganga:04205] Signal code: Address not
> mapped (1) [ganga:04205] Failing at address: 0x201a01c20

Segmentation faults are usually bugs in the program where it is trying
to access memory it shouldn't be.  Very occasionally they can be
caused by hardware issues corrupting pointers, but usually it's just a
bug.

If, as Justin suggests, it's a problem in your simulation then I would
suggest that the program should detect it and tell you, not got off
into the weeds and trigger a condition that causes the OS kernel to
kill it with a SEGV.

Might be worth reporting a bug and seeing what the maintainers say.

cheers!
Chris (a sysadmin, not a scientist)
- -- 
 Christopher Samuel        Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: samuel at unimelb.edu.au Phone: +61 (0)3 903 55545
 http://www.vlsci.org.au/      http://twitter.com/vlsci

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