[Wien] Segmentation Fault in lapw0

[Sam Leitch]

Thanks for the suggestions, but those don't appear to be the problem.

I used the commandline interface of w2web to check the stack size. Both 
'ulimit' and 'ulimit -s' return unlimited every time I try it.
I tried run_lapw from a standard bash shell with 'ulimit -s unlimited' 
and it resulted in a segmentation fault as well.

I had compiled lapw0 -O0 before, but I tried recompiling everything to 
be sure. Same problem.

I'm pretty sure it's a compiler bug with large arrays. There's some 
posts on the intel forums of people who've had the same problem. They 
saw "Segmentation Fault" errors, not "Out of Memory" errors when 
creating large arrays, which looks more like a compiler error than a 
coding error.

I'm going to change paths and fight to get IFC 7.1 working with libc 2.3 
instead.

I'm still open for suggestion though.

Torsten Andersen wrote:

> Dear Sam,
>
> the problem is probably with your shell settings.
>
> in bash, you need to put (in the file where you defined WIENROOT - 
> .profile or .bash_profile, probably): ulimit -s unlimited
>
> in tcsh, you need to put (in .cshrc or .tcshrc - wherever WIENROOT is 
> set): limit stacksize unlimited
>
> If this doesn't help (log out and log in again for the settings to 
> take proper effect), you can try to recompile with "-O0" 
> (minus-the.letter.O-zero).
>
> Best regards,
> Torsten Andersen.



-- 
Sam Leitch
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Graduate Student
Department of Physics and Engineering Physics
University of Saskatchewan
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