[Dune] UG grid problem: ID overflow DDD_HdrConstructor

[Eike Mueller]

Hi Markus,

thanks a lot for the patch, unfortunately I still get a segfault when I run on HECToR.

Eike

Markus Blatt wrote:
> On Mon, Nov 26, 2012 at 10:57:41AM +0000, Eike Mueller wrote:
>> thank you very much for your replies. As my email says, I already
>> had a look at FS #250, and followed the instructions there, but this
>> does not help.
>>
> 
> Sorry, I overlooked that part in your original post.
> 
> Nevertheless, judging from ug/parallel/ddd/mgr/objmgr.c this seems to
> have no effect on the problem, as problem occurs in line 527
> (MakeUnique(theIdCount) <= MakeUnique(theIdCount-1), where theIdCount
> in my version is an int and MAX_PROCBITS_IN_GID is defined to 20
> according to your configuration. This leaves just 11 bits for the id.
> 
> Might this overrun in your case?
> 
> Maybe you can circumvent it with the attached (untested) patch?
> 
> Markus
> 
> 
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-- 
Dr Eike Mueller
Research Officer

Department of Mathematical Sciences
University of Bath
Bath BA2 7AY, United Kingdom

+44 1225 38 5633
e.mueller at bath.ac.uk
http://people.bath.ac.uk/em459/