[Dune] UG grid problem: ID overflow DDD_HdrConstructor

[Oliver Sander]

Hi Eike,
sorry for the late reply.  AFAIK replacing the id type is UG has hardly 
been tested,
and I am not surprised that people find bugs.  Can you please send me a test
program and I promise to have a look.
best,
Oliver

Am 23.11.2012 18:53, schrieb Eike Mueller:
> Dear dune-list,
>
> I'm having trouble with using the parallel DUNE grid, and I keep 
> getting the
>
> DDD [000] FATAL 02221: global ID overflow DDD_HdrConstructor
>
> error. My grid is not very large, I use 6*2^5 = 6144 elements on 6 
> processors. I had a look at Flyspray Task #250 [1], and followed the 
> instructions there, in particular I set -DDDD_GID_T=long and use 20 
> bits for the processor part (--with-ddd-maxprocbits=20). I recompiled 
> both UG and Dune (version 2.2) with these flags, and also recompiled 
> my own code with them. I checked that long is really 8 bytes (=64 
> byte) on the machine I'm using, but I still get the error.
> I generate the grid using the UG grid factory by reading from a .dgf 
> file with the attached classes.
> If I make the grid smaller, the problem eventually disappears but I 
> get a segmentation fault.
> I should also say that on a different machine, where I did not change 
> the maxprocbit and GID_T, it all works fine for small grids.
>
> Is there anything I might have overlooked? For example, do I have to 
> be careful with the datatypes I use when constructing the grid with 
> the factory?
>
> Thanks a lot,
>
> Eike
>
> [1] 
> http://www.dune-project.org/flyspray/index.php?do=details&task_id=250&string=UG&project=1&type[0]=&sev[0]=&pri[0]=&due[0]=&reported[0]=&cat[0]=&status[0]=open&percent[0]=&opened=&dev=&closed=&duedatefrom=&duedateto=&changedfrom=&changedto=&openedfrom=&openedto=&closedfrom=&closedto=
>
>
>
>
>
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