dolfin team mailing list archive

[Johan Hake <hake.dev@xxxxxxxxx>]

On 11/15/2012 10:07 AM, Garth N. Wells wrote:
> On Thu, Nov 15, 2012 at 8:58 AM, Johan Hake <hake.dev@xxxxxxxxx> wrote:
>> On 11/14/2012 09:51 AM, Benjamin Kehlet wrote:
>>> 2012/11/14 Anders Logg <logg@xxxxxxxxx <mailto:logg@xxxxxxxxx>>
>>>
>>>     Dear all,
>>>
>>>     The plot and csg branches have been merged into trunk. Please try out
>>>     the new functionality for mesh generation (from both CSG descriptions
>>>     and input files) and plotting and report any problems.
>>>
>>>     All thanks to very good work from Benjamin, Joachim and Johannes.
>>>
>>>
>>> It is a little bit early to applaud. There are some issues with the csg
>>> stuff that need to be fixed, so mesh generation (in particular in 3D) is
>>> likely to crash.  I've have pushed everything to trunk, though, since
>>> some of the plotting code depends on parts of the csg code.
>>
>> It crashes, but almost randomly. The same script (3D demo) sometime
>> generate a nice mesh, other times a crappy one, and sometimes just crash.
>>
>>> Will report back when this has been fixed.
>>
>> What is the main cause for this erratic behavior?
>>
> 
> I observed erratic behaviour with CGAL <= 4.0.2 + gcc before the CSG
> merge (this also showed up with the buildbots, with the CGAL-based
> mesh generation failing randomly), but it's been very reliable with
> CGAL 4.2 + gcc 4.7.

I guess you mean CGAL 4.1?

I have now upgraded to CGAL 4.1 and gcc4.7 and it is actually less
reliable. Now I have not got any mesh out of the 3D python demo.
Previously I got some 1 out of 4 runs.

Johan

> Garth
> 
>> Johan
>>
>>> Benjamin
>>>
>>>
>>>     --
>>>     Anders
>>>
>>>     _______________________________________________
>>>     Mailing list: https://launchpad.net/~dolfin
>>>     Post to     : dolfin@xxxxxxxxxxxxxxxxxxx
>>>     <mailto:dolfin@xxxxxxxxxxxxxxxxxxx>
>>>     Unsubscribe : https://launchpad.net/~dolfin
>>>     More help   : https://help.launchpad.net/ListHelp
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Mailing list: https://launchpad.net/~dolfin
>>> Post to     : dolfin@xxxxxxxxxxxxxxxxxxx
>>> Unsubscribe : https://launchpad.net/~dolfin
>>> More help   : https://help.launchpad.net/ListHelp
>>>
>>
>>
>> _______________________________________________
>> Mailing list: https://launchpad.net/~dolfin
>> Post to     : dolfin@xxxxxxxxxxxxxxxxxxx
>> Unsubscribe : https://launchpad.net/~dolfin
>> More help   : https://help.launchpad.net/ListHelp