dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

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.

Garth

> Johan
>
>> Benjamin
>>
>>
>>     --
>>     Anders
>>
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