yade-dev team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

(moving to yade-dev)

No guess yet. Thanks for notifying. Which scripts gives the segfault?

B

On 26/09/11 07:43, Klaus Thoeni wrote:
> Hi Bruno,
>
> I tested your implementation with my examples (dynamic problem with about 
> 10000 particles) and the computational time in InsertionSortCollider slightly 
> improved as expected.
>
> However, when running your branch with examples with clumps gives a 
> Segmentation Fault. Any guess?
>
> Klaus
>
> On Tue, 20 Sep 2011 07:29:02 AM Bruno Chareyre wrote:
>> Hi all,
>>
>> I worked on some optimizations of contact detection recently and I would
>> like to get feedback from you to detect possible bugs and confirm the
>> speedup for different applications. If everything is ok, the changes can
>> be part of the next release after some code cleanup and documentation.
>>
>> If you have a chance, could you please download and compile the branch
>> lp:~bruno-chareyre/yade/collide2 (bzr checkout
>> lp:~bruno-chareyre/yade/collide, cd yade, scons, as usual) and try this
>> with your own problems?
>> I would be gratefull if you could report differences in terms of
>> computation speed.
>> I don't expect big improvements for small quasistatic problems. The
>> speedup is more likely to happen on large and/or dynamic problems, where
>> it should range between x2 and x3, or even more in multithread.
>> Some results are reported here:
>> https://yade-dem.org/wiki/Colliders_performace#Improved_InsertionSort
>>
>> Thanks.
>>
>> Bruno


-- 
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Bruno Chareyre
Associate Professor
ENSE³ - Grenoble INP
11, rue des Mathématiques
BP 46
38402 St Martin d'Hères, France
Tél : +33 4 56 52 86 21
Fax : +33 4 76 82 70 43
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