yade-dev team mailing list archive

[Anton Gladky <gladky.anton@xxxxxxxxx>]

Hi Bruno,

I, probably, have read your last messages too late, but I tested your
branch this night.
Unfortunately, I did not find any big differences between trunk- and
new-collider.
If I tested wrong version, please, let me know.

Anton




On Tue, Sep 27, 2011 at 2:43 PM, Bruno Chareyre
<bruno.chareyre@xxxxxxxxxxx> wrote:
> There was indeed a bug with clumps (fixed), but the thing I don't
> understand is the branch did not contain the changes. Bazaar branches
> are not quite user-friendly for commits/updates...
> Klaus, you probably didn't try the good code (but then how did you spot
> the bug? I'm lost...).
> Could you send me a copy of the core/bound.hpp you downloaded, just to
> be sure?
>
> Bruno
>
>
>
> On 26/09/11 10:37, Bruno Chareyre wrote:
>> (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
>>
>
>
> --
> _______________
> Bruno Chareyre
> Associate Professor
> ENSE³ - Grenoble INP
> 11, rue des Mathématiques
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> Tél : +33 4 56 52 86 21
> Fax : +33 4 76 82 70 43
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