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Re: R: Re: Contact detection


Václav Šmilauer a écrit :
After it is difficult to say if SDEC was slower or faster than Yade, I tried to make comparisons but it was on different computers, so it is not very meaningful! Please keep in mind that SDEC and Yade are made with different objectives. It was not very easy in SDEC to make modifications without change the core of the code, whereas evolutions and complementary packages can be easly introduced in Yade,

I didn't suggest to compare yade agains SDEC, but to compare yade
against pfc3d and esys-particle (for instance), using a well-defined
benchmark: a funnel with 10k,100k,1M particles for something that moves
and perhaps isotropic compression for a more-or-less static simulation.

I understand Vaclav, here it was just a reply to Janek's comments...

everybody  can take advantage of developments made by others.

Oh, really. I keep rewriting bad code all the time :-|

my conclusion: speed is not the only key point.

I don't buy this, if that means: we don't have to care about speed. For
research, flexibility is good, but if it is at the cost of significantly
lower speed when doing simulations, than something's wrong.

I agree with you Vaclav, I just wanted to explain that when you choose a code, you have to care about the speed (it is important of course) but not only.

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Luc Sibille

Université de Nantes - Laboratoire GeM UMR CNRS

IUT de Saint Nazaire
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