Question #700434 on Yade changed:
https://answers.launchpad.net/yade/+question/700434
Bruno Chareyre posted a new comment:
Hi, thanks for report. It is interesting to see the effect on initSort but it
is in fact not the important question.
It occurs only at iteration 1, then never again (also I
Question #700434 on Yade changed:
https://answers.launchpad.net/yade/+question/700434
Janek Kozicki posted a new comment:
It probably has something to do with the order in which the spheres were
inserted. It is almost sorted for one direction, but not the other.
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Question #700434 on Yade changed:
https://answers.launchpad.net/yade/+question/700434
Daniel Kiracofe posted a new comment:
Jérôme, the initial report above was for a single iteration: O.run(1).
To answer your question, I did a reset of the timing statistics and then
ran for 100 iterations (very
Question #700434 on Yade changed:
https://answers.launchpad.net/yade/+question/700434
Jérôme Duriez posted a new comment:
Hi Daniel,
Do you confirm these interesting timing data are for one DEM iteration ?
(I'm wondering if these significant differences would be visible on a
DEM simulation with
Question #700434 on Yade changed:
https://answers.launchpad.net/yade/+question/700434
Status: Answered => Solved
Daniel Kiracofe confirmed that the question is solved:
Bruno, thank you for reply. I decided to try a few experiments. I
created a highly elongated packing with an aspect ratio
Question #700434 on Yade changed:
https://answers.launchpad.net/yade/+question/700434
Status: Open => Answered
Bruno Chareyre proposed the following answer:
Hi, in a scene which is very elongated along Y-axis it could increase
performance a little to choose Y as the first sorting axis,
New question #700434 on Yade:
https://answers.launchpad.net/yade/+question/700434
InsertionSortCollider documentation says: "At the initial step, Bodies’ bounds
(along sortAxis) are first std::sort’ed along this (sortAxis) axis, then
collided. The initial sort has O(n^2) complexity,". But
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