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[Robert Caulk <question688771@xxxxxxxxxxxxxxxxxxxxx>]

Question #688771 on Yade changed:
https://answers.launchpad.net/yade/+question/688771

    Status: Open => Answered

Robert Caulk proposed the following answer:
Bruno will know for sure, but it seems possible that the sorting is
unable to use parallelization because a bound moves outside of a single
thread's domain (if I understand correctly) [1]. Maybe this has
something to do with the use of clumps+periodic.

Could you tell us if you observe the same performance issue when you
use:

-unclumped particles + periodic triax
-clumped particles + nonperiodic triax
-unclumped particles + non periodic triax

?

Cheers,

Robert

https://gitlab.com/yade-
dev/trunk/-/blob/master/pkg/common/InsertionSortCollider.cpp#L145

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