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[Jan Stránský <question687484@xxxxxxxxxxxxxxxxxxxxx>]

Question #687484 on Yade changed:
https://answers.launchpad.net/yade/+question/687484

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hello,

how much interactions is at the beginning and how much at the end of
your simulation?

> but now simulating has 30% of CPU

this might be because of parallelization. basically the computation is
split into 20 chunks, but each might take different amount of time
(especially the interactions). Already finished threads wait for the
slower.

> velocity of runnig is very low

see above.
Plus there might be more interactions (including non-real interactions) than at the beginning, which makes the simulation slower just by spending more time by evaluating them.

> and solution of that is decreasing dt???

might be, you have to try

cheers
Jan

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