yade-dev team mailing list archive

[Anton Gladky <729079@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Sergei Dorofeenko  (https://launchpad.net/~sergei.dorofeenko) found,
that InsertionSortCollider is probably is a "bottle neck" in simulations
with >10^5 number of particles even in many-threads mode.

http://www.mail-archive.com/yade-dev@xxxxxxxxxxxxxxxxxxx/msg06573.html

Сitation:
"...I did a perfomance test for parallel mode and results in no good.

Performance boost only about 40% from 1 thread to 4 thread for 200k
particles... Cause is a non-parallelised InsertionSortCollider, who need
about 80% time with 4 threads.

Results attached."

** Affects: yade
     Importance: Wishlist
         Status: New

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https://bugs.launchpad.net/bugs/729079

Title:
  Performance optimization of InsertionSortCollider

Status in Yet Another Dynamic Engine:
  New

Bug description:
  Sergei Dorofeenko  (https://launchpad.net/~sergei.dorofeenko) found,
  that InsertionSortCollider is probably is a "bottle neck" in
  simulations with >10^5 number of particles even in many-threads mode.

  http://www.mail-archive.com/yade-dev@xxxxxxxxxxxxxxxxxxx/msg06573.html

  Сitation:
  "...I did a perfomance test for parallel mode and results in no good.

  Performance boost only about 40% from 1 thread to 4 thread for 200k
  particles... Cause is a non-parallelised InsertionSortCollider, who
  need about 80% time with 4 threads.

  Results attached."