[gecode-users] Slow performance on large domains before branching

[Matthias Goldhoorn]

Hello Developers and Users,
i have a quite big domain/searchspace.
However gecode performs currently well and solves my problem. But i 
recognized a strange behavior.

Berfore ma actual branching/search starts, gecodes does a lot of 
internal calculations. I'm not sure if i have done the setup wrong of if 
there is some optimization that i can do?
I attached [1] a picture of the most time and instruction consuming 
calls. Maybe somone can give me a recommendation where i can start tuning..

Setup (class instanciation and bracer setup ~15 sek)
first call of BAB until code-flow reaches my first (self written) 
brancher: ~3min
Actual branching/searching: 10sek.
Overall Memory consumption ~5GB

Best Regard,
Matthias

[1] https://www.dropbox.com/s/21aqlbnjs3zx1rd/callgrind-gecode.png?dl=0

-- 
  Dipl.-Inf. Matthias Goldhoorn
  Space and Underwater Robotic

  Universität Bremen
  FB 3 - Mathematik und Informatik
  AG Robotik
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