I forgot to say, that this affects mostly small systems. Changing the mesh to UnitSquare(200,200), the speedup is not that dramatic anymore but the second code is still 40% faster.
-- Huge performance problem in Python interface https://bugs.launchpad.net/bugs/612579 You received this bug notification because you are a member of DOLFIN Team, which is subscribed to DOLFIN. Status in DOLFIN: New Bug description: In my Python Code I need to evaluate a nonlinear functional many times. This was rather slow and after a profile run, I've noticed that 90% of the time was spent in the __init__ routine of form.py to compile the form. As far as I can survey the code, this should be necessary only once. I have attached a simple example that illustrates the effect. In my test, the second code is roughly 40 times faster. _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : dolfin@lists.launchpad.net Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
