On 12/8/11 11:07 AM, Kristian Ølgaard wrote: > On 8 December 2011 10:58, Harish Narayanan <harish.mli...@gmail.com> wrote: >> On 12/8/11 10:53 AM, Anders Logg wrote: >>> On Thu, Dec 08, 2011 at 10:46:20AM +0100, Harish Narayanan wrote: >>>> Dear all, >>>> >>>> I am trying to run some problems which involve somewhat complex >>>> variational forms which FFC takes ages (O(1 day)) to compile. Is there >>>> any clear documentation on the strategies one should apply to speed >>>> things up in general? I am interested both in appropriate FFC parameters >>>> and tips on how to split a form into pieces so that I don't end up >>>> recompiling everything every time I make small changes. >>> >>> Did you try setting the number of quadrature points? FFC is likely >>> using quite a few points to integrate your form and it's probably >>> overkill. >> >> Is that quadrature_order or quadrature_degree? I have unsystematically >> tried a few things which haven't been successful, so I thought I would >> ask for documentation. > > quadrature_degree > > see 'man ffc' > > There is no documentation on which strategies to use wrt splitting up > forms, and I don't really have any good advice from the top of my > head. > (I assume you use PyDOLFIN) > > Using no optimisation for the FFC compiler will obviously result in > the fastest compile time.
I will try removing all optimisation and reducing the quadrature_degree. Thanks! Harish _______________________________________________ Mailing list: https://launchpad.net/~ffc Post to : ffc@lists.launchpad.net Unsubscribe : https://launchpad.net/~ffc More help : https://help.launchpad.net/ListHelp
