dolfin team mailing list archive

[Martin Sandve Alnæs <martinal@xxxxxxxxx>]

Hi Chaffra,
I will look at your patch soon, and believe the custom mathfunction
derivatives can be used.

However, the ufl evaluate function is not what you think.
It is only intended for testing and debugging, and is pure
UFL without knowledge of dolfin.Function.
Using it for computations will be as _extremely_ slow.

Martin

On 29 April 2011 22:33, Chaffra <question154756@xxxxxxxxxxxxxxxxxxxxx> wrote:
> Question #154756 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/154756
>
>    Status: Answered => Open
>
> Chaffra is still having a problem:
> Well, all these problems arose because I have been hacking ufl in order
> to create my own mathfunctions by inheriting from MathFunction and still
> use JIT to compile my problem.  I will submit my small changes  in UFL
> to Martin to see if this might be acceptable for merging.
>
> Thanks, Chaffra.
>
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