ffc team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Wed, Feb 03, 2010 at 08:08:38PM +0100, Kristian Oelgaard wrote:
>
>
> On 3 February 2010 20:03, Anders Logg <logg@xxxxxxxxx> wrote:
> >On Wed, Feb 03, 2010 at 01:46:32PM +0100, Anders Logg wrote:
> >>On Wed, Feb 03, 2010 at 01:27:51PM +0100, Kristian Oelgaard wrote:
> >>>
> >>>
> >>> On 3 February 2010 13:21, Anders Logg <logg@xxxxxxxxx> wrote:
> >>> >The regression test is failing of HyperElasticity. I guess this is
> >>> >after the recent work on stripping variables?
> >>> >
> >>> >Is this demo ok so we can update the reference?
> >>>
> >>> I pushed a fix to ufl, and the tests are green apart from MixedMixedElement for which I get:
> >>>
> >>> 346_evaluate_dof_6: values differ
> >>>  old = 0.645561
> >>>  new = 0.645562
> >>> 355_evaluate_dofs: values differ
> >>>  old = -0.844483 -0.984214 -1.12569 0.04968 0.063168 0.077184 0.645561 0.71467 0.752005 0.055611 0.0594 0.068229 -0.824896 -0.8811 -1.01206
> >>>  new = -0.844483 -0.984214 -1.12569 0.04968 0.063168 0.077184 0.645562 0.71467 0.752005 0.055611 0.0594 0.068229 -0.824896 -0.8811 -1.01206
> >>>
> >>> a tolerance issue.
> >>
> >>ok, nice. I'll increase it to 1e-5. Soon we'll be at 0.1...
> >
> >Fixed, finally, with a tolerance of 1e-9.
> >
> >The problem was comparison of strings rather than float values with a
> >tolerance. I thought initially it would be enough to just compare the
> >strings and make sure those string values are printed out with only a
> >certain number of decimals, but we kept being screwed over by values
> >like
> >
> > 0.0625000000000000001
> > 0.0624999999999999999
> >
> >Which are rounded to different numbers...
>
> Yes, I noticed that I was still getting errors, but good that you fixed it. I'm cleaning up the parts of the code I've been working on the most including some of the code in cpp.py.

Great. I think we should try to finish up a release of FFC 0.9.1
before the end of February. Ideally, we should go through all the code
again and remove all FIXMEs.

Then FFC will be in ridiculously good shape.

--
Anders

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