dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Wed, Feb 20, 2008 at 10:10:40PM +0100, Dag Lindbo wrote:
> Problem solved: We forgot the -DNDEBUG flag to the compiler (which means
> uBLAS runs full bounds and conformity checking etc). Best to keep to the
> 'pkg-config' way of compiling :) Sorry.
> 
>   Dag

ok, that's what I did when testing. (I replaced your Makefile with a
pkg-config Makefile to make it compile.)

> PS. Is NDEBUG defined by some header which happens to get included when
> the LinearPDE is used? (this seems strange to me, but I really would like
> to understand the different behaviors).

No idea.

-- 
Anders


> > Hi!
> >
> > We've run into what appears to be a strange bug with applying boundary
> > conditions to uBlasMatrix. We implement assembly and boundary condition
> > application (BoundaryCondition::apply()) in two different ways: manually
> > and by LinearPDE. In the manual case (which replicates the LinearPDE
> > implementation), we see an extreme slowdown in what looks to be the
> > uBlasMatrix::ident() function. If we use the LinearPDE implementation the
> > performance is as expected.
> >
> > I'm attaching a simple test case which demonstrates the issue. Has anyone
> > experienced a similar issue or has an idea what goes wrong?
> >
> > This is with DOLFIN 0.7.2 (and should also appear with 0.7.1).
> >
> > Thanks,
> >   Johan
> >
> >
> > _______________________________________________
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> > DOLFIN-dev@xxxxxxxxxx
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> >
> 
> 
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