dolfin team mailing list archive

[Marie Rognes <meg@xxxxxxxxx>]

On 22. mai 2010 14:43, Garth N. Wells wrote:
>
>
> On 22/05/10 10:48, Anders Logg wrote:
>> On Sat, May 22, 2010 at 09:28:55AM +0100, Garth N. Wells wrote:
>>> Is anyone using the LAPACK linear algebra wrappers? Since they are
>>> not subclasses of GenericFoo, I suggest that we remove them and
>>> users use Armadillo (http://arma.sourceforge.net/) instead when
>>> wanting to access LAPACK/ATLAS functions. Armadillo is very easy to
>>> use. Any objections to removing the LAPACK wrappers?
>>>
>>> We have a Blueprint for wrapping Armadillo, but this would only be
>>> worthwhile if we want to assemble into an Armadillo-based object.
>>> Since Armadillo will most commonly be used for small matrices when
>>> performance is critical, and expression templates are one of its
>>> very attractive features, I don't see much point in wrapping it.
>>>
>>> Garth
>>
>> I agree it would be better to wrap Armadillo (or use it directly), but
>> the LAPACK wrappers are used heavily in the Extrapolation class so
>> they can't be removed until that has been ported to use Armadillo.
>>
>
> Turned out that only a few lines needed to be changed.
>
> Non-const integers are passed by reference as few times in
> Extrapolation. Is it the intention that they change and are then used?
>


Yes.

--
Marie

> Garth
>
>> -- 
>> Anders
>
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