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Re: [Gcl-devel] blas and complex
From: |
Vanuxem Grégory |
Subject: |
Re: [Gcl-devel] blas and complex |
Date: |
Sat, 23 Jul 2005 19:18:41 +0200 |
Hi,
Le samedi 23 juillet 2005 à 11:20 -0400, Camm Maguire a écrit :
> Greetings!
>
> Right now you need to double the array of the same type as the
> real-part of the comlex, i.e. (make-array 20 :element-type long-float)
> -> complex double blas vector of dimension 10. Eventually we can
> make use of the gcc complex extensions.
>
> 2d arrays hav the leading dimension stored in x->a.a_dims[1] (or
> [0]). This gives the blas 'lda'.
I use another interface the user can set lda
(since lda can be superior).
>
> Take care,
>
> Vanuxem Grégory <address@hidden> writes:
>
> > Hi,
> >
> > I run into problem with complex version of blas.
> > How do you think someone can implement an interface of
> > complex version of blas.
> >
> > For example:
> >
> > alpha * X + Y
> >
> > how can i send alpha to c code ?
> > A vector of two elements ?
And here ?
problematic no ?
Cheers,
Greg
> >
> > And X, 2D-array of long-float ?
> >
> > Cheers,
> >
> > Greg
> >
> > PS: there is an interface for cmucl or allegro named matlisp.
> > It's use CLOS.
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Gcl-devel mailing list
> > address@hidden
> > http://lists.gnu.org/mailman/listinfo/gcl-devel
> >
> >
> >
>