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Re: [Gcl-devel] blas and complex
From: |
Camm Maguire |
Subject: |
Re: [Gcl-devel] blas and complex |
Date: |
23 Jul 2005 11:20:00 -0400 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 |
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'.
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 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
>
>
>
--
Camm Maguire address@hidden
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