gcl-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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
> > 
> > 
> > 
> 






reply via email to

[Prev in Thread] Current Thread [Next in Thread]