[Numpy-discussion] Fwd: GPU Numpy

Bruce Southey bsouthey@gmail....
Thu Sep 10 08:39:02 CDT 2009


On 09/10/2009 07:40 AM, Francesc Alted wrote:
>
> A Thursday 10 September 2009 14:36:16 Rohit Garg escrigué:
>
> > > That's nice to see. I think I'll change my mind if someone could 
> perform
>
> > > a vector-vector multiplication (a operation that is typically
>
> > > memory-bounded)
>
> >
>
> > You mean a dot product?
>
> Whatever, dot product or element-wise product. Both are memory-bounded.
>
> -- 
>
> Francesc Alted
>
>
As Francesc previous said, these need to be at least in double precision 
and really it should also be in all the floating point precisions used 
by numpy on supported platforms. Based on the various boinc project 
comments, many graphics cards do not natively support double precision 
so  you can get an inflated speedup just because of the difference in 
precision.

Bruce
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