The Matrix to end all Matrix classes (Let's dream!) - BLADE 0.4Alpha
Don Clugston
dac at nospam.com.au
Tue Nov 20 08:48:59 PST 2007
Craig Black wrote:
> "Don Clugston" <dac at nospam.com.au> wrote in message
> news:fhv00l$13eq$1 at digitalmars.com...
>> For reference, here's the state of BLADE:
>> -------
>
> Very very cool Don! This obviously has huge potential. Do you have any
> plans to support GPU's or multicores? Have you looked into SSE3 or SSE4 to
> see if there are any new instructions that would be useful?
Yes. Although it seems to me that the GPU world is about to change radically --
using OpenGL looks like a horrible hack without long-term future. I'll wait
until we get a decent API, I think.
I have been looking at SSE3, 4, and 5, but I don't even have a Core2 machine...
> Double precision support is the most important to me, but I am also
> interested in single precision and extended precision. To what degree are
> they supported?
Yes.
(b) generates X87, SSE, SSE2, or inline D code, depending on the complexity of
the expression and the types involved.
I assume that SSE instructions can't be used for extended
> precision operations.
Yes. I don't think they're even worth doing when strided arrays are involved,
except in special cases.
>
> So there is only support for one dimensional arrays? When will two
> dimensional arrays be supported?
Strided arrays are next, then 2D.
Once two dimensional arrays are
> implemented, a simple test for the code generator would be to generate
> optimized code for single precision multiplication of 3x3 or 4x4 matrices.
> Optimal code for single precision 3x3 and 4x4 matrix multiplication is
> widely available on the internet.
>
> -Craig
>
>
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