The Matrix to end all Matrix classes (Let's dream!) - BLADE 0.4Alpha

Craig Black cblack at ara.com
Tue Nov 20 09:09:32 PST 2007


"Don Clugston" <dac at nospam.com.au> wrote in message 
news:fhv35u$18nc$1 at digitalmars.com...
> 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.

What are strided arrays?  Are they similar to sparse arrays? 





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