Re: GPUs and CUDA

[Anatoly Chernyshev <achernyshev@gmail.com>]

On Jul 11, 10:38 pm, Georg Bauhaus <rm.dash-bauh...@futureapps.de>
wrote:
> Wouldn't a multicore PC with additional Graphics processors be
> a candidate for an Ada 2012 Ravenscar multicore runtime?

I'm not sure about that, taking into account that Ada's original
purpose is embedded systems, which are often missing GPUs whatsoever.
Yet, I believe, GPU's cores are not quite the same as CPU's, even in
terms of synchronization and communication.

>Err... I think "binding" is perhaps a horrid idea. (Raise your hand if
>you just want a light wrapper around C-headers.)
>The way to go, IMO, is to allow a specialized pragma to indicate to
>the compiler that such and such subprogram is intended for
>distribution to the GPUs for parallel work.

>This would allow something like
> Pragma CUDA( Ralph );

I guess, in this particular case, the binding or port is better. The
suggested pragma makes the language (or at least compiler) hardware-
dependend, which I, personally, would hate to see. Yet, the IT's
hardware sector is much more agile than Ada's standards, so that today
we have CUDA, and tomorrow it will be replaced by who-knows-what...