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> That's rather perverse though. Are you telling it you need "at least 2 GB
> RAM" to run M$ Office smoothly, but 1/8 of that is just fine for running
> extremely intensive game software?
Well almost, I know that just double the PS3 RAM would be enough to run
Vista + Office smoothly. But then Vista does 842434 more things than the
PS3 OS does, so I think it's allowed to use up half a gig more if it wants
to.
> Now that you mention it, if I Alt-Tab out of TF2, my PC locks up for about
> 30 seconds. (As in, I get a black screen for 30 seconds.) Then Windows
> comes up - possibly in the wrong resolution. Switching back to TF2 is
> similarly slow. Go figure...
Of course it is up to the game writer how they handle Alt-Tabbing, and of
course it will depend how much RAM your machine has and how much of it is
used for other stuff. I imagine the mirror of the GPU data gets paged to
disc first, as it's not used until you Alt-Tab back to the app. But it
would be a silly game design if it had to reload and uncompress all the game
data each time you alt-tabbed back to the game.
> As I understand it, technologies like CUDA allow you to run arbitrary code
> on a GPU. So no need for convoluted trickery to convince the GPU that your
> proplem is just like texture mapping, just feed it the actual calculations
> you want it to do. (Of course, it runs arbitrary code, that doesn't
> necessarily mean it runs it *fast*.)
I suspect that the clever bit about CUDA is how it translates your arbitrary
code into operations that the GPU is capable of carrying out. And I also
suspect, that to get decent performance you need to have a pretty good
understanding of how the GPU actually works, and write your code
accordingly.
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