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I'm going to claim there is a difference. The GPU handles all the
threading issues needed to deal with the parallelism the GPU offers,
at the cost of a restricted programming model (some random-access
reads, no random access writes); the SPU offers a more general
computing model, but you have to handle all the memory movement and
syncrhonization issues.
You can choose to use the SPU as a GPU with many more registers and
some extra random-access storage, but more general models can be
applied, and useful.
Paul
On 5-May-06, at 10:07 AM, Ronald G Minnich wrote:
Paul Lalonde wrote:
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Aw, but I'd claim all that fancy 3-D graphics stuff is real
computation :-)
But yeah, GPU abuse for general purpose computation is just plain
scary. I thank my lucky stars that there is plenty of FLOPS to
go around in the Cell's SPUs.
uh, there's no real difference between GPU computation and SPU
computation, saving there's more of them SPUs. All the problems apply.
ron
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