[Beowulf] GPU (was Accelerator) for data compressing
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Ellis Wilson xclski at yahoo.comFri Oct 3 22:36:56 PDT 2008
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Bruno Coutinho wrote:
> You need to get data from machine main memory, compress and send results
> back several times.
> The bandwidth of pci express today is 8GB/s, so this is the maximum data
> rate a gpu can compress.
> You can use some tricks like computation and i/o (to main memory)
> parallelization, but will be constrained to 8GB/s anyway.
Check out PCI Express 2 then, you'll get 16GB/s bandwidth but I'm not
sure all the GPU's are moved that direction yet.
Ellis
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