[Beowulf] GPU (was Accelerator) for data compressing

Ellis Wilson xclski at yahoo.com
Sat Oct 4 01:36:56 EDT 2008


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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