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Old 02-21-09, 12:25 PM   #15
walterman's Avatar
Join Date: Oct 2003
Posts: 1,525
Default Re: Anybody into CUDA ?

Well, i was doing something bad, and the results of the test are not valid.

The kernel was not running, because i was selecting bad <<numBlocks, numThreads>>. The only real results for the 1st run are: [128,512] to [32768,8].

So, the GPU is only running 1.25x times faster than the CPU, which is a really bad result.

I have a new version, in which i get 2.5x times faster than the CPU.

This has been a big disappointment.

Note: I have deleted the dl link.
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