how can i get speedup via gpu computing

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DEEVESH MULCHANDANI on 12 Feb 2013

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i am trying to speed up my security analysis program using gpu computing i tried the example program from gpu computing with matlab webinar of fft but i am not getting the speedup. i am using nvidia GT525M gpu with intel core i5 processor and also having the latest cuda 5 driver installed. please help me out what to do?

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Answer 1

Jason Ross on 13 Feb 2013

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Looking at the specs on the card you have, there are a couple things:

This card has a small number of compute cores (96) versus the card likely used in the demo -- probably a Tesla C1060 (240 cores/4 GB RAM) or C2075 (448 cores/6 GB RAM). More cores and more RAM is going to allow for more speedup.
It looks like the GT525M includes the Optimus features, one of which is dedicated to power saving by disabling the GPU when it's not required, to extend battery life in a notebook. You might want to try disabling power saving features entirely and see if it makes a difference.