Cuda 3.2 all erroring, 4.2 all good after new Nvidia driver install

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Mark Henderson
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Message 44237 - Posted: 24 Oct 2012, 11:44:33 UTC

Cuda 3.2 all erroring out but 4.2 all good after new Nvidia driver install on both my cards. 570 and 680 ?? Any ideas?
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Richard Haselgrove
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Message 44241 - Posted: 24 Oct 2012, 21:21:33 UTC - in response to Message 44237.  

Cuda 3.2 all erroring out but 4.2 all good after new Nvidia driver install on both my cards. 570 and 680 ?? Any ideas?

I gather you've been told this already by PM, but for the benefit of other readers....

The v306.97 (cuda 5.0) driver that you're using introduced some new optimisations into the JIT ("Just In Time") runtime compiler which NVidia uses to tailor the distributed PTX code to the specific card that you're running the application on. The current cuda 4.2 application executes correctly on both Fermi (570) and Kepler (680) cards, but the cuda 3.2 application - targeted on older cards - has problems, especially on Kepler cards.

Revised applications have fixed this problem in alpha testing: we are just waiting for Eric to find time to deploy them on the server for wider Beta testing.
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Message boards : SETI@home Enhanced : Cuda 3.2 all erroring, 4.2 all good after new Nvidia driver install


 
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