Hello,

I am attempting to run Milkyway@home on my GPU but I get the following error message:


8/18/2010 10:24:00 PM Milkyway@home Message from server: Your NVIDIA GPU lacks the needed compute capability (1.3, required for double precision math

However, I have an NVIDIA 9800 GT which is a compatible product with driver version 258.96, CUDA compatibility of 3.1 (so says the website). I am running BOINC Manager v. 6.10.58 and Windows 7 64bit.

So to the best of my knowledge, everything should be shaking hands and blowing through my computations.

Any ideas? I tried to search through the archives to no avail.

The compute capability isn't added by drivers, it's instead decided by the hardware version. You can compare it with DirectX. While a DirectX 9 card can easily run with DirectX 10 and 11, it will not use the added possibilities of these DirectX versions, as its hardware isn't capable of doing so.

For Milkyway the GPU must be capable of doing double precision math. Your 9800 can only do single precision math, so it won't be able to do Milkyway. Nvidia GPUs with double precision are the Geforce GTX 295, Geforce GTX 285, Geforce GTX 280, Geforce GTX 275, Geforce GTX 260, Tesla S1070, Tesla C1060, Quadro Plex 2200 D2, Quadro FX 5800 and Quadro FX 4800.

Do know that this is a project specification, it has nothing to do with BOINC. See this thread at the Milkyway forums for more information.

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Ok, thank you for the clarification.