CUDA_FERMI ok to run on non fermi?


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Questions and Answers : GPU applications : CUDA_FERMI ok to run on non fermi?

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Message 1111348 - Posted: 30 May 2011, 11:59:27 UTC
Last modified: 30 May 2011, 12:07:37 UTC

I just noticed that a system that has gtx280 and gtx460 is being assigned CUDA_FERMI and both GPUs are getting work. I assume that is OK since I don't see any errors. As I recall, gtx280 is not a fermi.

http://setiathome.berkeley.edu/results.php?hostid=5933773


    setiathome_CUDA: Found 2 CUDA device(s):

    Device 1 : GeForce GTX 280
    totalGlobalMem = 1013776384
    sharedMemPerBlock = 16384
    regsPerBlock = 16384
    warpSize = 32
    memPitch = 2147483647
    maxThreadsPerBlock = 512
    clockRate = 1296000
    totalConstMem = 65536
    major = 1
    minor = 3
    textureAlignment = 256
    deviceOverlap = 1
    multiProcessorCount = 30

    Device 2 : GeForce GTX 460
    totalGlobalMem = 1008271360
    sharedMemPerBlock = 49152
    regsPerBlock = 32768
    warpSize = 32
    memPitch = 2147483647
    maxThreadsPerBlock = 1024
    clockRate = 1350000
    totalConstMem = 65536
    major = 2
    minor = 1
    textureAlignment = 512
    deviceOverlap = 1
    multiProcessorCount = 7

    setiathome_CUDA: CUDA Device 1 specified, checking...
    Device 1: GeForce GTX 280 is okay
    SETI@home using CUDA accelerated device GeForce GTX 280



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Message 1111350 - Posted: 30 May 2011, 12:09:16 UTC


IIRC, I have had both stock and Lunatics Fermi apps running on an old GTS 8800 without problems.

Early this year the 8800 was pressed back into service after a new GTS 450 failed and was being replaced. That happened twice!

I eventually settled on a GTX 460, and keep on crunching!

No problems.

Martin

Questions and Answers : GPU applications : CUDA_FERMI ok to run on non fermi?

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