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Thread: Compute Units of GTX560 is wrong, showing only 7

  1. #1

    Compute Units of GTX560 is wrong, showing only 7

    Hi,

    I work with a NVIDIA GTX 560 that in your description show 336 Cuda Cores, however when i use clGetDeviceInfo or when i run OpenCL Device Query both return only 7 Compute Units.

    Can This be a especific configuration or the board is with problem?

    Thanks,

    Luiz Drumond.

  2. #2
    Senior Member
    Join Date
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    Re: Compute Units of GTX560 is wrong, showing only 7

    Can This be a especific configuration or the board is with problem?
    I imagine it's just the difference between NVidia's marketing terminology and OpenCL's terminology. There's nothing wrong with your hardware.
    Disclaimer: Employee of Qualcomm Canada. Any opinions expressed here are personal and do not necessarily reflect the views of my employer. LinkedIn profile.

  3. #3
    Junior Member
    Join Date
    Dec 2011
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    15

    Re: Compute Units of GTX560 is wrong, showing only 7

    The card has 7, of what Nvidia call, Streaming Multiprocessors (SMs) which OpenCL
    refers to as Comput Units. Each of thse (on that card) contains 48 Streaming Processors
    (SPs, also called CUDA cores) giving you the 336 figure.

    You can see details of many Nvidia cards here
    http://en.wikipedia.org/wiki/Comparison ... sing_units
    just search for "gtx 560" to find your card.

    So as david.garcia says, its fine.

    --
    jason

  4. #4

    Re: Compute Units of GTX560 is wrong, showing only 7

    Thanks

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