Multi GPU

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    Wishgranter
    Hi Yoz

    You can use all GPUs in the system without a need to set anything in RC but if you will have Quadro K2200, there I recommend you to DISABLE it in RC, as it is a low-performing card regarding COMPUTATION so it would slow down the 2x 970 GPUs.
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    yoz
    Hi,

    Thanks for your answer.

    Why the Quadro K2200 will low-performing the computation ? It has 4Go Ram and 640 cuda cores. If i have only one GTX970, it's better than nothing to let the K2200...

    And to how to disable a GPU in RC ?

    Regards.
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    Wishgranter
    Hi Yoz

    Because it is OLDER technology, like the 9xx series, and the CUDA compiler needs to do changes etc. I have tested it with different architectures and can confirm the slow-down of the reconstruction process.

    You can disable them in RECONSTRUCTION -> SETTINGS -> DEPTH MAPS CALCULATION.

    Screenshot 2016-04-06 11.28.55.png
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    yoz
    Thanks a lot !

    I hope i can put 2 GTX and 1 Quadro on the motherboard :)

    Regards !
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    yoz
    Hi,

    Now I have 2 GTX970 in my config. I have a question about Nvidia SLI : Is it worth using this technology with 2 GPU on RC steps ?

    Thanks.

    Regards.
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    Wishgranter
    hi Yoz
    the SLI technology is useful ONLY in GAMING, not for COMPUTATION and, in principle, using SLI you will get a few % slowdown... So SLI is useless in COMPUTATION... And as I have already pointed out, the SLI will be completely removed in 1-2 years...
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