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[DO NOT MERGE] Use only CUDA devices with a supported architecture #299

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[DO NOT MERGE] Use only CUDA devices with a supported architecture #299

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Commits on Mar 25, 2019

  1. Use only CUDA devices with a supported architecture 

    For each available CUDA device, check if its architecture is supported running a simple kernel.
This allows to restrict using only the supported devices
  - at configuration time, in the SwitchProducerCUDA, via the cudaIsEnabled test;
  - at run time, in the CUDAService and its clients;
  - when running tests, via exitSansCUDADevices.

Includes Matti's fix for the sizes of stream and event caches (cms-sw#289).
    @fwyzard
    fwyzard committed Mar 25, 2019
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