Mdapi multi adapter #394
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Mdapi multi adapter #394
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Description of Changes
Adds support for MDAPI metric collection on systems with multiple GPUs. Currently, metric collection is only supported for one GPU at a time, and the GPU to use to collect metrics may be specified by using the control DevicePerfCounterAdapterIndex, or by passing
--mdapi-deviceand an adapter index tocliloader. The available GPUs for metric collection and their adapter indices may be specified by passing--mdapi-devicestocliloader.Note: On Linux, for some GPUs, metric collection requires the out-of-tree i915 kernel mode driver.
All of this information has been added to the OpenCL Intercept Layer MDAPI documentation.
Testing Done
Tested on Windows and Linux with a simple application on a system with an integrated GPU and a discrete GPU. Verified that metrics could be collected on both GPUs.