Laurent Morichetti 9a82118c85 SWDEV-362046 - Report HIP_OPS activities using the ROCr driver_node_id instead of the device's index ...

The ROCclr assigns zero-based IDs to GPUs in the order they are
discovered. That zero-based ID is what is used to identify the GPU
on which the HIP_OPS activity took place.

When multiple ranks are used, each rank's first logical device always
has GPU ID 0, regardless of which physical device is selected with
CUDA_VISIBLE_DEVICES. Because of this, when merging trace files from
multiple ranks, GPU IDs from different processes may overlap.

The long term solution is to use the KFD's gpu_id which is stable
across APIs and processes. Unfortunately the gpu_id is not yet exposed
by the ROCr, so for now use the driver's node id.

Change-Id: Ib78854527d600d175bb76e2df0747c33f898c615

2022-10-20 12:31:30 -04:00

rocclr

SWDEV-362046 - Report HIP_OPS activities using the ROCr driver_node_id instead of the device's index

2022-10-20 12:31:30 -04:00

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