xpu-smi unable to set powerlimit

[vinitshenoy]

I am using Arc-770 and Ubuntu 20.04 with kernel 5.14.0-1034-oem.

I want to power limit the GPU TDP to 50W to see impact of GPU performance. root@ubuntuserver20:/home# xpu-smi config -d 0 --powerlimit 50 Return: Succeed to set the power limit on GPU 0.

Message seems to indicate power-limit is successfully set. root@ubuntuserver20:/home# xpu-smi config -d 0 +-------------+-------------------+----------------------------------------------------------------+	Device Type	Device ID/Tile ID	Configuration	+-------------+-------------------+----------------------------------------------------------------+	GPU	0	Power Limit (w): 50				Valid Range: 1 to 0
		Memory ECC:
		Current:
		Pending:

+-------------+-------------------+----------------------------------------------------------------+

However when I run the GPU workloads I still see the GPU consuming more than 50W of power.

root@ubuntuserver20:/home/openvino# xpu-smi dump -d 0 -m 0,1,2 Timestamp, DeviceId, GPU Utilization (%), GPU Power (W), GPU Frequency (MHz) 05:07:33.000, 0, 94.10, 104.60, 2000 05:07:34.000, 0, 94.04, 103.34, 2000 05:07:35.000, 0, 93.31, 103.36, 2000 05:07:36.000, 0, 93.37, 102.90, 2000 05:07:37.000, 0, 93.47, 102.56, 2150

Am I missing something here?

[taotod]

Arc GPU is not officially supported by XPU Manager.