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ROCm / ROC-smi

ROC System Management Interface
https://github.com/RadeonOpenCompute/ROC-smi/blob/master/README.md
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average power and power cap #89

Closed virtualroughneck closed 4 years ago

virtualroughneck commented 4 years ago

hi, when i run rcom-smi i see the two power fields

  1. average power
  2. Power Cap can somebody explain me their difference. Also i want to lower my Average power consumption of my amd 580 cards without lowering the Power Cap. All help is really appreciated Thanks!!
kentrussell commented 4 years ago

1) Average power - The average power consumed by the GPU in the last sample window. This could be around 100ms or so 2) Power Cap - The maximum power usage permitted (some small spikes may exceed this value, but it should be rare)

If you want to lower power consumption without lowering the power cap, you'll need to just clock things down (sclk, mclk, socclk). Otherwise there's nothing to stop the power usage from increasing based on workload.