nvidia-smi 소비전력 제한

케플러가 600/700 시리즈니 요즘 시대에는 다 된다고 봐야할 듯.

-pl, --power-limit=POWER_LIMIT Specifies maximum power limit in watts. Accepts integer and floating point numbers. it takes an optional argument --scope. Only on supported devices from Kepler family. Value needs to be between Min and Max Power Limit as reported by nvidia-smi. Requires root. -sc, --scope=0/GPU, 1/TOTAL_MODULE Specifies the scope of the power limit. Following are the options: 0/GPU: This only changes power limits for the GPU. 1/Module: This changes the power limits for the module containing multiple components. E.g. GPU and CPU.

[링크 : https://docs.nvidia.com/deploy/nvidia-smi/]

[링크 : https://developer0hye.tistory.com/690]

 

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2026.04.24

범위를 어떻게 확인하지? 

C:\>nvidia-smi -pl 100 Provided power limit 100.00 W is not a valid power limit which should be between 125.00 W and 300.00 W for GPU 00000000:01:00.0 Terminating early due to previous errors. C:\>nvidia-smi -pl 125 Failed to set power management limit for GPU 00000000:01:00.0: Insufficient Permissions Terminating early due to previous errors.

 

아무튼 관리자 권한으로 실행된 cmd 창에서만 변경된다.

C:\>nvidia-smi -pl 125 Power limit for GPU 00000000:01:00.0 was set to 125.00 W from 250.00 W. All done. C:\>nvidia-smi -pl 250 Power limit for GPU 00000000:01:00.0 was set to 250.00 W from 125.00 W. All done. C:\>nvidia-smi -pl 125 Power limit for GPU 00000000:01:00.0 was set to 125.00 W from 250.00 W. All done.