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Add NVIDIA system power usage#5

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mhorst00 wants to merge 3 commits intoSC-SGS:mainfrom
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Add NVIDIA system power usage#5
mhorst00 wants to merge 3 commits intoSC-SGS:mainfrom
mhorst00:main

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Modern "superchips" like GH200 or GB200 have no support for turbostat. To measure the CPU power, one needs to use NVML. This PR introduces support for measuring this module power. This can be CPU+GPU or CPU+CPU (like NVIDIA Grace+Grace).

This uses a different API than the other NVML calls as changing the scope is only supported when using the newer fields based API.

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