MFU is a valid linear predictor of GPU power in compute-bound LLM training, with per-(GPU, dtype, batch) fits reaching 1% error, matching measurement noise.
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Evaluating MFU as a Proxy for GPU Power for Energy-Aware Simulation of LLM Training
MFU is a valid linear predictor of GPU power in compute-bound LLM training, with per-(GPU, dtype, batch) fits reaching 1% error, matching measurement noise.