Unverified50% confidenceFactExact time
In this case, the real bottleneck of H100 training was non-GPU overhead in the data pipeline, including repeatedly downloading the dataset from S3, the base model not being cached, and single-threaded preprocessing with num_workers set too low.
1
Sources
50%
Confidence
Long-term
Relevance
10/14/2026
First Seen
Sources
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