Prefetch #2
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Prefetch #2
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Description
This is known as NVIDIA data prefetcher, here is some reference :
How to prefetch data when processing with GPU?(pytorch.org)
Dose data_prefetcher() really speed up training?
In my case, with
torchvision.dataset.cocoand custimized collation_fn, this gains just about 3% (69s - > 67s) in an epoch.More surveys are needed.
Features
Fix