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by alaties
1975 days ago
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The answer is that it works pretty similarly, but GPUs usually do this in specialized hardware whereas mmap'ing of files for DMA-style access is implemented mostly in software. https://insujang.github.io/2017-04-27/gpu-architecture-overv... has a pretty good visual of what's doing what for GPU DMA. You can imagine much of what happens here is almost pure software for mmap'd files. |
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