DarthAffe/stable-diffusion.cpp
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fix: guard GPU memory capacity and propagate encoding failures (#1958)

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leejet authored and GitHub committed 2026-09-13 21:35:46 +08:00
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docs/backend.md
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@@ -154,6 +154,11 @@ GiB", and with no budget set each device's free memory minus a 512 MiB margin
is used. These resolved GPU budgets, including the safety margin, also drive
the runner's graph-cut capacity checks.
Runtime capacity checks also leave 512 MiB of currently free device memory for
backend scratch buffers and pipelines, including with explicit backend assignments.
They cap stale free-memory reports by the device's total memory minus tracked
resident allocations and reject reports that exceed the device's total memory.
Components are considered in `diffusion`, `te`, `vae` order so that repeatedly
used diffusion weights have priority. Each component's weights use the first
storage location with enough remaining budget: