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feat: make negative max_vram control the amount of spare vram (#1503)

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Wagner Bruna authored and GitHub committed 2026-05-18 23:00:06 +08:00
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commit f683c88a28
4 files changed
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examples/cli/README.md
+2 -1
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@@ -55,7 +55,8 @@ Context Options:
then threads will be set to the number of CPU physical cores
--chroma-t5-mask-pad <int> t5 mask pad size of chroma
--max-vram <float> maximum VRAM budget in GiB for graph-cut segmented execution. 0 disables
graph splitting; -1 auto-detects free VRAM minus 1 GiB
graph splitting; a negative value auto-detects free VRAM, sparing the
specified value (e.g. -0.5 will keep at least 0.5 GiB free)
--force-sdxl-vae-conv-scale force use of conv scale on sdxl vae
--offload-to-cpu place the weights in RAM to save VRAM, and automatically load them into VRAM
when needed
examples/common/common.cpp
+1 -1
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@@ -413,7 +413,7 @@ ArgOptions SDContextParams::get_options() {
options.float_options = {
{"",
"--max-vram",
"maximum VRAM budget in GiB for graph-cut segmented execution. 0 disables graph splitting; -1 auto-detects free VRAM minus 1 GiB",
"maximum VRAM budget in GiB for graph-cut segmented execution. 0 disables graph splitting; a negative value auto-detects free VRAM, sparing the specified value (e.g. -0.5 will keep at least 0.5 GiB free)",
&max_vram},
};
examples/server/README.md
+2 -1
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@@ -157,7 +157,8 @@ Context Options:
then threads will be set to the number of CPU physical cores
--chroma-t5-mask-pad <int> t5 mask pad size of chroma
--max-vram <float> maximum VRAM budget in GiB for graph-cut segmented execution. 0 disables
graph splitting; -1 auto-detects free VRAM minus 1 GiB
graph splitting; a negative value auto-detects free VRAM, sparing the
specified value (e.g. -0.5 will keep at least 0.5 GiB free)
--force-sdxl-vae-conv-scale force use of conv scale on sdxl vae
--offload-to-cpu place the weights in RAM to save VRAM, and automatically load them into VRAM
when needed