DarthAffe/stable-diffusion.cpp
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feat: add generic DiT support to spectrum cache (#1336)

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rmatif 2026-03-15 09:41:05 +01:00 committed by GitHub
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4 changed files with 6 additions and 6 deletions
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2
examples/cli/README.md
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@ -139,7 +139,7 @@ Generation Options:
--high-noise-skip-layers (high noise) layers to skip for SLG steps (default: [7,8,9])
-r, --ref-image reference image for Flux Kontext models (can be used multiple times)
--cache-mode caching method: 'easycache' (DiT), 'ucache' (UNET), 'dbcache'/'taylorseer'/'cache-dit' (DiT block-level),
'spectrum' (UNET Chebyshev+Taylor forecasting)
'spectrum' (UNET/DiT Chebyshev+Taylor forecasting)
--cache-option named cache params (key=value format, comma-separated). easycache/ucache:
threshold=,start=,end=,decay=,relative=,reset=; dbcache/taylorseer/cache-dit: Fn=,Bn=,threshold=,warmup=;
spectrum: w=,m=,lam=,window=,flex=,warmup=,stop=. Examples:

4
examples/common/common.hpp
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@ -1513,11 +1513,11 @@ struct SDGenerationParams {
on_ref_image_arg},
{"",
"--cache-mode",
"caching method: 'easycache' (DiT), 'ucache' (UNET), 'dbcache'/'taylorseer'/'cache-dit' (DiT block-level)",
"caching method: 'easycache' (DiT), 'ucache' (UNET), 'dbcache'/'taylorseer'/'cache-dit' (DiT block-level), 'spectrum' (UNET/DiT Chebyshev+Taylor forecasting)",
on_cache_mode_arg},
{"",
"--cache-option",
"named cache params (key=value format, comma-separated). easycache/ucache: threshold=,start=,end=,decay=,relative=,reset=; dbcache/taylorseer/cache-dit: Fn=,Bn=,threshold=,warmup=. Examples: \"threshold=0.25\" or \"threshold=1.5,reset=0\"",
"named cache params (key=value format, comma-separated). easycache/ucache: threshold=,start=,end=,decay=,relative=,reset=; dbcache/taylorseer/cache-dit: Fn=,Bn=,threshold=,warmup=; spectrum: w=,m=,lam=,window=,flex=,warmup=,stop=. Examples: \"threshold=0.25\" or \"threshold=1.5,reset=0\"",
on_cache_option_arg},
{"",
"--cache-preset",

2
examples/server/README.md
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@ -129,7 +129,7 @@ Default Generation Options:
--skip-layers layers to skip for SLG steps (default: [7,8,9])
--high-noise-skip-layers (high noise) layers to skip for SLG steps (default: [7,8,9])
-r, --ref-image reference image for Flux Kontext models (can be used multiple times)
--cache-mode caching method: 'easycache' (DiT), 'ucache' (UNET), 'dbcache'/'taylorseer'/'cache-dit' (DiT block-level)
--cache-mode caching method: 'easycache' (DiT), 'ucache' (UNET), 'dbcache'/'taylorseer'/'cache-dit' (DiT block-level), 'spectrum' (UNET/DiT Chebyshev+Taylor forecasting)
--cache-option named cache params (key=value format, comma-separated). easycache/ucache:
threshold=,start=,end=,decay=,relative=,reset=; dbcache/taylorseer/cache-dit: Fn=,Bn=,threshold=,warmup=. Examples:
"threshold=0.25" or "threshold=1.5,reset=0"

4
src/stable-diffusion.cpp
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@ -1797,9 +1797,9 @@ public:
}
}
} else if (cache_params->mode == SD_CACHE_SPECTRUM) {
bool spectrum_supported = sd_version_is_unet(version);
bool spectrum_supported = sd_version_is_unet(version) || sd_version_is_dit(version);
if (!spectrum_supported) {
LOG_WARN("Spectrum requested but not supported for this model type (only UNET models)");
LOG_WARN("Spectrum requested but not supported for this model type (only UNET and DiT models)");
} else {
SpectrumConfig spectrum_config;
spectrum_config.w = cache_params->spectrum_w;