Spectrum for WAN fixed: ~1.56x speedup in setup, upstream compatibility restored
The author has updated their Spectrum node for WAN in ComfyUI, fixing issues caused by upstream changes and achieving a 1.56x speedup in their setup.
Why it matters
The updated Spectrum node for WAN in ComfyUI can provide a significant speedup in certain Stable Diffusion setups, which is important for improving the efficiency and productivity of AI-powered image generation workflows.
Key Points
- 1Spectrum node for WAN in ComfyUI was updated to restore upstream compatibility
- 2Achieved ~1.56x speedup in the author's setup, with 35.7% less wall time
- 3Speedup was more significant for high-noise passes (1.73x faster) than low-noise passes (1.38x faster)
- 4Forecasted steps accounted for 33.3% of the total steps, contributing to the speedup
Details
The author's Spectrum node for WAN in ComfyUI stopped working due to upstream changes, so they made updates to restore compatibility while ensuring backwards compatibility. In their test setup, they saw a 1.56x average end-to-end speedup, with 35.7% less wall time. The speedup was more significant for the high-noise passes (1.73x faster) compared to the low-noise passes (1.38x faster). This was due to the forecasted steps accounting for 33.3% of the total steps. The author notes that the relative speedup can be increased by sacrificing more of the lightning speedup, reducing the weight even more or fully disabling it, which would result in more steps being forecasted. However, this would also increase the total runtime compared to a regular full-weight lightning run.
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