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--fast now takes a number as argument to indicate how fast you want it.

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The idea is that you can indicate how much quality vs speed you want.

At the moment:

--fast 2 enables fp16 accumulation if your pytorch supports it.
--fast 5 enables fp8 matrix mult on fp8 models and the optimization above.

--fast without a number enables all optimizations.
This commit is contained in:
comfyanonymous
2025-02-28 02:48:20 -05:00
parent eb4543474b
commit cf0b549d48
3 changed files with 4 additions and 3 deletions
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2
comfy/ops.py
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@@ -360,7 +360,7 @@ def pick_operations(weight_dtype, compute_dtype, load_device=None, disable_fast_
if scaled_fp8 is not None:
return scaled_fp8_ops(fp8_matrix_mult=fp8_compute, scale_input=True, override_dtype=scaled_fp8)
if fp8_compute and (fp8_optimizations or args.fast) and not disable_fast_fp8:
if fp8_compute and (fp8_optimizations or args.fast >= 5) and not disable_fast_fp8:
return fp8_ops
if compute_dtype is None or weight_dtype == compute_dtype: