comfyanonymous
16bd3b8441
Add add_weight_wrapper function to model patcher.
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Functions can now easily be added to wrap/modify model weights.
2025-02-12 05:55:35 -05:00
comfyanonymous
d9c5f38fa7
Make fast fp8 take a bit less peak memory.
2024-12-24 18:05:19 -05:00
Haoming
bb62946a9e
clamp input ( #5928 )
2024-12-07 14:00:31 -05:00
comfyanonymous
0474115c2a
Fix lowvram edge case.
2024-10-22 16:34:50 -04:00
comfyanonymous
46dbfc6b5c
Optimizations to --fast and scaled fp8.
2024-10-22 02:12:28 -04:00
comfyanonymous
215cf1d843
Mixed precision diffusion models with scaled fp8.
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This change allows supports for diffusion models where all the linears are
scaled fp8 while the other weights are the original precision.
2024-10-21 18:12:51 -04:00
comfyanonymous
567711396b
Support scaled fp8 t5xxl model.
2024-10-20 22:27:00 -04:00
comfyanonymous
ec9b115f28
Fixed model merging issue with scaled fp8.
2024-10-20 06:24:31 -04:00
comfyanonymous
077a32ca01
Support diffusion models with scaled fp8 weights.
2024-10-19 23:47:42 -04:00
comfyanonymous
90105ed662
Use the lowvram cast_to function for everything.
2024-10-17 17:25:56 -04:00
comfyanonymous
6b0d97384c
Add a weight_dtype fp8_e4m3fn_fast to the Diffusion Model Loader node.
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This is used to load weights in fp8 and use fp8 matrix multiplication.
2024-10-09 19:43:17 -04:00
comfyanonymous
8f990c3fa4
Remove useless line.
2024-09-23 02:32:29 -04:00
comfyanonymous
5c7e72f3b1
Load controlnet in fp8 if weights are in fp8.
2024-09-21 04:50:12 -04:00
comfyanonymous
b9590ea077
Fix onnx export.
2024-08-23 17:52:47 -04:00
comfyanonymous
262abf2310
Try to fix some lora issues.
2024-08-22 15:32:18 -04:00
comfyanonymous
a1a6c213a5
Make --fast work on pytorch nightly.
2024-08-21 14:01:41 -04:00
Svein Ove Aas
b4bedcdc11
Replace use of .view with .reshape ( #4522 )
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When generating images with fp8_e4_m3 Flux and batch size >1, using --fast, ComfyUI throws a "view size is not compatible with input tensor's size and stride" error pointing at the first of these two calls to view.
As reshape is semantically equivalent to view except for working on a broader set of inputs, there should be no downside to changing this. The only difference is that it clones the underlying data in cases where .view would error out. I have confirmed that the output still looks as expected, but cannot confirm that no mutable use is made of the tensors anywhere.
Note that --fast is only marginally faster than the default.
2024-08-21 11:21:48 -04:00
comfyanonymous
d8af5d17b5
Remove useless line, adjust windows default reserved vram.
2024-08-21 00:47:19 -04:00
comfyanonymous
6c68634351
Speed up fp8 matrix mult by using better code.
2024-08-20 22:53:26 -04:00
comfyanonymous
7c0c89e70c
Add --fast argument to enable experimental optimizations.
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Optimizations that might break things/lower quality will be put behind
this flag first and might be enabled by default in the future.
Currently the only optimization is float8_e4m3fn matrix multiplication on
4000/ADA series Nvidia cards or later. If you have one of these cards you
will see a speed boost when using fp8_e4m3fn flux for example.
2024-08-20 11:55:51 -04:00
comfyanonymous
05938809a4
Make cast_to a nop if weight is already good.
2024-08-20 10:46:36 -04:00
comfyanonymous
b35cfc0926
Less broken non blocking?
2024-08-18 16:53:17 -04:00
comfyanonymous
22b99fdff4
Disable non blocking.
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It fixed some perf issues but caused other issues that need to be debugged.
2024-08-18 14:38:09 -04:00
comfyanonymous
acc2ed8389
Enable non blocking transfers in lowvram mode.
2024-08-18 10:29:33 -04:00
comfyanonymous
7f0000bc5a
Lower T5 memory usage by a few hundred MB.
2024-07-31 00:52:34 -04:00
comfyanonymous
36b0b2b215
Use common function for casting weights to input.
2024-07-30 10:49:14 -04:00
comfyanonymous
1eb91dbfbb
Initial support for the stable audio open model.
2024-06-15 12:14:56 -04:00
comfyanonymous
94a508adc2
Fix OSX latent2rgb previews.
2024-05-22 13:56:28 -04:00
comfyanonymous
6bcdcf1dc9
Fix control loras breaking.
2024-03-14 09:30:21 -04:00
comfyanonymous
7e04cdafc0
Lower memory usage for loras in lowvram mode at the cost of perf.
2024-03-13 20:07:27 -04:00
comfyanonymous
e5a0f735be
Stable Cascade Stage B.
2024-02-16 13:02:03 -05:00
comfyanonymous
3d6af7145d
Remove useless import.
2024-01-19 15:38:05 -05:00
comfyanonymous
59e4fbf255
Greatly improve lowvram sampling speed by getting rid of accelerate.
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Let me know if this breaks anything.
2023-12-22 14:38:45 -05:00
comfyanonymous
98cc7883b7
Refactor comfy.ops
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comfy.ops -> comfy.ops.disable_weight_init
This should make it more clear what they actually do.
Some unused code has also been removed.
2023-12-11 23:27:13 -05:00
comfyanonymous
f64ac62540
Use faster manual cast for fp8 in unet.
2023-12-11 18:24:44 -05:00
comfyanonymous
58b39151a4
Switch text encoder to manual cast.
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Use fp16 text encoder weights for CPU inference to lower memory usage.
2023-12-10 23:00:54 -05:00
comfyanonymous
03e65605de
All the unet ops with weights are now handled by comfy.ops
2023-12-04 03:12:18 -05:00
comfyanonymous
c3caf2b8aa
Refactor.
2023-11-11 01:11:06 -05:00
comfyanonymous
1aff0360c3
Initialize text encoder to target dtype.
2023-08-23 21:01:15 -04:00
comfyanonymous
280659a6ee
Support for Control Loras.
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Control loras are controlnets where some of the weights are stored in
"lora" format: an up and a down low rank matrice that when multiplied
together and added to the unet weight give the controlnet weight.
This allows a much smaller memory footprint depending on the rank of the
matrices.
These controlnets are used just like regular ones.
2023-08-18 11:59:51 -04:00
comfyanonymous
16c535a309
Properly disable weight initialization in clip models.
2023-06-14 20:13:08 -04:00
comfyanonymous
6bbd86a061
Disable default weight values in unet conv2d for faster loading.
2023-06-14 19:46:08 -04:00
comfyanonymous
14508d7a5b
Speed up model loading a bit.
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Default pytorch Linear initializes the weights which is useless and slow.
2023-06-14 12:09:41 -04:00
