Commit Graph

193 Commits

Author SHA1 Message Date
comfyanonymous 9953f22fce Add --fast argument to enable experimental optimizations.
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 1b3eee672c Fix potential issue with multi devices. 2024-08-20 10:46:36 -04:00
comfyanonymous 045377ea89 Add a --reserve-vram argument if you don't want comfy to use all of it.
--reserve-vram 1.0 for example will make ComfyUI try to keep 1GB vram free.

This can also be useful if workflows are failing because of OOM errors but
in that case please report it if --reserve-vram improves your situation.
2024-08-19 17:16:18 -04:00
comfyanonymous be0726c1ed Remove duplication. 2024-08-19 15:26:50 -04:00
comfyanonymous 39fb74c5bd Fix bug when model cannot be partially unloaded. 2024-08-13 03:57:55 -04:00
comfyanonymous 74e124f4d7 Fix some issues with TE being in lowvram mode. 2024-08-12 23:42:21 -04:00
comfyanonymous b8ffb2937f Memory tweaks. 2024-08-12 15:07:11 -04:00
comfyanonymous ad76574cb8 Fix some potential issues with the previous commits. 2024-08-12 00:23:29 -04:00
comfyanonymous 5c69cde037 Load TE model straight to vram if certain conditions are met. 2024-08-11 23:52:43 -04:00
comfyanonymous 1de69fe4d5 Fix some issues with inference slowing down. 2024-08-10 16:21:25 -04:00
comfyanonymous 55ad9d5f8c Fix regression. 2024-08-09 03:36:40 -04:00
comfyanonymous 037c38eb0f Try to improve inference speed on some machines. 2024-08-08 17:29:27 -04:00
comfyanonymous 66d4233210 Fix. 2024-08-08 15:16:51 -04:00
comfyanonymous 08f92d55e9 Partial model shift support. 2024-08-08 14:45:06 -04:00
comfyanonymous 6969fc9ba4 Make supported_dtypes a priority list. 2024-08-07 15:00:06 -04:00
comfyanonymous b334605a66 Fix OOMs happening in some cases.
A cloned model patcher sometimes reported a model was loaded on a device
when it wasn't.
2024-08-06 13:36:04 -04:00
comfyanonymous c14ac98fed Unload models and load them back in lowvram mode no free vram. 2024-08-06 03:22:39 -04:00
comfyanonymous 8edbcf5209 Improve performance on some lowend GPUs. 2024-08-05 16:24:04 -04:00
comfyanonymous f7a5107784 Fix crash. 2024-08-03 16:55:38 -04:00
comfyanonymous 91be9c2867 Tweak lowvram memory formula. 2024-08-03 16:44:50 -04:00
comfyanonymous 03c5018c98 Lower lowvram memory to 1/3 of free memory. 2024-08-03 15:14:07 -04:00
comfyanonymous 2ba5cc8b86 Fix some issues. 2024-08-03 15:06:40 -04:00
comfyanonymous 1e68002b87 Cap lowvram to half of free memory. 2024-08-03 14:50:20 -04:00
comfyanonymous ba9095e5bd Automatically use fp8 for diffusion model weights if:
Checkpoint contains weights in fp8.

There isn't enough memory to load the diffusion model in GPU vram.
2024-08-03 13:45:19 -04:00
comfyanonymous d965474aaa Make ComfyUI split batches a higher priority than weight offload. 2024-08-01 16:39:59 -04:00
comfyanonymous a6decf1e62 Fix bfloat16 potentially not being enabled on mps. 2024-08-01 16:18:44 -04:00
comfyanonymous 1aa9cf3292 Make lowvram more aggressive on low memory machines. 2024-08-01 12:11:57 -04:00
comfyanonymous 5f98de7697 Load flux t5 in fp8 if weights are in fp8. 2024-08-01 11:05:56 -04:00
comfyanonymous 7ad574bffd Mac supports bf16 just make sure you are using the latest pytorch. 2024-08-01 09:42:17 -04:00
comfyanonymous e2382b6adb Make lowvram less aggressive when there are large amounts of free memory. 2024-08-01 03:58:58 -04:00
comfyanonymous 6425252c4f Use fp16 as the default vae dtype for the audio VAE. 2024-06-16 13:12:54 -04:00
comfyanonymous 0ec513d877 Add a --force-channels-last to inference models in channel last mode. 2024-06-15 01:08:12 -04:00
Simon Lui 5eb98f0092
Exempt IPEX from non_blocking previews fixing segmentation faults. (#3708) 2024-06-13 18:51:14 -04:00
comfyanonymous 0e49211a11 Load the SD3 T5xxl model in the same dtype stored in the checkpoint. 2024-06-11 17:03:26 -04:00
comfyanonymous 104fcea0c8 Add function to get the list of currently loaded models. 2024-06-05 23:25:16 -04:00
comfyanonymous b1fd26fe9e pytorch xpu should be flash or mem efficient attention? 2024-06-04 17:44:14 -04:00
comfyanonymous b249862080 Add an annoying print to a function I want to remove. 2024-06-01 12:47:31 -04:00
comfyanonymous bf3e334d46 Disable non_blocking when --deterministic or directml. 2024-05-30 11:07:38 -04:00
comfyanonymous 0920e0e5fe Remove some unused imports. 2024-05-27 19:08:27 -04:00
comfyanonymous 6c23854f54 Fix OSX latent2rgb previews. 2024-05-22 13:56:28 -04:00
comfyanonymous 8508df2569 Work around black image bug on Mac 14.5 by forcing attention upcasting. 2024-05-21 16:56:33 -04:00
comfyanonymous 09e069ae6c Log the pytorch version. 2024-05-20 06:22:29 -04:00
comfyanonymous 19300655dd Don't automatically switch to lowvram mode on GPUs with low memory. 2024-05-17 00:31:32 -04:00
Simon Lui f509c6fe21
Fix Intel GPU memory allocation accuracy and documentation update. (#3459)
* Change calculation of memory total to be more accurate, allocated is actually smaller than reserved.

* Update README.md install documentation for Intel GPUs.
2024-05-12 06:36:30 -04:00
comfyanonymous fa6dd7e5bb Fix lowvram issue with saving checkpoints.
The previous fix didn't cover the case where the model was loaded in
lowvram mode right before.
2024-05-12 06:13:45 -04:00
comfyanonymous 49c20cdc70 No longer necessary. 2024-05-12 05:34:43 -04:00
comfyanonymous e1489ad257 Fix issue with lowvram mode breaking model saving. 2024-05-11 21:55:20 -04:00
Simon Lui a56d02efc7
Change torch.xpu to ipex.optimize, xpu device initialization and remove workaround for text node issue from older IPEX. (#3388) 2024-05-02 03:26:50 -04:00
comfyanonymous 258dbc06c3 Fix some memory related issues. 2024-04-14 12:08:58 -04:00
comfyanonymous 0a03009808 Fix issue with controlnet models getting loaded multiple times. 2024-04-06 18:38:39 -04:00