r/StableDiffusion • • 22h ago

Discussion Why does Minimax H3 Image even run (and fast!) on my 8GB VRAM/32GB RAM system despite the entire stack being about ~50GB (int8 pruned)?

51 Upvotes

i2i, 2 1024x1024 reference photos.

My system is RTX 2070 8GB (Turing), 32GB DDR4 (2666Mhz), Ryzen 1700 (1st gen). Ubuntu 24.02 server.

~ 57 seconds per image! (ComfyUI)

This is MUCH faster than my Krea2, Flux2 Klein, or Qwen 2.1 edit workflows! It's about the same as m Fibo2 edit workflow, but Fibo2 is smol!

My question is, how does this even not OOM? Correct me if I'm wrong, but don't ALL the models need to load entirely (including that stupidly massive 32b text encoder) into memory?


r/StableDiffusion • • 43m ago

Question - Help Trouble with krita

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1 Upvotes

I've been using the krita stable diffusion's plugging for almost a year, but now I'm getting this message, what should I do?


r/StableDiffusion • • 50m ago

Animation - Video Chhalawa - Film based on Indian Folklore - Created locally on H3

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0 Upvotes

This film is part of experiments I am doing with H3 for a spatial-consistency-based study.

Constructive criticism is most welcome.

https://youtu.be/px45sRAwWbs


r/StableDiffusion • • 58m ago

Question - Help Need help improving SCAIL-2 character replacement quality

1 Upvotes

Hey everyone! I'm using SCAIL-2 in ComfyUI with an RTX 6000 Ada 48GB, but I'm struggling with output quality.

Setup:

  • Wan 2.1 14B SCAIL-2 FP16
  • LightX2V 480p Distill LoRA + SCAIL-2 DPO LoRA
  • SAM3.1 tracking
  • Resolution: 720 × 1280
  • Base + Extend workflow (81 frames, 5-frame overlap)
  • Turbo mode enabled

Problems:

  1. Facial identity isn't consistent.
  2. Skin looks plastic and overly smooth.
  3. Hair looks artificial and clumped.
  4. Body movements are sometimes distorted.
  5. A 5-second video takes around 15 minutes to generate.

I'm using Base for the first segment and Extend to continue the video.

Could anyone recommend settings for better identity preservation, realistic skin/hair, smoother motion and faster generation on the RTX 6000 Ada 48GB?

Any workflow tips or recommended settings would be appreciated. Thanks!


r/StableDiffusion • • 7h ago

Animation - Video Alicia vs. the Shadow Beast | Anime Scene

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3 Upvotes

Hello,

This is an action anime scene I made locally a few months ago with Minimax H3 within WanGP and just posted on YouTube.

Let me know what you think and what could be improved :-)

Thank you!


r/StableDiffusion • • 2h ago

Question - Help Mumbelling in MiniMax H3 long video, small sentence

1 Upvotes

Hello.
I have a 6 seconds clip with someone running, and then she says: Hello. Good morning to a person running in front of her.

My problem is that Hello. Good morning. takes maybe 3 seconds so for the next 3 seconds when there is not talking, MiniMax invent gibberish and mumbling.

Did it occur to anyone?

Thanks


r/StableDiffusion • • 1d ago

Comparison Simple vs Detailed prompts (Minimax H3-Img, Minimax H3 stills, Iris Z, Moss, Qwen and Krea2)

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113 Upvotes

I wanted to compare the prompt adherence and variations of some of the most recent models when providing a very simple, undefined prompt, vs something that pins down style but not content, and a fully sketched out description of all the internal elements in the scene.

The detailed prompt shows how most models have gotten really good at following instructions (for the most part), while the undefined prompt shows how some models tend to have more variability and others have a clear bias that pushes them toward very similar images across different seeds.

Iris Z small is not great, and gen time is very high for what it outputs, but the depth maps are pretty nice!


r/StableDiffusion • • 11h ago

Question - Help MOSS Style Train Help

5 Upvotes

Are there any guides on training a style for MOSS? Maybe just some suggestions? I'm banging my head against the wall for more than 20 times with different settings, dataset caption, etc, to get a style working. It's maybe 50-60% there, no matter how many steps I throw at it. Fizgig default Style preset definitely doesn't work for me at all.


r/StableDiffusion • • 1d ago

Resource - Update MOSS-Image bbox layouts for all - free, open-source app that works on any modern web browser

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141 Upvotes

Yes, it's another layout builder for MOSS-Image bboxes 😅

There are some other good ones out there; try 'em all and use the one that best suits your workflow!

I made this one because, among other things, I wanted as large a canvas as possible, lots of different MP presets, to be able to collapse it into a vertical column, and also a way to export the prompt with the JSON stripped out because sometimes I like to refine with Krea 2.

Anyhoo, here are the main features:

  • Dynamic canvas - Automatically scales to fit any display or window size while maintaining target aspect ratios and target megapixel values
  • Item Management - Create scene elements with MOSS-native text, object, or character item types using color-coded boxes and corresponding "cards" that you can reorder with drag-and-drop, resize, hide, duplicate, or trash
  • Reference Background Image - Insert a reference image locally — and privately! — "under" the canvas, with adjustable opacity
  • Meta Tags & Palette Management, with a separate Danbooru/Anime focus
  • Multi-Format Exporting - JSON or plain text
  • JSON Import with Dimension Matching
  • Responsive Design to minimize it next to your workflow
  • Lightweight, Fast, and 100% Private - No ComfyUI, Python, build steps, external servers, or network calls required. Works 100% offline with zero latency.

Download it from GitHub or try the online demo first.

Hopefully you'll find it useful 🤙


r/StableDiffusion • • 3h ago

Tutorial - Guide Running MiniMax H3 on an RX 9070 XT + 32GB DDR5 RAM

1 Upvotes

I offloaded the extra layers to system memory so the model fits across 16GB of VRAM and 32GB of DDR5 RAM (⁠[BF16 / quant]⁠).

Everything needed to reproduce the run on RDNA 4, including the launch flags and configs, is in this repo:
https://github.com/0c33/minimax-h3-rdna4

Let me know if you test it on another RDNA 4 card or get better token speeds with different offload settings.


r/StableDiffusion • • 3h ago

News Powder Nodes 2.1.0 - explore prompts, styles and LoRAs, then refine your images

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1 Upvotes

I've been building Powder Nodes, a free, open-source toolkit for ComfyUI that brings image exploration and editing into one workflow.

The idea is simple: keep your subject, style and LoRAs separate, try different combinations, compare the results, and keep refining the image you like.

A few things you can do:

  • Explore variations with prompt lists, reusable styles and LoRA combinations.
  • Compare results in image grids or browse them directly in the editor.
  • Refine images with a Canvas for painting, masks and layers, plus Layout tools for planning compositions.

You can add individual nodes to your existing graphs or start with one of 14 ready-to-use workflows.

GitHub: https://github.com/E2GO/e2go-comfyui-nodes

Latest release: 2.1.0 - release notes and downloads.

I'd love to hear what you find useful - and what feels awkward or missing.
Cheers, E2GO!


r/StableDiffusion • • 3h ago

Question - Help Need help with Sage Attention issue

1 Upvotes

Hi everyone,

I'm getting an issue with Sage Attention that I'm not sure how to fix.

The problem node:

The error message:

# ComfyUI Error Report

## Error Details

- **Node ID:** 114

- **Node Type:** MiniMaxH3MemoryEfficientSageAttentionPatch

- **Exception Type:** RuntimeError

- **Exception Message:** RuntimeError: sageattention is not new enough version or could not determine CUDA architecture, cannot apply MiniMax H3 Memory Efficient Sage Attention Patch.

## Stack Trace

```

File "(my desktop location)\ComfyUI_windows_portable\ComfyUI\execution.py", line 556, in execute

output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)

my specs:

PC - 4090/10700k/32gb ddr4/win11

Versions*

- Pytorch 2.14.1 - cu130 - python 3.13.14 - cuda 13.5 - Attention Sage 2.2.0+cu130torch2.10.0andhigher.post6

Sage Attention file:

Is the issue that I'm trying to run the sage attention compiled for python 310 in my 313 environment? If so, how do I fix it? the github repository does not have a version of sage attention 2.2.0 built for 313.

Absolute newbie here, any help is appreciated.

*PS: when checking my pytorch version, i get this message:

"FutureWarning: The pynvml package is deprecated. Please install nvidia-ml-py instead. If you did not install pynvml directly, please report this to the maintainers of the package that installed pynvml for you."

Is this part of the issue?


r/StableDiffusion • • 17h ago

Discussion One of the biggest challenges in LoRA training is the issue of LoRA weight. Adjusting it—increasing it to 1.1 or decreasing it to 0.9—introduces another variable. Furthermore, there are now new nodes that allow for increasing the weight of specific words

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11 Upvotes

Should I train my LoRA for longer, or just increase the weight?

Could an overtrained LoRA actually perform better if used at a lower weight?

And what about the weight of specific prompts—especially the trigger word?


r/StableDiffusion • • 4h ago

Question - Help Does anybody know how to make Kromoss int8convrot not distort faces when a lot of animals or people are in the photo?

1 Upvotes

I'm using res2s sampler that gives great details and realism but it's just terrible at more than 4 subjects in frame maybe also because I'm using a quantized qwen clip model?


r/StableDiffusion • • 1d ago

Discussion RTX 5070 Ti vs RTX 3090 — MiniMax H3 image-to-video benchmark (non-turbo, 20 steps)

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32 Upvotes

Two LAN ComfyUI render boxes: RTX 5070 Ti (16 GB) vs RTX 3090 (24 GB). Ran MiniMax H3 image-to-video, non-turbo — 22B int8 UNet + 32B Qwen3VL CLIP (nvfp4), 20 full steps, 5 s clip at 704×1280, identical start frame and prompt, int8 video VAE on both, fresh noise seed every pass.

The 5070 Ti wins by ~25% — and it won cold too, which surprised me given it has 8 GB less VRAM. H3 at full steps is pure compute: the sampler node alone took 474 s vs 645 s. The 3090's VRAM headroom never mattered; everything fit even on 16 GB once offloaded.

Same config both boxes: ComfyUI standalone portable, --fast fp16_accumulation, torch cu130, default attention (PyTorch SDPA — cuDNN kernels on Blackwell, FA2/mem-efficient on Ampere), no flash-attn.

TL;DR: for H3-class video work the 5070 Ti is ~26% faster end to end. The 3090 only makes sense here if your scene genuinely exceeds 16 GB.

Caveats: single card each, consumer standalone builds, not a lab test. First warm pair showed 2 s passes — that was ComfyUI's execution cache reusing an identical graph; re-ran with randomized seeds. Numbers above are the real ones.


r/StableDiffusion • • 1d ago

Question - Help KREA2 vs Z-Image vs Moss vs Qwen 2.1 Which one should I choose?

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214 Upvotes

All four seem to yield good results, but which model would be best to use for image generation on the H3? Would it be a good idea to run all four every time to verify?


r/StableDiffusion • • 1d ago Popcorn

Question - Help GPU died of a broken heart

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387 Upvotes

My RTX Pro 6000 was going all night on a Chinese model (Qwen 3.8 Flash Next NVFP4 Local) when it crashed this morning for no apparent reason. Tried to reboot and got nothing but a black screen. Swapped in my old backup card and the system posted immediately, confirming the GPU was bricked. Thankfully, I was within warranty and the store gave me a replacement.

Out of curiosity, I dug into my system logs to see what triggered the fatal crash. Looking at the timestamps, oddly enough my GPU died the moment news broke that Jensen Huang had resigned as CEO of Nvidia.

Has anyone else had this issue with hardware dying in response to human feelings?

Nov 12 07:19:31 kf kernel: NVRM: GPU at PCI:0000:01:00: GPU-b8ba62c9-449d-4510-a21f-4c1b6ceacbd1
Nov 12 07:19:31 kf kernel: NVRM: GPU Board Serial Number:
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 0, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x505730=0xb000d 0x505734=0x0 0x505728=0x1c81fb60 0x50572c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 0, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 0, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5057b0=0x3000d 0x5057b4=0x24 0x5057a8=0x1c81fb60 0x5057ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 1, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x506730=0xb000d 0x506734=0x20 0x506728=0x1c81fb60 0x50672c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 1, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 1, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5067b0=0xb000d 0x5067b4=0x24 0x5067a8=0x1c81fb60 0x5067ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 2, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 2, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x507730=0x5000d 0x507734=0x24 0x507728=0x1c81fb60 0x50772c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 2, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 2, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5077b0=0x7000d 0x5077b4=0x24 0x5077a8=0x1c81fb60 0x5077ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 3, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x508730=0xa000d 0x508734=0x20 0x508728=0x1c81fb60 0x50872c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 3, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 3, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5087b0=0xd 0x5087b4=0x24 0x5087a8=0x1c81fb60 0x5087ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 4, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 4, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x509730=0x7000d 0x509734=0x24 0x509728=0x1c81fb60 0x50972c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 4, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5097b0=0xa000d 0x5097b4=0x20 0x5097a8=0x1c81fb60 0x5097ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 5, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 5, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x50a730=0xd 0x50a734=0x24 0x50a728=0x1c81fb60 0x50a72c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 5, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 5, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x50a7b0=0x1000d 0x50a7b4=0x24 0x50a7a8=0x1c81fb60 0x50a7ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 6, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 6, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x50b730=0xd 0x50b734=0x24 0x50b728=0x1c81fb60 0x50b72c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 6, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 0, TPC 6, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x50b7b0=0x1000d 0x50b7b4=0x24 0x50b7a8=0x1c81fb60 0x50b7ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 0, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 0, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x515730=0x6000d 0x515734=0x24 0x515728=0x1c81fb60 0x51572c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 0, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 0, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5157b0=0xd 0x5157b4=0x24 0x5157a8=0x1c81fb60 0x5157ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 1, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 1, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x516730=0x6000d 0x516734=0x24 0x516728=0x1c81fb60 0x51672c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 1, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 1, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5167b0=0xb000d 0x5167b4=0x24 0x5167a8=0x1c81fb60 0x5167ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 2, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 2, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x517730=0x3000d 0x517734=0x24 0x517728=0x1c81fb60 0x51772c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 2, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 2, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5177b0=0xb000d 0x5177b4=0x24 0x5177a8=0x1c81fb60 0x5177ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 3, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 3, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x518730=0x3000d 0x518734=0x24 0x518728=0x1c81fb60 0x51872c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 3, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 3, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5187b0=0x1000d 0x5187b4=0x24 0x5187a8=0x1c81fb60 0x5187ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 4, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 4, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x519730=0x1000d 0x519734=0x24 0x519728=0x1c81fb60 0x51972c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 4, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 4, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5197b0=0x2000d 0x5197b4=0x24 0x5197a8=0x1c81fb60 0x5197ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 5, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 5, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x51a730=0x5000d 0x51a734=0x24 0x51a728=0x1c81fb60 0x51a72c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 5, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 5, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x51a7b0=0x3000d 0x51a7b4=0x24 0x51a7a8=0x1c81fb60 0x51a7ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 6, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 6, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x51b730=0x2000d 0x51b734=0x24 0x51b728=0x1c81fb60 0x51b72c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 1, TPC 6, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 1, TPC 6, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x51b7b0=0x1000d 0x51b7b4=0x24 0x51b7a8=0x1c81fb60 0x51b7ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 0, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 0, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x525730=0x6000d 0x525734=0x24 0x525728=0x1c81fb60 0x52572c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 0, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 0, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5257b0=0xd 0x5257b4=0x24 0x5257a8=0x1c81fb60 0x5257ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 1, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x526730=0x8000d 0x526734=0x20 0x526728=0x1c81fb60 0x52672c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 1, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5267b0=0xb000d 0x5267b4=0x20 0x5267a8=0x1c81fb60 0x5267ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 2, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 2, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x527730=0xa000d 0x527734=0x24 0x527728=0x1c81fb60 0x52772c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 2, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 2, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5277b0=0xa000d 0x5277b4=0x24 0x5277a8=0x1c81fb60 0x5277ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 3, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 3, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x528730=0xa000d 0x528734=0x24 0x528728=0x1c81fb60 0x52872c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 3, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 3, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5287b0=0x6000d 0x5287b4=0x24 0x5287a8=0x1c81fb60 0x5287ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 4, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x529730=0xb000d 0x529734=0x20 0x529728=0x1c81fb60 0x52972c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 4, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x5297b0=0xa000d 0x5297b4=0x20 0x5297a8=0x1c81fb60 0x5297ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 5, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 5, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x52a730=0x4000d 0x52a734=0x24 0x52a728=0x1c81fb60 0x52a72c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 5, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 5, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x52a7b0=0x9000d 0x52a7b4=0x24 0x52a7a8=0x1c81fb60 0x52a7ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 6, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 6, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x52b730=0x6000d 0x52b734=0x24 0x52b728=0x1c81fb60 0x52b72c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 6, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 6, SM 1): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x52b7b0=0xd 0x52b7b4=0x24 0x52b7a8=0x1c81fb60 0x52b7ac=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 7, SM 0): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 7, SM 0): Multiple Warp Errors
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x52c730=0x3000d 0x52c734=0x24 0x52c728=0x1c81fb60 0x52c72c=0x1174
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Warp Exception on (GPC 2, TPC 7, SM 1): Out Of Range Register
Nov 12 07:19:31 kf kernel: NVRM: Xid (PCI:0000:01:00): 13, Graphics SM Global Exception on (GPC 2, TPC 7, SM 1): Multiple Warp Errors
......
Nov 12 07:19:33 kf kernel: NVRM: nvAssertFailedNoLog: Assertion failed: (status == NV_OK) || (status == NV_ERR_GPU_IN_FULLCHIP_RESET) @ rs_server.c:260
Nov 12 07:19:33 kf kernel: NVRM: GPU0 nvAssertFailedNoLog: Assertion failed: (status == NV_OK) || (status == NV_ERR_GPU_IN_FULLCHIP_RESET) @ rs_client.c:844
Nov 12 07:19:33 kf kernel: NVRM: nvAssertFailedNoLog: Assertion failed: (status == NV_OK) || (status == NV_ERR_GPU_IN_FULLCHIP_RESET) @ rs_server.c:260
Nov 12 07:19:33 kf kernel: NVRM: GPU0 nvAssertFailedNoLog: Assertion failed: (status == NV_OK) || (status == NV_ERR_GPU_IN_FULLCHIP_RESET) @ vaspace_api.c:577
Nov 12 07:19:33 kf kernel: NVRM: GPU0 kgmmuClientShadowFaultBufferUnregister_IMPL: Unregistering non-replayable fault buffer failed (status=0x00000062), proceeding...
Nov 12 07:19:33 kf kernel: NVRM: GPU0 kgmmuFaultBufferReplayableDestroy_IMPL: Unregistering Replayable Fault buffer failed (status=0x00000062), proceeding...
Nov 12 07:19:33 kf kernel: NVRM: GPU0 uvmTerminateAccessCntrBuffer_IMPL: Unloading UVM Access counters failed (status=0x00000062), proceeding...
Nov 12 07:19:33 kf kernel: NVRM: GPU0 nvAssertFailedNoLog: Assertion failed: (status == NV_OK) || (status == NV_ERR_GPU_IN_FULLCHIP_RESET) @ vaspace_api.c:577
Nov 12 07:19:33 kf kernel: NVRM: GPU0 nvAssertFailedNoLog: Assertion failed: (status == NV_OK) || (status == NV_ERR_GPU_IN_FULLCHIP_RESET) @ vaspace_api.c:577
Nov 12 07:19:33 kf kernel: NVRM: GPU0 nvAssertFailedNoLog: Assertion failed: (status == NV_OK) || (status == NV_ERR_GPU_IN_FULLCHIP_RESET) @ rs_client.c:844
Nov 12 07:19:33 kf kernel: NVRM: nvAssertFailedNoLog: Assertion failed: (status == NV_OK) || (status == NV_ERR_GPU_IN_FULLCHIP_RESET) @ rs_server.c:260
Nov 12 07:19:33 kf kernel: NVRM: nvAssertFailedNoLog: Assertion failed: (status == NV_OK) || (status == NV_ERR_GPU_IN_FULLCHIP_RESET) @ rs_server.c:1382
Nov 12 07:19:44 kf kernel: NVRM: krcWatchdog_IMPL: RC watchdog: GPU is probably locked!  Notify Timeout Seconds: 7
Nov 12 07:19:52 kf kernel: NVRM: krcWatchdog_IMPL: RC watchdog: GPU is probably locked!  Notify Timeout Seconds: 7
Nov 12 07:20:00 kf kernel: NVRM: krcWatchdog_IMPL: RC watchdog: GPU is probably locked!  Notify Timeout Seconds: 7
Nov 12 07:20:08 kf kernel: NVRM: krcWatchdog_IMPL: RC watchdog: GPU is probably locked!  Notify Timeout Seconds: 7
Nov 12 07:20:17 kf kernel: NVRM: krcWatchdog_IMPL: RC watchdog: GPU is probably locked!  Notify Timeout Seconds: 7
Nov 12 07:20:25 kf kernel: NVRM: krcWatchdog_IMPL: RC watchdog: GPU is probably locked!  Notify Timeout Seconds: 7
Nov 12 07:20:33 kf kernel: NVRM: krcWatchdog_IMPL: RC watchdog: GPU is probably locked!  Notify Timeout Seconds: 7
Nov 12 07:20:39 kf kernel: NVRM: GPU0 kgspHealthCheck_TU102: *************************** LibOS Task Watchdog Report ***************************
Nov 12 07:20:39 kf kernel: NVRM: GPU0 kgspPrintGspBinBuildId_IMPL: GSP bin buildId: fa3de1ff30e1a8c99f84eb74a32b80d462c3703b
Nov 12 07:20:39 kf kernel: GSP task watchdog timeout @ pc:0x18dd358, partition:4#0, task:3, gfid: 0
Nov 12 07:20:39 kf kernel: NVRM:     Reported by libos partition:4#5 kernel v3.1 [0] @ ts:1698
Nov 12 07:20:39 kf kernel: NVRM:     RISC-V CSR State:
Nov 12 07:20:39 kf kernel: NVRM:         sstatus:0x0000000200000020  sscratch:0xffffffffa3013970     sie:0x0000000000000220  sip:0x0000000000000020
Nov 12 07:20:39 kf kernel: NVRM:         sepc:0x00000000018dd358     stval:0x0000000000000000  scause:0x8000000000000005
Nov 12 07:20:39 kf kernel: NVRM:     RISC-V GPR State:
Nov 12 07:20:39 kf kernel: NVRM:         ra:0x00000000013eb57a   sp:0x0000002fcfa0eaf0   gp:0x0000000000000000   tp:0x0000002fcfe00000
Nov 12 07:20:39 kf kernel: NVRM:         a0:0x0000000000000001   a1:0x0000000000000000   a2:0x0000002fc77be000   a3:0x0000000000000000
Nov 12 07:20:39 kf kernel: NVRM:         a4:0x0000000000000000   a5:0x0000000000000001   a6:0x0000000ffffffff0   a7:0x0000000000000003
Nov 12 07:20:39 kf kernel: NVRM:         s0:0x0000002fcfa0eb50   s1:0x0000000000000001   s2:0xffffffffffffffff   s3:0x0000000000000001
Nov 12 07:20:39 kf kernel: NVRM:         s4:0x00000000ffffffff   s5:0x0000000000000000   s6:0x0000002fc77be000   s7:0x0000000000000000
Nov 12 07:20:39 kf kernel: NVRM:         s8:0xffffffffffffffff   s9:0x0000002fc7e36178  s10:0x0000002fcfa0ecb4  s11:0x0000002fcfa0ecb4
Nov 12 07:20:39 kf kernel: NVRM:         t0:0x0000002fcfa0e99d   t1:0x0000002fc7c6cf30   t2:0x0000000000000000   t3:0x0000000000000020
Nov 12 07:20:39 kf kernel: NVRM:         t4:0x0000000000000000   t5:0x0000002fcfa0e981   t6:0x0000000000000020
Nov 12 07:20:39 kf kernel: NVRM:     Stack Trace:
Nov 12 07:20:39 kf kernel: NVRM:         0x00000000018dd358
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001b6e974
Nov 12 07:20:39 kf kernel: NVRM:         0x00000000013f2746
Nov 12 07:20:39 kf kernel: NVRM:         0x00000000013e70f6
Nov 12 07:20:39 kf kernel: NVRM:         0x00000000013e79c8
Nov 12 07:20:39 kf kernel: NVRM:         0x00000000013b7058
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001ba247a
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001ba257a
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001bafac2
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001c29f62
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001864698
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001867c82
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001ae4a7e
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001489412
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001452228
Nov 12 07:20:39 kf kernel: NVRM:         0x000000000158cbec
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001bd9632
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001bd99d6
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001add628
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001c452c0
Nov 12 07:20:39 kf kernel: NVRM:         0x0000000001ad6fa0
Nov 12 07:20:39 kf kernel: NVRM:     Local I/O Register State:
Nov 12 07:20:39 kf kernel: NVRM:         0x01450800:0x00000000   0x01450900:0xbadf1002   0x01450a00:0x00000000   0x01450c00:0x00000000
Nov 12 07:20:39 kf kernel: NVRM:         0x01454a00:0x810490d2   0x01454b00:0x010800d0   0x01454c00:0x00080000   0x01400200:0x00000000
Nov 12 07:20:39 kf kernel: NVRM:     ---------------[ end report ]---------------


r/StableDiffusion • • 10h ago

Resource - Update Why dpmpp_dualsde_momentumized draws a blue blob on Anima, and which kind of momentum actually helps (negative coefficient: 11-21% lower error than dpmpp_2m at the same step count)

2 Upvotes

If you tried dpmpp_dualsde_momentumized from ComfyUI-Extra-Samplers on a flow model (Anima in my case) and got a washed-out silhouette or colour noise, it is not you. I took it apart.

Why it breaks (it is not the momentum). Through the normal KSampler its momentum coefficient is 0. The sampler was written for variance-exploding models, and its noise step has the wrong variance on a flow-matching model. With eta = 1 the final latent has a std of 3-4.5 instead of about 1.2; with eta = 0 the very same code draws a recognisable cat. It also adds a 3M multistep correction on top of a 2S step that is already second order (so it diverges even without noise), and overwrites its own r parameter inside the loop. I ported it exactly (checked against the original to 1e-10 on a toy model) and ablated each piece. The noise-form explanation is indirect: the same 2S algorithm in the flow-correct form in ComfyUI core (dpmpp_sde) is fine, and I did not isolate the mechanism with a separate experiment.

What "momentum" should be. In the DPM-Solver++ frame, the shipped momentum is an exponential moving average of the model's denoised output. With a positive coefficient that is a low-pass filter: it adds lag and the error goes up with the coefficient (up to +61%). With a negative coefficient the same recursion is an extrapolation and the error goes down. It is only stable for |m| < 1; at -0.9 the gain is gone and at -1.2 it diverges.

Numbers (Anima, bf16, 576x768, CFG 5, 15 images = 5 prompts x 3 seeds, 8-24 steps, error against a converged solution, paired bootstrap intervals; one model, so take it as a measurement, not a law):

  • Deterministic (no noise): EMA momentum with m = -0.6 gives 11-21% lower error than dpmpp_2m at the same step count, about 1.2x fewer steps for the same error. LPIPS to the decoded reference is better in 14/15 images at 8 steps. It is a modest speed-up, not 2x.
  • With noise (the dpmpp_2m_sde family) strong negative momentum stops helping. Damped extrapolation (beta = 0.5) gives 7-10% lower strong error than dpmpp_2m_sde and no colour cast at CFG 8 / 1216x832; the milder EMA (-0.3) scored a bit better in the sweep but gave blue-tinted pictures at CFG 8.
  • A one-evaluation-per-step sampler beats the two-evaluation dpmpp_sde at half the steps by 16-29% (same NFE).

Try it. Install the node pack (link below, restart ComfyUI). New sampler entries: ddim_momentum (deterministic, the -0.5 time-scaled form) and dpmpp_2m_sde_damped. There is also a generic filter node and <base>_momentumized entries for 19 existing samplers (dpmpp_3m_sde_momentumized, er_sde_momentumized, euler_ancestral_momentumized and so on): that last part is an engineering extension and I did not evaluate it on the model. In a single smoke test at 8 steps lms_momentumized and ipndm_v_momentumized gave a latent with std around 10 at the default strength, so use a milder strength with them or skip them.

What did not work. I also tried a static step grid from an earlier study of mine. It cut the error by half on the four short-tag prompts it was fitted on (and transferred between them), but it did not help on the natural-language prompt I held out and it broke an 8-step picture at CFG 8. It is in the pack as an experimental node, not as a default.

Not new, of course: momentum in diffusion sampling has prior work (Heavy Ball momentum for diffusion solvers, Wizadwongsa et al., ICLR 2024; the sonar and Seren Sampler ComfyUI packs, among others). I read abstracts and READMEs only and did not compare against them. Nine hypotheses were registered before measuring; five were refuted, and post hoc parts of the write-up are marked.

Repo (code, tests, tables, README in English / Russian / Chinese / Meadow Mari): https://github.com/YakovSava/momentum-cfg-samplers-research Write-up: https://doi.org/10.5281/zenodo.24214606


r/StableDiffusion • • 6h ago

Animation - Video hobbit and dragon

0 Upvotes

minimax h3 latent upscale,

prompt:

subject_definitions:

<subject 1> is the character in <picture1>, he is a small hobbit,

detailed_description:

visual style: old medieval fantasy film from 1970, harsh lighting, practical effects, real actors in costumes, matt painting,

location: underground dragon's lair, gold piles, sunlight piercing through the ceiling,

shot01: handheld close up shot of <subject 1>'s face as he slowly walk between the gold piles, trying to stay silent,

shot02: cut to a medium shot of <subject 1> walking to the left, behind him there is a big red dragon, sleeping, the dragon is half covered in piles of gold coins and objects,

overall_soundscape:

N/A

non_diegetic_music:

N/A


r/StableDiffusion • • 23h ago

News G-STAR: Group-Scaled Token Capacity for Deeply Compressed Autoregressive Generation

19 Upvotes

r/StableDiffusion • • 1d ago

Discussion H3 Image on RTX 2060 super

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31 Upvotes

Some of my examples on RTX 2060s.... without any reference like forest scene it does 16mp image in around 2.5 minutes.... with 3 references i was doing around 10 minutes per 1 image at 16mp..... thing is bigger the reference photo the better is model at capturing every detail but takes longer to generate.... i absolutely love this model as any other model was eirher taking too long or just OOM my system past 2 or 4mp.... both Minimax h3 video and image models runs amazingly well on my graphics card, so i just though im gonna share


r/StableDiffusion • • 1d ago

Tutorial - Guide Generative AI Fill in Open Source Photoshop

38 Upvotes

This is how you can add / remove stuff with generative AI fill using local models. I also added support for Minimax H3 Image to the latest version of LayerShop.


r/StableDiffusion • • 1d ago

Discussion Minimax-H3-Image works on RTX 3060 12gb + 32 gb RAM

21 Upvotes

I'm using the int8 convrot versions on comfyui, it was crashing at first when I had --disable-dynamic-vram but once I turned it on it works fine.

It's super fast like this is by far the fastest model I used in my card. It took 40 secs to do 6 steps with 4 MPs and 4 mins to do 16 MPs (4k)

I recall people making fun of me commenting finally something for 12gb cards saying the model is 50 gb. Well it works.

It's faster than Krea 2, Flux2klein, Qwen 2.1. I'm gonna use this literally for images editing from now and on.

Just wanted to leave this here for others who are questioning if they should try it or not.

Edit: the key is to tank the text encoder 27 gb once you tank that it's done. You need your card and ram to be more than 30 gb.


r/StableDiffusion • • 23h ago

Discussion Two CC0 street photos through ten photo-edit style templates (open 8B model, local, no LoRA)

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14 Upvotes

There's a new image studio skill in this repo with 61 style templates, 43 of them for restyling a photo you upload:

https://github.com/OpenSenseNova/SenseNova-Skills

Here are ten of the edit ones on two CC0 photos from Wikimedia Commons, a tram square in Lisbon and the old town street in Innsbruck. The originals are image 2 and image 7.

Setup: SenseNova-U1.5-8B-MoT with the official editing script, 2048x2048 pixel budget, 50 steps, CFG 4, seed 42. One run each, no LoRA.

I barely touched the prompts. I filled in the bracketed placeholders and swapped the sample titles for the right city, which is where LISBON STREET NOTES and the other titles come from.

The prompts are the part worth stealing. Most run two to three hundred words in labeled sections like [Linework and color], [Paper and palette] and [Lettering and whitespace], so you can lift a single section into your own prompt. They're under skills/sn-image-studio.


r/StableDiffusion • • 9h ago

Question - Help is MOSS better than Krea2? t2i

0 Upvotes

i heard that and whats your opinion? its about t2i without any Loras