this post was submitted on 11 Sep 2023
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LocalLLaMA

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Community to discuss about LLaMA, the large language model created by Meta AI.

This is intended to be a replacement for r/LocalLLaMA on Reddit.

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Hi,

Just like the title says:

I'm try to run:

With:

  • koboldcpp:v1.43 using HIPBLAS on a 7900XTX / Arch Linux

Running :

--stream --unbantokens --threads 8 --usecublas normal

I get very limited output with lots of repetition.

Illustrattion

I mostly didn't touch the default settings:

Settings

Does anyone know how I can make things run better?

EDIT: Sorry for multiple posts, Fediverse bugged out.

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[–] rufus@discuss.tchncs.de 1 points 1 year ago* (last edited 1 year ago) (8 children)

What I'd advise you to do is something like this:

python3 koboldcpp.py --unbantokens --contextsize 8192 --stream models/mythomax-l2-13b.Q4_K_M.gguf

If you're unsure about your settings, just use mirostat:

python3 koboldcpp.py --unbantokens --contextsize 8192 --usemirostat 2 5.0 0.1 --stream models/mythomax-l2-13b.Q4_K_M.gguf

You can download MythoMax 13b ~~and there's an 33b~~. It's probably not 'the best' model out there, but I think a pretty solid one. It isn't super picky with the settings and does a variety of tasks well. [Edit: Watch out when using the 33b. I think it's broken. It generates lots of repetetive words for me.]

Notes: You probably need to add your --usecublas normal to that.

Fiddling with the contextsize comes with many caveats. Skip this parameter if you don't need it. Or learn how scaling works and which model needs which of the two methods with what kinds of numbers. Letting koboldcpp do the ropeconfig itself, makes it assume a few things that are probably wrong. You oftentimes have to set the 'ropeconfig' explicitly when doing any funny stuff. (Use a normal model and have it in gguf format. That's most likely to get the automatic configuration doing something sane.)

Regarding --unbantokens: You can delete that from your commandline and it will make the EOS token disappear, hence making the model unable to stop generating text. But, it'll also make it write an end to the story, following it up with "In the end ..." and then another "And together, they lived..." and then following it up with more and more repetitive stuff because the story is over yet you made it unable to stop.

With 'unbantokens' and once it won't continue on its own: Tick "Allow Editing", append a line break (or two) and hit 'Generate' again.

You can set the 'Amount to Generate' to something you like. You don't need to put in my value.

Getting your model to work: It is a LLaMA 1 based model. So it originally had 2048 tokens context. It is in the old ggml format, so koboldcpp probably doesn't know that. And judging by the name, I guess it was trained to have an 8k context with linear scaling. So I'd guess the following parameters are correct. And you absolutely need to specify it explicitly when using a model like this:

--contextsize 8192 --ropeconfig 0.25 10000

I don't have the time to fiddle with the parameters to get them right, so I just used mirostat. Feel free to instead try a few of the presets and play with the numbers. Maybe see if someone commented a good configuration for your favorite model somewhere.

python3 koboldcpp.py --unbantokens --contextsize 8192 --ropeconfig 0.25 10000 --usemirostat 2 5.0 0.1 --stream models/WizardLM-Uncensored-SuperCOT-StoryTelling-30b-superhot-8k.ggmlv3.q4_1.bin

Regarding the prompt format: I'm not sure what a 'storywrite' model expects. You're giving it an instruction, but don't write it in any of the usual formats. That's most likely wrong in any case. If these models are trained with plain stories (which I don't know), you have to start with the story and let it autocomplete. You can't give it an instruction and hope for the best, it'll lead to subpar results. If you give it instructions, do it correctly. Find out the correct prompt format for that specific model.

But maybe just don't use this model. These SuperHOT or 8k/16k/... models are from a time where we didn't have NTK-aware scaling yet. Nowadays you might just use the latter together with a 'normal' model. And as long as there isn't a reason against it, maybe use a model based on Llama2 which has twice the context to begin with (compared to the old LLaMA).

There are many other models like that out there. In fact there are many many models out there. And many of them aren't very good or are just obsolete. Don't pick one based on the fancy name. Choose one other people use. Rely on word of mouth. If it's good, other people will use it and maybe also talk about it, recommend good settings and how to prompt it. For popular models, you'll get that information on top.

https://huggingface.co/models?sort=modified&search=storywrite

Judging by the output you can see on my screenshots, the MythoMax writes way better stories anyways.

Here are some more prompt ideas:

### Instruction:
Write an award winning childrens book about a stray cat finding a new home in a small european village. Make sure the narration and characters are vivid, detailed and generally warm and likable.

### Response:
### Instruction:
You are the worlds greatet writer. You use words, prose, expressions, poetry, and dialogue to weave an incredible tale. Write in the style of book chapters. Write a fairy tale for children about a stray cat finding a new home in a small european village.

### Response:
[–] darkeox@kbin.social 2 points 1 year ago (1 children)

Thanks a lot for your input. It's a lot to stomach but very descriptive which is what I need.

I run this Koboldcpp in a container.

What I ended up doing and which was semi-working is:

  • --model "/app/models/mythomax-l2-13b.ggmlv3.q5_0.bin" --port 80 --stream --unbantokens --threads 8 --contextsize 4096 --useclblas 0 0

In the Kobboldcpp UI, I set max response token to 512 and switched to an Instruction/response model and kept prompting with "continue the writing", with the MythoMax model.

But I'll be re-checking your way of doing it because the SuperCOT model seemed less streamlined and more qualitative in its story writing.

[–] rufus@discuss.tchncs.de 1 points 1 year ago* (last edited 1 year ago) (1 children)

Alright. I have another remark: Add --ropeconfig 1.0 10000 after your --contextsize 4096.

You're not using a 'gguf' file but the ggml format that was used up until a few days ago. The older ggml format doesn't save any metadata with the model. That means KoboldCpp doesn't know what the original context size was. And doesn't know if it needs to scale to get to your specified 4096 tokens. I've read enough on the github page to know this fails. It'll assume a default context size of 2048 (which was the correct value for LLaMA1) and use scaling to get to the 4096 tokens. But that's wrong in this case, because in this case it's a Llama2 model and that already has 4096 tokens context size.

'--ropeconfig 1.0 10000' means 'don't scale' and that's the right thing in this case.

You can verify this by looking at the debug information KoboldCpp logs on startup. When I start it with your mentioned arguments, it says:

Using automatic RoPE scaling (scale:1.000, base:32000.0)

And that is about a 2x factor, which is wrong. I'm sorry this is so complicated, you basically need to know all that stuff. But that's the reason why we're changing the file format to 'gguf' which will make that easier in the future. Just add the 'ropeconfig' and you'll be fine for now.

If you want, you can learn more about 'scaling' here: https://github.com/LostRuins/koboldcpp/wiki#koboldcpp-general-usage-and-troubleshooting

Other than that: Have fun. I hope you get the technical details out of the way quickly so you can focus on the fun stuff. If you got any questions, feel free to ask. I always like to read what other people are up to. And their results (or interesting fails ;)

(I think 4096 is plenty for the first tries with this. If your stories get longer and you want 8192 context with a Llama2-based model like MythoMax-L2 use this: --contextsize 8192 --ropeconfig 1.0 32000 and don't forget to also adjust the slider in the Kobold Lite Web UI.)

[–] darkeox@kbin.social 2 points 1 year ago (1 children)

Don't be sorry, you're being so helpful, thank you a lot.

I finally replicated your config:

localhost/koboldcpp:v1.43 --port 80 --threads 4 --contextsize 8192 --useclblas 0 0 --smartcontext --ropeconfig 1.0 32000 --stream "/app/models/mythomax-l2-kimiko-v2-13b.Q5_K_M.gguf"

And had satisfying results! The performance of LLaMA2 really is nice to have here as well.

[–] rufus@discuss.tchncs.de 1 points 1 year ago* (last edited 1 year ago) (1 children)

Looks good to me.

For reference: I think i got the settings in my screenshot from Reddit. But they seem to have updated the post since. The current recommended settings have a temperature and some other settings that are closer to what I've seen in the default settings. I've tested those (new to me) settings and they also work for me. Maybe I also adapted the settings from here.

And I've linked a 33b MythoMax model in the previous post that's probably not working properly. I've edited that part and crossed it out. But you seem to use a 13b version anyways. That's good.

I've tried a few models today. I think another promising model for writing stories is Athena. For your information: I get inspiration from this list. But beware, that's for ERP, so erotic role play. So some models from that ranking are probably not safe for work (or for minors). But other benchmarks often test for factual knowledge and answering questions. And in my experience the models good at those things are not necessarily good at creative tasks. But that's more my belief. I don't know if it's actually true. And this ranking also isn't very scientific.

[–] darkeox@kbin.social 2 points 1 year ago (1 children)

Ah thank you for the trove of information. What would be the best general knowledge model according to you?

[–] rufus@discuss.tchncs.de 1 points 1 year ago* (last edited 1 year ago) (1 children)

Well, I'm not that up to date anymore. I think MythoMax 13b is pretty solid. Also for knowledge. But I can't be bothered anymore to read up on things twice weekly. That news is probably already 3 weeks old and there will be a (slightly) better one out there now. And it gets outperformed by pretty much every one of the big 70b models. But I can't run them on my hardware, so I wouldn't know.

This benchmark ranks them by several scientific tests. You can hide the 70b models and scarlett-33b seems to be a good contender. Or the older Platypus models directly below. But be cautious, sometimes these models look better on paper than they really are.

Also regarding 'knowledge': I don't know about your application. Just in case you're not aware of this... Language models hallucinate and regularly just make up stuff. Even expensive and big models will do this. The models we play with, even more so. Just be aware of it.

And lastly: There is another good community here on Lemmy: !fosai@lemmy.world You can find a few tutorials and more people there, too. And have a look at the 'About' section or stickied posts there. They linked more benchmarks and info.

[–] darkeox@kbin.social 2 points 1 year ago

Alright, thanks for the info & additional pointers.

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