[New Model]: Codestral Mamba

[K-Mistele]

The model to consider.

Mamba Codestral: https://huggingface.co/mistralai/mamba-codestral-7B-v0.1

Highlights:

• SOTA 7B code model
• theoretically unlimited context length; tested up to 256k
• inference is linear-complexity with respect to sequence length, compared to transformers which is quadratic-complexity

The closest model vllm already supports.

Jamba seems to be the closest model, since it is Mamba-based: https://github.com/vllm-project/vllm/blob/main/vllm/model_executor/models/jamba.py

What's your difficulty of supporting the model you want?

Mamba is a non-transformer architecture, but there is already a mamba-based model supported, so it's unclear how difficult it would be to support.

[simon-mo]

cc @tlrmchlsmth who is working on it

[digantamisra98]

Any updates on this?

[tlrmchlsmth]

@digantamisra98 I have a branch where I have this working -- planning to land #6484 soon (possibly today) and will follow up with Mamba2 support afterwards (which will include support for Codestral Mamba)

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[tlrmchlsmth]

#9292 should land soon -- reopening