Files
b1d4c65524 model: Add MiniMax-M3 (MSA: MiniMax Sparse Attention) support (#24908)
* Add preliminary MiniMax-M3 support

Text-only port that re-uses existing components: MiniMax-M2 style GQA with
per-head QK-norm and partial rotary, DeepSeek-V3 style leading-dense and
routed/shared experts, and swigluoai activation. Sparse attention is not
yet supported (dense fallback); vision tower and MTP heads are dropped.

* MiniMax-M3 vision tower (mmproj + clip graph)

* Delete m3_vision_ref.py

* Update clip.cpp

* MSA

* Update constants.py

* Update minimax.py

* Cache creation. Working withotu flash attention

* Added flash attention for sparse layers

* Decomposed slow cpu OP into GPU + CPU ops. Massive speedup over long ctx

* Rewrote indexer op to be cuda native. Modified flash attention to match per group block picking

* Implement sparse attention calc out of stock ops.

* Fix a cache allocation and cont issue

* Fixed -fa auto crash, flagged debug spots

* Delete vocab.json

* Delete model.safetensors.index.json

* Delete generation_config.json

* Delete Minimax directory

* Handled multi stream case to fall back on Dense Attention

* Development scaffolding cleanup. No functional change to the decode or
4-way paths. Full debug harness remains at <8136a9c68ed7a5eb009aa67bba3fda8062f4648f> for reproducing the
selection-parity validation.

* Remove redundant comment from minimax-m3.cpp

* Changed 3 Gelu Ops for vision into Gelu_erf ops

* Assert that n_kv is multiple of 128

* Rename MSA index tensors to indexer convention

Note: All GGUFs generated before this change will need to be regenerated.

* Fix incorrect Assert

* Review driven changes (#3)

* Remove comment from conversion minimax.py

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Remove whitespaces from constants.py

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Tighten comment in minimax.py

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* inherit MiniMax-M3 from MiniMax-M2

* drop dead text_config fallbacks

* Add indexer writer methods

* Reuse LLM_FFN_SWIGLU_OAI_MOE

* Remove duplicate  indexer setters, add only block_size/local_blocks, follow value naming convention

* Fix conversion error /gguf_writer.py

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Update gguf-py/gguf/gguf_writer.py

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Update gguf-py/gguf/tensor_mapping.py

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Update conversion/minimax.py

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Update conversion/minimax.py

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Remove whitespace in src/llama-kv-cache.cpp

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Remove Whitespace in Update src/llama-model.h

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Remove whitespace in src/llama-hparams.h

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* remove multimodal code upon maintainer request. Will be made as a separate PR

* Whitespace clean in tensor_mapping.py

* Log cache size on launch, block ctx shift, support prompt caching

Log indexer cache size on launch

Disallow ctx shift

Support prompt caching

* Update minimax-m3.cpp

* Optimize implementation, add multi stream support. 

Fully rewrote minimax-m3.cpp for speed and buffer size gains:

Unified the 4-way + decode, 1 FA call per layer instead of 4, with the groups mapped onto ne[3]

Custom CPU op now emits block-level mask, expanded on GPU, which causes CPU to GPU transfer to shrinks at prefill

Decode: ~25 nodes/layer vs ~50, no per-group concats/conts

Unified selection semantics, so both regimes rank bs + local bias (position-anchored local force), which means prefill/decode can no longer disagree on selection

can_reuse on the MSA bias input. Graph reuse at decode restored (was rebuilding the full graph every token)

In-place mask adds, shrinking compute buffer ~6.8 to ~4.2 GiB at ub2048/62k

Multi-stream: MSA now runs with -np N when kv_unified=false. Decode stays batched across streams (still 1 FA call), prefill loops per stream. dense fallback only for --kv-unified + multi-seq

Measured effect on expert offload bound setup: decode 6.2(4WAY)–7.15(MSA_decode) -> 7.7~7.8 t/s, flat from 5k to 60k+. prefill around 10% faster. buffer about 20% smaller, multi-user support.

* set default cache type to F32

* Fix potential DSA double indexer cache  allocation bug, only allocate in-cache k_idx for archs that opt in

* remove F16 downcasts in MSA attention, force F32 indexer score accum

* Add Minimax eos to llama vocab

* Guard edge case where idx cache can become stale after a tail trim

* Update llama-kv-cache.h

* Update llama-kv-cache.cpp

* Update llama-kv-cache.cpp

* Update llama-kv-cache.h

* Update llama-kv-cache.cpp

* Review driven changes

* style fix

* indexer hparams are required

* fix tests

* fix lint

---------

Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>
Co-authored-by: Xuan Son Nguyen <son@huggingface.co>
2026-07-26 19:43:45 +02:00
..
2023-08-25 09:26:05 +03:00

gguf

This is a Python package for writing binary files in the GGUF (GGML Universal File) format.

See convert_hf_to_gguf.py as an example for its usage.

Installation

pip install gguf

Optionally, you can install gguf with the extra 'gui' to enable the visual GGUF editor.

pip install gguf[gui]

API Examples/Simple Tools

examples/writer.py — Generates example.gguf in the current directory to demonstrate generating a GGUF file. Note that this file cannot be used as a model.

examples/reader.py — Extracts and displays key-value pairs and tensor details from a GGUF file in a readable format.

gguf/scripts/gguf_dump.py — Dumps a GGUF file's metadata to the console.

gguf/scripts/gguf_set_metadata.py — Allows changing simple metadata values in a GGUF file by key.

gguf/scripts/gguf_convert_endian.py — Allows converting the endianness of GGUF files.

gguf/scripts/gguf_new_metadata.py — Copies a GGUF file with added/modified/removed metadata values.

gguf/scripts/gguf_editor_gui.py — Allows for viewing, editing, adding, or removing metadata values within a GGUF file as well as viewing its tensors with a Qt interface.

Development

Maintainers who participate in development of this package are advised to install it in editable mode:

cd /path/to/llama.cpp/gguf-py

pip install --editable .

Note: This may require to upgrade your Pip installation, with a message saying that editable installation currently requires setup.py. In this case, upgrade Pip to the latest:

pip install --upgrade pip

Automatic publishing with CI

There's a GitHub workflow to make a release automatically upon creation of tags in a specified format.

  1. Bump the version in pyproject.toml.
  2. Create a tag named gguf-vx.x.x where x.x.x is the semantic version number.
git tag -a gguf-v1.0.0 -m "Version 1.0 release"
  1. Push the tags.
git push origin --tags

Manual publishing

If you want to publish the package manually for any reason, you need to have twine and build installed:

pip install build twine

Then, follow these steps to release a new version:

  1. Bump the version in pyproject.toml.
  2. Build the package:
python -m build
  1. Upload the generated distribution archives:
python -m twine upload dist/*

Run Unit Tests

From root of this repository you can run this command to run all the unit tests

python -m unittest discover ./gguf-py -v

TODO

  • Include conversion scripts as command line entry points in this package.