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Yuri Khrustalev 81aeaeb74b
gguf : align the data section relative to the GGUF start, not the file (#28993)
* gguf : align the data section relative to the GGUF start, not the file

gguf_init_from_file_ptr reads a GGUF from the current file position, but padded
the data section from file offset 0, so a GGUF embedded at an offset that is not
a multiple of the alignment loaded without error and returned wrong tensor data.

Also adds llama_adapter_lora_init_from_file_ptr, and disables mmap with a warning
when an embedded data section is not aligned, instead of asserting in ggml.

Assisted-by: Claude Opus 5

* llama : load lora from path through the FILE* variant

The test now checks that mmap is disabled only for an unaligned offset.

Assisted-by: Claude Fable 5.1

* Update ggml/src/gguf.cpp

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>

* Update include/llama.h

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>

* llama : error on unaligned mmap of an embedded GGUF, drop test-load-file-ptr

---------

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>
2026-09-17 09:19:44 +02:00
.devops nix : update deprecated expressions (#28145) 2026-09-07 15:59:45 +02:00
.gemini contributing: tighten AI usage policy (#18388) 2025-12-29 16:01:32 +01:00
.github ci: switch fast jobs back to github (#28959) 2026-09-16 16:50:26 +00:00
.pi/gg tests : add fusion baseline README and broaden fusion CI triggers (#28893) 2026-09-14 15:45:05 +03:00
app cmake : use PROJECT_SOURCE_DIR instead of CMAKE_SOURCE_DIR (#28771) 2026-09-15 05:26:09 +02:00
benches benches : add Nemotron 3 Nano on DGX Spark (#20652) 2026-03-16 21:50:43 +02:00
ci OpenVINO: optimize stateful decode and GPU MoE inference (#28638) 2026-09-15 12:29:19 +03:00
cmake CI: Use LLVM's OpenMP over MSVC_DEBUG_non_redist on Windows (#26678) 2026-08-20 15:42:26 +02:00
common Change max context length for auto-fitting with unified KV (#28849) 2026-09-16 16:08:50 +05:30
conversion model : add support for HrmTextForCausalLM (DFM Mimir 1B) (#27625) 2026-09-16 15:18:45 +02:00
docs OpenVINO: optimize stateful decode and GPU MoE inference (#28638) 2026-09-15 12:29:19 +03:00
examples cmake : use PROJECT_SOURCE_DIR instead of CMAKE_SOURCE_DIR (#28771) 2026-09-15 05:26:09 +02:00
ggml gguf : align the data section relative to the GGUF start, not the file (#28993) 2026-09-17 09:19:44 +02:00
gguf-py model : add support for HrmTextForCausalLM (DFM Mimir 1B) (#27625) 2026-09-16 15:18:45 +02:00
grammars common : implement common_schema internal representation for JSON schemas (#28736) 2026-09-12 16:14:50 -05:00
include gguf : align the data section relative to the GGUF start, not the file (#28993) 2026-09-17 09:19:44 +02:00
licenses refactor : remove libcurl, use OpenSSL when available (#18828) 2026-01-14 18:02:47 +01:00
media media : add transparent icon svg and png [no ci] (#15891) 2025-09-10 14:51:28 +03:00
models [Model] Support for Spark2_5ForCausalLM implementation (#27868) 2026-09-06 17:43:58 +02:00
pocs libs : rename libcommon -> libllama-common (#21936) 2026-04-17 11:11:46 +03:00
requirements py : lower numpy to 2.2.6 (#28654) 2026-09-09 15:56:27 +02:00
scripts CI: hip-quality-check: ignore spill added in bfdc32183d (#28909) 2026-09-14 21:25:22 +02:00
skills test: move tools/parser to tests (#27548) 2026-08-23 18:38:51 +02:00
src gguf : align the data section relative to the GGUF start, not the file (#28993) 2026-09-17 09:19:44 +02:00
tests gguf : align the data section relative to the GGUF start, not the file (#28993) 2026-09-17 09:19:44 +02:00
tools llama-bench: support --version to print build info (#28971) 2026-09-16 13:39:43 +08:00
vendor vendor : update cpp-httplib to 0.56.0 (#28787) 2026-09-12 10:15:08 +03:00
.clang-format fix: apply clang-format to CUDA macros (#16017) 2025-09-16 08:59:19 +02:00
.clang-tidy clang-tidy : disable warning about performance enum size (#16127) 2025-09-22 19:57:46 +02:00
.dockerignore docker : prebuild web UI for s390x build [no release] (#24829) 2026-06-20 05:54:42 -05:00
.ecrc cmake : use PROJECT_SOURCE_DIR instead of CMAKE_SOURCE_DIR (#28771) 2026-09-15 05:26:09 +02:00
.editorconfig ui: Restructure repo to use tools/ui folder and ui / UI / llama-ui / LLAMA_UI naming (#23064) 2026-05-16 02:02:40 +02:00
.flake8 llama : move end-user examples to tools directory (#13249) 2025-05-02 20:27:13 +02:00
.gitignore ui: PWA support (#23871) 2026-06-12 15:53:26 +02:00
.gitmodules ggml : remove kompute backend (#14501) 2025-07-03 07:48:32 +03:00
.pre-commit-config.yaml convert.py : add python logging instead of print() (#6511) 2024-05-03 22:36:41 +03:00
AGENTS.md arg: remove -no-cnv from cli [no ci] (#27542) 2026-08-22 15:53:56 +02:00
AUTHORS docs : update maintainer PRs link and regenerate AUTHORS (#28365) 2026-09-04 10:20:49 +03:00
build-xcframework.sh metal : add metallib build support for xcframework (#28163) 2026-09-02 07:45:56 +08:00
CLAUDE.md contributing: tighten AI usage policy (#18388) 2025-12-29 16:01:32 +01:00
CMakeLists.txt llama.cpp : bump version to 0.4.1 (#28900) 2026-09-14 17:01:05 +03:00
CMakePresets.json cmake : Add CMake presets for Linux and GCC (#14656) 2025-07-13 08:12:36 +03:00
CODEOWNERS docs: remove JG as CODEOWNER for test-llama-archs (#29003) 2026-09-17 08:14:58 +02:00
CONTRIBUTING.md docs: Rule of thumb for AI review time [no ci] (#28945) 2026-09-15 14:11:16 +02:00
convert_hf_to_gguf.py convert : add --fuse-qkv flag to fuse Q/K/V into QKV during HF-to-GGUF conversion (#22780) 2026-09-07 00:47:05 +08:00
convert_hf_to_gguf_update.py model : add support for HrmTextForCausalLM (DFM Mimir 1B) (#27625) 2026-09-16 15:18:45 +02:00
convert_llama_ggml_to_gguf.py ci : switch from pyright to ty (#20826) 2026-03-21 08:54:34 +01:00
convert_lora_to_gguf.py convert : fix lora base model arch retrieval (#24621) 2026-06-15 00:55:26 +02:00
flake.nix nix : update deprecated expressions (#28145) 2026-09-07 15:59:45 +02:00
LICENSE docs : Minor cleanups (#19252) 2026-02-02 08:38:55 +02:00
Makefile make : remove make in favor of CMake (#15449) 2025-08-20 13:31:16 +03:00
mypy.ini convert : partially revert PR #4818 (#5041) 2024-01-20 18:14:18 -05:00
pyproject.toml py : lower numpy to 2.2.6 (#28654) 2026-09-09 15:56:27 +02:00
pyrightconfig.json ci : switch from pyright to ty (#20826) 2026-03-21 08:54:34 +01:00
README.md docs : update maintainer PRs link and regenerate AUTHORS (#28365) 2026-09-04 10:20:49 +03:00
requirements.txt tool-call: fix Qwen 2.5 Coder support, add micro benchmarks, support trigger patterns for lazy grammars (#12034) 2025-03-05 13:05:13 +00:00
SECURITY.md security : clarify about AI-generated reports (#26579) 2026-08-05 13:27:06 +02:00
ty.toml py : lower numpy to 2.2.6 (#28654) 2026-09-09 15:56:27 +02:00

llama.cpp

llama

Quick start

A few options to get llama.cpp installed on your machine:

Once installed:

# Download and run a model directly from Hugging Face
llama cli -hf ggml-org/Qwen3.5-0.8B-GGUF

# Launch OpenAI-compatible API server
llama serve -hf ggml-org/Qwen3.5-0.8B-GGUF
VLM session with `llama cli` VLM session with llama cli Built-in web UI against `llama serve` running Qwen 3.6 Built-in web UI against llama serve

Description

The main goal of llama.cpp is to enable LLM (and VLM) inference with minimal setup and state-of-the-art performance on a wide range of hardware - locally and in the cloud.

  • Plain C/C++ implementation without any dependencies
  • Apple silicon is a first-class citizen - optimized via ARM NEON, Accelerate and Metal frameworks
  • AVX, AVX2, AVX512 and AMX support for x86 architectures
  • RVV, ZVFH, ZFH, ZICBOP and ZIHINTPAUSE support for RISC-V architectures
  • 1.5-bit, 2-bit, 3-bit, 4-bit, 5-bit, 6-bit, and 8-bit integer quantization for faster inference and reduced memory use
  • Custom CUDA kernels for running LLMs on NVIDIA GPUs (support for AMD GPUs via HIP and Moore Threads GPUs via MUSA)
  • Vulkan and SYCL backend support
  • CPU+GPU hybrid inference to partially accelerate models larger than the total VRAM capacity

The llama.cpp project is build on top of the ggml library.

Supported backends

Backend Target devices
BLAS All
BLIS All
CANN Ascend NPU
CUDA Nvidia GPU
HIP AMD GPU
Hexagon Snapdragon
IBM zDNN IBM Z & LinuxONE
MUSA Moore Threads GPU
Metal Apple Silicon
OpenCL Adreno GPU
OpenVINO [In Progress] Intel CPUs, GPUs, and NPUs
RPC All
SYCL Intel GPU
VirtGPU VirtGPU APIR
Vulkan GPU
WebGPU All
ZenDNN AMD CPU

Documentation

Tools

Development

Contributing

  • Contributors can open PRs
  • Collaborators will be invited based on contributions
  • Maintainers can push to branches in the llama.cpp repo and merge PRs into the master branch
  • Any help with managing issues, PRs and projects is very appreciated!
  • Read the CONTRIBUTING.md for more information

Acknowledgements

  • yhirose/cpp-httplib - Single-header HTTP server, used by llama-server - MIT license
  • nothings/stb - Single-header image format decoder, used by multimodal subsystem - Public domain
  • nlohmann/json - Single-header JSON library, used by various tools/examples - MIT License
  • mackron/miniaudio - Single-header audio format decoder, used by multimodal subsystem - Public domain
  • sheredom/subprocess.h - Single-header process launching solution for C and C++ - Public domain