Find a file
Titaniumtown f8e30266d2
sycl: coalesce the ssm_conv window loads (#26612)
test-backend-ops perf -o SSM_CONV on an Arc Pro B70, interleaved A/B against
master, 6 reps, us/run:

  ne_a=[515,3328,1,1] ne_b=[4,3328,1,1]   n_t=512     97.68 -> 52.95   1.85x
  ne_a=[937,8192,1,1] ne_b=[4,8192,1,1]   n_t=934    516.16 -> 276.13  1.87x
  ne_a=[4,3328,1,1]   ne_b=[4,3328,1,1]   n_t=1        2.73 -> 2.71    flat

llama-bench on qwen35 27B Q4_K - Medium (48 of its 64 blocks run ssm_conv),
-ngl 99 -fa 1 -ctk f16 -ctv f16, interleaved passes of r=3:

  -b 2048 -ub 2048  pp2048  1045.1 / 1043.5 / 1043.7 -> 1069.5 / 1066.3 / 1065.9  +2.2%
  -b 2048 -ub 512   pp2048   771.8 /  772.7          ->  785.5 /  786.6           +1.8%
  -b 2048 -ub 512   tg128     23.81 /  23.88         ->   23.87 /  23.86          flat
2026-08-07 21:09:32 +03:00
.devops devops : add llama in all docker images (#25035) 2026-06-26 15:15:48 +02:00
.gemini contributing: tighten AI usage policy (#18388) 2025-12-29 16:01:32 +01:00
.github ci : onboard AMD ROCm CI with gfx1151 fixes (#26544) 2026-08-06 10:43:26 +02:00
.pi/gg pi : remove docs from system prompt (#24791) 2026-06-19 09:34:00 +03:00
app app : allow --version, --licenses & --help (#25054) 2026-06-26 23:18:11 +02:00
benches benches : add Nemotron 3 Nano on DGX Spark (#20652) 2026-03-16 21:50:43 +02:00
ci ci: abort if build requirements are missing (#26368) 2026-08-07 07:50:48 +03:00
cmake cmake : do not check for bin install dir (#23234) 2026-05-18 02:33:14 +02:00
common fit: Fix memory allocation for MTP layers (#26605) 2026-08-05 13:29:45 +02:00
conversion convert : fix DeepseekV4 rope parameters with transformers 5.x (#26673) 2026-08-06 16:06:52 +03:00
docs sycl : Support DSv4 OPs: LIGHTNING_INDEXER,DSV4_HC_COMB,DSV4_HC_POST,DSV4_HC_PRE (#26568) 2026-08-07 08:22:23 +03:00
examples sycl : update guide Q&A and script for device setting (#26442) 2026-08-07 08:18:47 +03:00
ggml sycl: coalesce the ssm_conv window loads (#26612) 2026-08-07 21:09:32 +03:00
gguf-py convert: Add endianness conversion for Q1 and TQ2 quantizations (#26618) 2026-08-05 18:06:09 +08:00
grammars docs : fix typos in CUDA-FEDORA.md and grammars/README.md (#24459) 2026-06-15 01:33:38 +08:00
include sampler : remove "full-context windows" from history-based samplers (#26524) 2026-08-04 21:28:55 +03:00
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 chat : add new template for DeepSeek V4 Flash 0731 (#26398) 2026-08-03 17:59:11 -05:00
pocs libs : rename libcommon -> libllama-common (#21936) 2026-04-17 11:11:46 +03:00
requirements model: add Mellum architecture (#23966) 2026-06-02 22:11:12 +03:00
scripts sync : ggml 2026-08-07 17:11:25 +03:00
skills mtmd: support Qwen3-TTS (note: breaking change to llama-tts binary) (#26254) 2026-08-04 17:26:15 +02:00
src model-loader : fix quantized reshaped tensor strides (#26672) 2026-08-06 15:21:44 +03:00
tests metal : fix NORM/RMS_NORM for row lengths that leave a partial simdgroup (#26708) 2026-08-07 21:09:07 +03:00
tools ui: Filesystem @mentions for Chat Form (#26715) 2026-08-07 18:45:54 +02:00
vendor vendor : apply patches for subprocess.h (#26606) 2026-08-05 11:26:20 +02:00
.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 common : Update stb_image.h to latest version (#9161) 2024-08-27 08:58:50 +03:00
.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 agents: clarify comment style and jinja knowledge (#26405) 2026-08-01 18:45:46 +02:00
AUTHORS authors : update (#19263) 2026-02-02 08:51:25 +02:00
build-xcframework.sh build : remove GGML_METAL_USE_BF16 from all build scripts (#26604) 2026-08-05 10:44:34 +02:00
CLAUDE.md contributing: tighten AI usage policy (#18388) 2025-12-29 16:01:32 +01:00
CMakeLists.txt common: add subproc.h wrapper, disabled on android/ios (#26102) 2026-07-26 20:54:25 +02:00
CMakePresets.json cmake : Add CMake presets for Linux and GCC (#14656) 2025-07-13 08:12:36 +03:00
CODEOWNERS HIP: remove rocWMMA FlashAttention (#26046) 2026-07-24 17:53:54 +02:00
CONTRIBUTING.md contrib : add guideline about the "merge ready" label (#26178) 2026-07-28 08:41:04 +03:00
convert_hf_to_gguf.py convert: add option to create separate dspark GGUF (#26452) 2026-08-02 23:16:31 +08:00
convert_hf_to_gguf_update.py Add support for Laguna XS.2 & M.1 (#25165) 2026-07-22 09:54:08 +08:00
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 fix(nix): remove non-functional llama-cpp cachix cache from flake.nix (#15295) 2025-08-13 11:21:31 -07:00
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 model: add Mellum architecture (#23966) 2026-06-02 22:11:12 +03:00
pyrightconfig.json ci : switch from pyright to ty (#20826) 2026-03-21 08:54:34 +01:00
README.md readme : refresh (#26280) 2026-07-30 16:14:37 +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 mtmd : DeepSeek-OCR image processing fixes, img_tool::resize padding refactor (#23345) 2026-05-20 17:37:10 +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 [In Progress] 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
  • stb-image - Single-header image format decoder, used by multimodal subsystem - Public domain
  • nlohmann/json - Single-header JSON library, used by various tools/examples - MIT License
  • miniaudio.h - Single-header audio format decoder, used by multimodal subsystem - Public domain
  • subprocess.h - Single-header process launching solution for C and C++ - Public domain