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Ggml

Ggml is a portable C/C++ tensor library for machine learning, providing SIMD-optimized kernels, CPU, GPU, NPU and browser backends, quantization formats, and WebAssembly support without runtime memory allocations.

Independent OpenViST project profile, based on linked sources.

Ggml — OpenViST project profile in AI Developer Tools & SDKs.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Ggml when a machine-learning component needs portable C/C++ tensor operations, low-bit numeric formats or documented execution paths spanning conventional processors, accelerators and WebAssembly.

Who it is for

  • C and C++ developers building machine-learning software.
  • Engineers targeting multiple processor or accelerator backends.
  • Developers working with quantized tensor workloads.
  • Learners exploring a compact matrix-multiplication example.

Documented uses

  • Build a reusable tensor-computation foundation for machine-learning applications.
  • Target machine-learning workloads across CPU, GPU, NPU and browser environments.
  • Use 2- to 8-bit integer quantization or MXFP4 and NVFP4 microscaling formats.
  • Study a minimal C/C++ matrix-multiplication implementation.
Before you choose

Requirements & limits

The public repository provides source-build instructions and identifies the project as MIT-licensed. It is available for Windows, Linux, macOS, Web and self-hosted development environments.

  • Choose it when dependency-free C/C++ implementation is important.
  • Check whether the required target is covered by the listed CPU, GPU, NPU or WebAssembly support.
  • Assess whether the documented quantization and microscaling formats match the intended workload.
  • Plan the surrounding application or inference software separately because ggml is a library, not a complete end-user service.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Build ggml from source

Create a Release build of the ggml library using the repository’s documented CMake process.

Before you start

  • A local copy of the public ggml repository.
  • CMake and a C++ build environment.
  • A supported target platform such as Windows, Linux, macOS or WebAssembly.

Steps

  1. Clone the ggml repository.

  2. Enter the repository and create a build directory.

  3. Run CMake configuration from the build directory.

  4. Build the project in Release configuration with the documented build command.

Expected outcome

A locally built ggml project is produced from the source repository.

Guide limitations

  • The source instructions document building the project but do not specify application integration, backend selection or deployment steps.
  • The build command shown uses eight parallel jobs; suitable job counts for a particular machine are not established.
Evidence and transparency

Sources & review

Source record details
Source availability
Active
Sources checked
2 October 2026
Original website title
ggml-org/ggml · Official homepage title · retained in its source language