.. meta::
   :description: RCCL is a stand-alone library that provides multi-GPU and multi-node collective communication primitives optimized for AMD GPUs
   :keywords: RCCL, ROCm, library, API

.. _index:

******************
RCCL documentation
******************

The ROCm Communication Collectives Library (RCCL) is a stand-alone library
that provides multi-GPU and multi-node collective communication primitives
optimized for AMD GPUs. It uses PCIe and xGMI high-speed interconnects.
To learn more, see :doc:`what-is-rccl`

The RCCL public repository is located at `<https://github.com/ROCm/rccl>`_.

.. grid:: 2
  :gutter: 3

  .. grid-item-card:: Install

    * :ref:`RCCL installation guide <install>`

.. grid:: 2
  :gutter: 3

  .. grid-item-card:: How to

    * :ref:`using-nccl`
       
  .. grid-item-card:: API reference

    * :ref:`Library specification<library-specification>`
    * :ref:`api-library`
       
To contribute to the documentation, see
`Contributing to ROCm  <https://rocm.docs.amd.com/en/latest/contribute/contributing.html>`_.

You can find licensing information on the
`Licensing <https://rocm.docs.amd.com/en/latest/about/license.html>`_ page.