UCC
===

.. toctree::
   :maxdepth: 1
   :caption: Contents:

About
-----

`UCC`_ is a collective communication operations API and library that is flexible, complete, and feature-rich for current and emerging programming models and runtimes.

.. note:: We use UCC in conjunction with the Open MPI 5.x installations available on Discoverer.

Supported versions
------------------

To check which UCC versions and build types are currently supported on Discoverer, execute on the login node:

.. code-block:: bash

 module avail ucc

The recipe followed to build the source code is available at:

https://gitlab.discoverer.bg/vkolev/recipes/-/tree/main/ucc

Loading/Compiler affinity
-------------------------

Currently, the only UCC build available is the one built using GCC compilers. That covers all practical cases UCC is involved into.

.. code-block:: bash

 module load ucc


Getting help
------------

See :doc:`help`

.. _`UCC`: https://github.com/openucx/ucc