.. _openmp_runtimes:

LLVM/OpenMP Runtimes
====================

There are four distinct types of LLVM/OpenMP runtimes 

LLVM/OpenMP Host Runtime (``libomp``)
-------------------------------------

An `early (2015) design document <https://openmp.llvm.org/Reference.pdf>`_ for
the LLVM/OpenMP host runtime, aka.  `libomp.so`, is available as a `pdf
<https://openmp.llvm.org/Reference.pdf>`_.


LLVM/OpenMP Target Host Runtime (``libomptarget``)
--------------------------------------------------

LLVM/OpenMP Target Host Runtime Plugins (``libomptarget.rtl.XXXX``)
-------------------------------------------------------------------

.. _device_runtime:

LLVM/OpenMP Target Device Runtime (``libomptarget-ARCH-SUBARCH.bc``)
--------------------------------------------------------------------