.. _lapack-functionality:

LAPACK Functionality
====================


.. note::
   All of the DPC++ LAPACK computational routines have a corresponding
   \*_scratchpad_size function for calculating the required amount of
   scratchpad space.



.. list-table::
   :header-rows: 1

   * -  Functionality
     -  CPU
     -  Intel GPU
   * -  ``getrf``
     -  Yes
     -  Yes
   * -  ``getrs``
     -  Yes
     -  Yes
   * -  ``getri``
     -  Yes
     -  Yes





.. list-table::
   :header-rows: 1

   * -  Functionality
     -  CPU
     -  Intel GPU
   * -  ``potrf``
     -  Yes
     -  Yes
   * -  ``potrs``
     -  Yes
     -  Yes
   * -  ``potri``
     -  Yes
     -  Yes




.. list-table::
   :header-rows: 1

   * -  Functionality
     -  CPU
     -  Intel GPU
   * -  ``geqrf``
     -  Yes
     -  Yes
   * -  ``{or,un}gqr``
     -  Yes
     -  Yes
   * -  ``{or,un}mqr``
     -  Yes
     -  Yes
   * -  ``gerqf``
     -  Yes
     -  No
   * -  ``{or,un}mrq``
     -  Yes
     -  No




.. list-table::
   :header-rows: 1

   * -  Functionality
     -  CPU
     -  Intel GPU
   * -  ``trtrs``
     -  Yes
     -  Yes
   * -  ``{sy,he}trf``
     -  Yes
     -  No




.. list-table::
   :header-rows: 1

   * -  Functionality
     -  CPU
     -  Intel GPU
   * -  ``{sy,he}ev``
     -  Yes
     -  Yes
   * -  ``{sy,he}evd``
     -  Yes
     -  Yes
   * -  ``{sy,he}evx``
     -  Yes
     -  Yes
   * -  ``{sy,he}trd``
     -  Yes
     -  Yes
   * -  ``{or,un}gtr``
     -  Yes
     -  No
   * -  ``{or,un}mtr``
     -  Yes
     -  No
   * -  ``steqr``
     -  Yes
     -  Yes




.. list-table::
   :header-rows: 1

   * -  Functionality
     -  CPU
     -  Intel GPU
   * -  ``{sy,he}gvd``
     -  Yes
     -  Yes
   * -  ``{sy,he}gvx``
     -  Yes
     -  Yes





.. list-table::
   :header-rows: 1

   * -  Functionality
     -  CPU
     -  Intel GPU
   * -  ``gesvd``
     -  Yes
     -  Yes
   * -  ``gebrd``
     -  Yes
     -  Yes
   * -  ``{or,un}gbr``
     -  Yes
     -  No



.. list-table::
   :header-rows: 1

   * -  Functionality
     -  CPU
     -  Intel GPU
   * -  ``getrf_batch``
     -  Yes
     -  Yes
   * -  ``getrs_batch``
     -  Yes
     -  Yes
   * -  ``getri_batch``
     -  Yes
     -  Yes
   * -  ``potrf_batch``
     -  Yes
     -  Yes
   * -  ``potrs_batch``
     -  Yes
     -  Yes
   * -  ``geqrf_batch``
     -  Yes
     -  Yes
   * -  ``{or,un}gqr_batch``
     -  Yes
     -  Yes




Other LAPACK Routines
*********************


.. list-table::
   :header-rows: 1

   * -  CPU
     -  Intel GPU
   * -  No
     -  No