libgomp/doc/openmp-runtime-library-routines/ompgetinitialdevice.rst

   1 ..
   2   Copyright 1988-2022 Free Software Foundation, Inc.
   3   This is part of the GCC manual.
   4   For copying conditions, see the copyright.rst file.
   5
   6 .. _omp_get_initial_device:
   7
   8 omp_get_initial_device -- Return device number of initial device
   9 ****************************************************************
  10
  11 Description:
  12   This function returns a device number that represents the host device.
  13   For OpenMP 5.1, this must be equal to the value returned by the
  14   ``omp_get_num_devices`` function.
  15
  16 C/C++:
  17   .. list-table::
  18
  19      * - *Prototype*:
  20        - ``int omp_get_initial_device(void);``
  21
  22 Fortran:
  23   .. list-table::
  24
  25      * - *Interface*:
  26        - ``integer function omp_get_initial_device()``
  27
  28 See also:
  29   :ref:`omp_get_num_devices`
  30
  31 Reference:
  32   :openmp:`4.5`, Section 3.2.35.