[thirdparty/gcc.git] / libgomp / doc / the-libgomp-abi / implementing-reduction-clause.rst

..
  Copyright 1988-2022 Free Software Foundation, Inc.
  This is part of the GCC manual.
  For copying conditions, see the copyright.rst file.

.. _implementing-reduction-clause:

Implementing REDUCTION clause
*****************************

The private struct mentioned in the previous section should have
a pointer to an array of the type of the variable, indexed by the
thread's :samp:`{team_id}`.  The thread stores its final value into the
array, and after the barrier, the primary thread iterates over the
array to collect the values.
Commit	Line	Data
c63539ff ML	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	.. _implementing-reduction-clause:
	7
	8	Implementing REDUCTION clause
	9	*****************************
	10
	11	The private struct mentioned in the previous section should have
	12	a pointer to an array of the type of the variable, indexed by the
	13	thread's :samp:`{team_id}`. The thread stores its final value into the
	14	array, and after the barrier, the primary thread iterates over the
3ed1b4ce	15	array to collect the values.