main
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Last change
on this file was ea777aa, checked in by Alex Wilton <awilton@…>, 3 years ago |
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Moved examples, include, build_default.properties, common.xml, and README out from dev.civl.com into the root of the repo.
git-svn-id: svn://vsl.cis.udel.edu/civl/trunk@5704 fb995dde-84ed-4084-dfe6-e5aef3e2452c
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File size:
1.1 KB
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| 1 | !!!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~!!!
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| 2 | !!! Copyright (c) 2017-20, Lawrence Livermore National Security, LLC
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| 3 | !!! and DataRaceBench project contributors. See the DataRaceBench/COPYRIGHT file for details.
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| 4 | !!!
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| 5 | !!! SPDX-License-Identifier: (BSD-3-Clause)
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| 6 | !!!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~!!!
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| 7 |
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| 8 | !Using lastprivate() to resolve an output dependence.
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| 9 | !
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| 10 | !Semantics of lastprivate (x):
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| 11 | !causes the corresponding original list item to be updated after the end of the region.
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| 12 | !The compiler/runtime copies the local value back to the shared one within the last iteration.
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| 13 |
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| 14 |
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| 15 | program DRB059_lastprivate_orig_no
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| 16 | use omp_lib
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| 17 | implicit none
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| 18 | !$omp parallel
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| 19 | call foo()
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| 20 | !$omp end parallel
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| 21 | contains
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| 22 | subroutine foo()
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| 23 | integer :: i, x
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| 24 | !$omp parallel do private(i) lastprivate(x)
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| 25 | do i = 1, 100
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| 26 | x = i
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| 27 | end do
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| 28 | !$omp end parallel do
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| 29 | print 100, x
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| 30 | 100 format ("x =",i3)
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| 31 | end subroutine foo
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| 32 | end program
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