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:
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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 | !The safelen(2) clause safelen(2)@23:16 guarantees that the vector code is safe for vectors up to 2 (inclusive).
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| 9 | !In the loop, m can be 2 or more for the correct execution. If the value of m is less than 2,
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| 10 | !the behavior is undefined. No Data Race in b[i]@25:9 assignment.
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| 11 |
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| 12 | program DRB137_simdsafelen_orig_no
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| 13 | use omp_lib
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| 14 | implicit none
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| 15 |
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| 16 | integer :: i, m, n
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| 17 | real :: b(4)
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| 18 |
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| 19 | m = 2
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| 20 | n = 4
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| 21 |
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| 22 | !$omp simd safelen(2)
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| 23 | do i = m+1, n
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| 24 | b(i) = b(i-m) - 1.0
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| 25 | end do
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| 26 |
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| 27 | print*, b(3)
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| 28 | end program
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