1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
! { dg-do compile }
! { dg-options "-ffixed-form" }
MODULE DATA
USE OMP_LIB, ONLY: OMP_NEST_LOCK_KIND
TYPE LOCKED_PAIR
INTEGER A
INTEGER B
INTEGER (OMP_NEST_LOCK_KIND) LCK
END TYPE
END MODULE DATA
SUBROUTINE INCR_A(P, A)
! called only from INCR_PAIR, no need to lock
USE DATA
TYPE(LOCKED_PAIR) :: P
INTEGER A
P%A = P%A + A
END SUBROUTINE INCR_A
SUBROUTINE INCR_B(P, B)
! called from both INCR_PAIR and elsewhere,
! so we need a nestable lock
USE OMP_LIB ! or INCLUDE "omp_lib.h"
USE DATA
TYPE(LOCKED_PAIR) :: P
INTEGER B
CALL OMP_SET_NEST_LOCK(P%LCK)
P%B = P%B + B
CALL OMP_UNSET_NEST_LOCK(P%LCK)
END SUBROUTINE INCR_B
SUBROUTINE INCR_PAIR(P, A, B)
USE OMP_LIB ! or INCLUDE "omp_lib.h"
USE DATA
TYPE(LOCKED_PAIR) :: P
INTEGER A
INTEGER B
CALL OMP_SET_NEST_LOCK(P%LCK)
CALL INCR_A(P, A)
CALL INCR_B(P, B)
CALL OMP_UNSET_NEST_LOCK(P%LCK)
END SUBROUTINE INCR_PAIR
SUBROUTINE A40(P)
USE OMP_LIB ! or INCLUDE "omp_lib.h"
USE DATA
TYPE(LOCKED_PAIR) :: P
INTEGER WORK1, WORK2, WORK3
EXTERNAL WORK1, WORK2, WORK3
!$OMP PARALLEL SECTIONS
!$OMP SECTION
CALL INCR_PAIR(P, WORK1(), WORK2())
!$OMP SECTION
CALL INCR_B(P, WORK3())
!$OMP END PARALLEL SECTIONS
END SUBROUTINE A40
! { dg-final { cleanup-modules "data" } }
|