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| 1 | +program main |
| 2 | + implicit none |
| 3 | + integer, parameter :: nteams = 2, nthreads = 3, n = nteams * nthreads |
| 4 | + integer :: i, idx(n), teams(n), threads(n) |
| 5 | + |
| 6 | + call init("teams + parallel") |
| 7 | + !$omp teams num_teams(nteams) if(.true.) |
| 8 | + !$omp distribute parallel do num_threads(nthreads) if(.true.) |
| 9 | + do i=1,n |
| 10 | + call kernel(i) |
| 11 | + end do |
| 12 | + !$omp end teams |
| 13 | + |
| 14 | + if (.not. verify_idx()) then |
| 15 | + print *, "idx:", idx |
| 16 | + call exit(1) |
| 17 | + endif |
| 18 | + |
| 19 | + if (.not. verify_teams_parallel()) then |
| 20 | + print *, "teams:", teams |
| 21 | + print *, "threads:", threads |
| 22 | + call exit(1) |
| 23 | + endif |
| 24 | + print *, "succeeded" |
| 25 | + |
| 26 | + call init("teams") |
| 27 | + !$omp teams num_teams(nteams) if(.true.) |
| 28 | + !$omp distribute parallel do num_threads(nthreads) if(.false.) |
| 29 | + do i=1,n |
| 30 | + call kernel(i) |
| 31 | + end do |
| 32 | + !$omp end teams |
| 33 | + |
| 34 | + if (.not. verify_idx()) then |
| 35 | + print *, "idx:", idx |
| 36 | + call exit(1) |
| 37 | + endif |
| 38 | + |
| 39 | + if (.not. verify_teams()) then |
| 40 | + print *, "teams:", teams |
| 41 | + print *, "threads:", threads |
| 42 | + call exit(1) |
| 43 | + endif |
| 44 | + print *, "succeeded" |
| 45 | + |
| 46 | + call init("parallel") |
| 47 | + !$omp teams num_teams(nteams) if(.false.) |
| 48 | + !$omp distribute parallel do num_threads(nthreads) if(.true.) |
| 49 | + do i=1,n |
| 50 | + call kernel(i) |
| 51 | + end do |
| 52 | + !$omp end teams |
| 53 | + |
| 54 | + if (.not. verify_idx()) then |
| 55 | + print *, "idx:", idx |
| 56 | + call exit(1) |
| 57 | + endif |
| 58 | + |
| 59 | + if (.not. verify_parallel()) then |
| 60 | + print *, "teams:", teams |
| 61 | + print *, "threads:", threads |
| 62 | + call exit(1) |
| 63 | + endif |
| 64 | + print *, "succeeded" |
| 65 | + |
| 66 | +contains |
| 67 | + subroutine init(name) |
| 68 | + character(*), intent(in) :: name |
| 69 | + print *, name |
| 70 | + do i=1,n |
| 71 | + idx(i) = 999 |
| 72 | + teams(i) = 999 |
| 73 | + threads(i) = 999 |
| 74 | + end do |
| 75 | + end subroutine |
| 76 | + |
| 77 | + subroutine kernel(i) |
| 78 | + use omp_lib |
| 79 | + integer, intent(in) :: i |
| 80 | + |
| 81 | + idx(i) = i |
| 82 | + teams(i) = omp_get_team_num() |
| 83 | + threads(i) = omp_get_thread_num() |
| 84 | + end subroutine |
| 85 | + |
| 86 | + function verify_idx() |
| 87 | + logical :: verify_idx |
| 88 | + verify_idx = .true. |
| 89 | + do i=1,n |
| 90 | + if (idx(i) .ne. i) then |
| 91 | + print *, "index(", i, "):", idx(i), "not equal to", i |
| 92 | + verify_idx = .false. |
| 93 | + return |
| 94 | + endif |
| 95 | + end do |
| 96 | + end function |
| 97 | + |
| 98 | + function verify_teams_parallel() |
| 99 | + logical :: verify_teams_parallel |
| 100 | + integer :: team, thread |
| 101 | + verify_teams_parallel = .true. |
| 102 | + i = 1 |
| 103 | + do team=1,nteams |
| 104 | + do thread=1,nthreads |
| 105 | + if (teams(i) .ne. team - 1) then |
| 106 | + print *, "teams(", i, "):", teams(i), "not equal to", team - 1 |
| 107 | + verify_teams_parallel = .false. |
| 108 | + return |
| 109 | + endif |
| 110 | + if (threads(i) .ne. thread - 1) then |
| 111 | + print *, "threads(", i, "):", threads(i), "not equal to", thread - 1 |
| 112 | + verify_teams_parallel = .false. |
| 113 | + return |
| 114 | + endif |
| 115 | + i = i + 1 |
| 116 | + end do |
| 117 | + end do |
| 118 | + end function |
| 119 | + |
| 120 | + function verify_teams() |
| 121 | + logical :: verify_teams |
| 122 | + verify_teams = .true. |
| 123 | + do i=1,n |
| 124 | + if (teams(i) .ne. 0) then |
| 125 | + print *, "teams(", i, "):", teams(i), "not equal to 0" |
| 126 | + verify_teams = .false. |
| 127 | + return |
| 128 | + endif |
| 129 | + if (threads(i) .ne. 0) then |
| 130 | + print *, "threads(", i, "):", threads(i), "not equal to 0" |
| 131 | + verify_teams = .false. |
| 132 | + return |
| 133 | + endif |
| 134 | + end do |
| 135 | + end function |
| 136 | + |
| 137 | + function verify_parallel() |
| 138 | + logical :: verify_parallel |
| 139 | + integer :: team, thread |
| 140 | + verify_parallel = .true. |
| 141 | + i = 1 |
| 142 | + do team=1,nteams |
| 143 | + do thread=1,nthreads |
| 144 | + if (teams(i) .ne. 0) then |
| 145 | + print *, "teams(", i, "):", teams(i), "not equal to 0" |
| 146 | + verify_parallel = .false. |
| 147 | + return |
| 148 | + endif |
| 149 | + if (threads(i) .ne. (i-1) / nteams) then |
| 150 | + print *, "threads(", i, "):", threads(i), "not equal to", (i-1) / nteams |
| 151 | + verify_parallel = .false. |
| 152 | + return |
| 153 | + endif |
| 154 | + i = i + 1 |
| 155 | + end do |
| 156 | + end do |
| 157 | + end function |
| 158 | +end program |
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