42 lines
1 KiB
Fortran
42 lines
1 KiB
Fortran
! { dg-do run }
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! Test tasks with detach clause. Each thread spawns off a chain of tasks,
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! that can then be executed by any available thread. Each thread uses
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! taskwait to wait for the child tasks to complete.
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program task_detach_7
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use omp_lib
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integer (kind=omp_event_handle_kind) :: detach_event1, detach_event2
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integer :: x = 0, y = 0, z = 0
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integer :: thread_count
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!$omp parallel private (detach_event1, detach_event2)
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!$omp single
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thread_count = omp_get_num_threads()
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!$omp end single
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!$omp task detach (detach_event1) untied
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!$omp atomic update
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x = x + 1
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!$omp end task
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!$omp task detach (detach_event2) untied
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!$omp atomic update
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y = y + 1
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call omp_fulfill_event (detach_event1)
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!$omp end task
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!$omp task untied
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!$omp atomic update
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z = z + 1
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call omp_fulfill_event (detach_event2)
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!$omp end task
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!$omp taskwait
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!$omp end parallel
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if (x /= thread_count) stop 1
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if (y /= thread_count) stop 2
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if (z /= thread_count) stop 3
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end program
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