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41 lines
1003 B
Fortran
41 lines
1003 B
Fortran
! @@name: target_task_reduction.1.f90
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! @@type: F-free
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! @@compilable: yes
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! @@linkable: no
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! @@expect: success
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! @@version: omp_5.0
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program target_task_reduction_ex1
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interface
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subroutine device_compute(res)
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!$omp declare target to(device_compute)
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integer :: res
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end subroutine device_compute
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subroutine host_compute(res)
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integer :: res
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end subroutine host_compute
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end interface
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integer :: sum
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sum = 0
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!$omp parallel master
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!$omp taskgroup task_reduction(+:sum)
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!$omp target in_reduction(+:sum) nowait
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call device_compute(sum)
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!$omp end target
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!$omp task in_reduction(+:sum)
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call host_compute(sum)
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!$omp end task
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!$omp end taskgroup
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!$omp end parallel master
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print *, "sum = ", sum
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!!OUTPUT: sum = 2
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end program
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subroutine device_compute(sum)
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integer :: sum
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sum = 1
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end subroutine
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subroutine host_compute(sum)
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integer :: sum
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sum = 1
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end subroutine
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