derek.holloway
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33 lines
1.3 KiB
Plaintext
33 lines
1.3 KiB
Plaintext
! Test that OpenMP privatization of CUDA Fortran allocatable device arrays:
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! 1. Allocates the descriptor in managed memory (cuf.alloc) so CUF kernels
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! can access it from the GPU.
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! 2. Sets allocator_idx = 2 on the null descriptor so that allocate() uses
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! cudaMalloc.
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! 3. Frees the managed descriptor in the dealloc region (cuf.free).
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! RUN: bbc -emit-hlfir -fcuda -fopenmp %s -o - | FileCheck %s
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subroutine omp_private_device_allocatable()
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implicit none
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real(8), device, allocatable :: adev(:)
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!$omp parallel private(adev)
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allocate(adev(10))
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adev(1) = 1.0d0
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deallocate(adev)
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!$omp end parallel
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end subroutine
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! CHECK-LABEL: omp.private {type = private}
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! CHECK-SAME: @{{.*}} : !fir.box<!fir.heap<!fir.array<?xf64>>> init {
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! Descriptor must be allocated in managed memory for GPU accessibility.
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! CHECK: cuf.alloc !fir.box<!fir.heap<!fir.array<?xf64>>> {data_attr = #cuf.cuda<device>}
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! Null descriptor must carry allocator_idx = 2.
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! CHECK: fir.embox %{{.*}}(%{{.*}}) {allocator_idx = 2 : i32}
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! CHECK: fir.store
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! CHECK: } dealloc {
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! Managed descriptor must be freed.
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! CHECK: cuf.free %{{.*}} : !fir.ref<!fir.box<!fir.heap<!fir.array<?xf64>>>> {data_attr = #cuf.cuda<device>}
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! CHECK: }
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! CHECK-LABEL: func.func
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