60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
// RUN: %libomptarget-compile-run-and-check-generic
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// RUN: %libomptarget-compileopt-run-and-check-generic
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// TODO: This requires malloc support for the threads states.
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// FIXME: Flaky on all GPU targets.
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// UNSUPPORTED: amdgcn-amd-amdhsa
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// UNSUPPORTED: nvptx64-nvidia-cuda
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// UNSUPPORTED: nvptx64-nvidia-cuda-LTO
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#include <omp.h>
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#include <stdio.h>
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#define N 10
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int isCPU() { return 1; }
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#pragma omp begin declare variant match(device = {kind(gpu)})
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int isCPU() { return 0; }
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#pragma omp end declare variant
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int main(void) {
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long int aa = 0;
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int res = 0;
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int ng = 12;
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int cmom = 14;
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int nxyz;
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#pragma omp target map(from : nxyz, ng, cmom)
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{
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nxyz = isCPU() ? 2 : 5000;
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ng = isCPU() ? 2 : 12;
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cmom = isCPU() ? 2 : 14;
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}
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#pragma omp target teams distribute num_teams(nxyz) \
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thread_limit(ng *(cmom - 1)) map(tofrom : aa)
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for (int gid = 0; gid < nxyz; gid++) {
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#pragma omp parallel for collapse(2)
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for (unsigned int g = 0; g < ng; g++) {
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for (unsigned int l = 0; l < cmom - 1; l++) {
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int a = 0;
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#pragma omp parallel for reduction(+ : a)
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for (int i = 0; i < N; i++) {
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a += i;
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}
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#pragma omp atomic
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aa += a;
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}
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}
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}
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long exp = (long)ng * (cmom - 1) * nxyz * (N * (N - 1) / 2);
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printf("The result is = %ld exp:%ld!\n", aa, exp);
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if (aa != exp) {
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printf("Failed %ld\n", aa);
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return 1;
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}
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// CHECK: Success
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printf("Success\n");
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return 0;
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}
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