offload/test/offloading/wtime.c

   1 // RUN: %libomptarget-compileopt-and-run-generic
   2
   3 // UNSUPPORTED: amdgcn-amd-amdhsa
   4
   5 #include <assert.h>
   6 #include <omp.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 #define N (1024 * 1024 * 256)
  11
  12 int main(int argc, char *argv[]) {
  13   int *data = (int *)malloc(N * sizeof(int));
  14   double duration = 0.0;
  15
  16 #pragma omp target map(from : data[0 : N]) map(from : duration)
  17   {
  18     double start = omp_get_wtime();
  19     for (int i = 0; i < N; ++i)
  20       data[i] = i;
  21     double end = omp_get_wtime();
  22     duration = end - start;
  23   }
  24   assert(duration > 0.0);
  25   free(data);
  26   return 0;
  27 }