available: 2 nodes (0-1)
node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
node 1 cpus: 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79

int numa_node(void *ptr) {
  int status;
  int ret_code;
  if((ret_code = move_pages(0, 1, &ptr, NULL, &status, 0)) == -1) {
    perror("move_pages");
    return -1;
  }
  return status;
}

int main(int argc, char* argv[]) {
  int pgsize = getpagesize();
  printf("NUMA test(pgsize=%d)n",pgsize);
  #pragma omp parallel firstprivate(pgsize)
  {

    if(omp_get_thread_num() == 20) {
      char *m = aligned_alloc(pgsize, pgsize);
      m[0] = 'a';
      if(mlock(m, 10) == -1) {
        perror("mlock");
      }
      else {
        int node = numa_node(m);
        printf("thread %d: node %dn",20,node);
      }
    }

  }

}

NUMA test(pgsize=4096)
thread 20: node 0