!7

static double coresToUse = .5;
static new BoolVar on;
static volatile long result;
static NotTooOften nto = nto(1.0);

p-exp { // exp for "experiment" automatically reloads on updates
  new Schedule schedule;
  schedule.add(0, r { set on; });
  schedule.add(coresToUse, r { unset on; });
  schedule.jumpFromTo(1, 0);
  schedule.speedUp(10);
  thread {
    long i = 0;
    while (ping) true {
      if (on!)
        ++i;
      else {
        result = i;
        on.waitUntilTrue();
        if (nto!) print("I have counted until " + n2);
      }
    }
  }
  schedule.run();
}