def METHOD_NAME(self):
    """
    Related to #89.
    This does not test #89 but tests the fix for it.
    We want to make sure the worker threads can be used multiple times
    and with different time gap between each execution.
    """
    @vectorize('float64(float64, float64)', target='parallel')
    def fnv(a, b):
        return a + b
    sleep_time = 1   # 1 second
    while sleep_time > 0.00001:    # 10us
        time.sleep(sleep_time)
        a = b = np.arange(10**5)
        np.testing.assert_equal(a + b, fnv(a, b))
        # Reduce sleep time
        sleep_time /= 2