void PSParallelCompact::initialize_dead_wood_limiter()
{

  {- -------------------------------------------
  (1) (変数宣言など)
      ---------------------------------------- -}

      const size_t max = 100;

  {- -------------------------------------------
  (1) (フィールドの初期化)
      ---------------------------------------- -}

      _dwl_mean = double(MIN2(ParallelOldDeadWoodLimiterMean, max)) / 100.0;
      _dwl_std_dev = double(MIN2(ParallelOldDeadWoodLimiterStdDev, max)) / 100.0;
      _dwl_first_term = 1.0 / (sqrt(2.0 * M_PI) * _dwl_std_dev);
      DEBUG_ONLY(_dwl_initialized = true;)
      _dwl_adjustment = normal_distribution(1.0);
    }