if (! executionCountsValid) { executionCountsValid = true; scheduleAndCreateMults(); }
     public int getMult(FlatNode node, boolean init) {         assert !(!init && !steadyExecutionCounts.containsKey(node)) : "Asking for steady mult for a filter that is not in the steady schedule "             + node;         Integer val = ((Integer) (init ? initExecutionCounts.get(node)                                   : steadyExecutionCounts.get(node)));         if (val == null)             return 0;         else             return val.intValue();     }