nodeToNextUnitArrayMap = new HashMap<GrammarNode, int[]>();
nodeToUnitSetMap = new HashMap<GrammarNode, Set<Unit>>();
Timer timer = TimerPool.getTimer(this, "compileGrammar");
timer.start();
compileGrammar();
timer.stop();
logger.info("Done allocating DFLAT");
}
/** Allocates the acoustic model.