jobConf.setCombinerClass(AllPairsShortestPathCombiner.class);
jobConf.setNumMapTasks(numberOfMapTasks);
jobConf.setNumReduceTasks(numberOfReduceTasks);
TwisterModel mrDriver = new TwisterDriver(jobConf);
mrDriver.configureMaps();
int loopCount = 0;
TwisterMonitor monitor = null;
for (loopCount = 0;; loopCount++) {