how to write a twister code with more than one reduce task

[Savyan PV]

How can i write a twister code with more than one reduce task.

public void driveMapReduce(String partitionFile, int numMapTasks,
            String initFile) throws Exception {
        long beforeTime = System.currentTimeMillis();
        int numReducers = 1; // we need only one reducer for the above

only here is need to be changed?

I am new to map reduce.