question: protected boolean launchAssignToClusters ( Instances insts , int [ ] clusterAssignments ) throws Exception { int numPerTask = insts . numInstances ( ) / m_executionSlots ; List < Future < Boolean > > results = new ArrayList < Future < Boolean > > ( ) ; for ( int i = 0 ; i < m_executionSlots ; i ++ ) { int start = i * numPerTask ; int end = start + numPerTask ; if ( i == m_executionSlots - 1 ) { end = insts . numInstances ( ) ; } Future < Boolean > futureKM = m_executorPool . submit ( new KMeansClusterTask ( insts , start , end , clusterAssignments ) ) ; results . add ( futureKM ) ; } boolean converged = true ; for ( Future < Boolean > f : results ) { if ( ! f . get ( ) ) { converged = false ; } } return converged ; }
target:  Launch the tasks that assign instances to clusters