constrainLinearOrder(lp);
    private void setupConstraints(LinearProgram lp) {	constrainZeroOneVars(lp);	constrainOneTilePerNode(lp);	constrainWMax(lp);	//constrainConnectedPartitions(lp);	constrainHierarchicalPartitions(lp);	constrainSeparateJoiners(lp);	// constriants for the sake of speeding up the solution	// process	constrainLinearOrder(lp);	//constrainSymmetry(lp);    }