300.Also,the MBS-OEA and several well-designed existing algorithms are compared.The results show that the MBS-OEA can find high quality solutions for various problems. Additionally,the MBS-OEA shows a good performance in solving the problems with 300 hard rectangular blocks,100 soft rectangular blocks,and 100 hybrid blocks,including both soft rectangular and hard rectilinear blocks.This illustrates that the MBS-OEA is not only suitable for solving a wide range of problems,but also competent for solving large-scale problems. Finally,a set of specific experiments is designed to identify the key component that is mainly responsible for the good performance of the MBS-OEA. Index Terms-Very large scale integration,Floorplanning,Moving block sequence, Evolutionary algorithms,Organization2 300. Also, the MBS-OEA and several well-designed existing algorithms are compared. The results show that the MBS-OEA can find high quality solutions for various problems. Additionally, the MBS-OEA shows a good performance in solving the problems with 300 hard rectangular blocks, 100 soft rectangular blocks, and 100 hybrid blocks, including both soft rectangular and hard rectilinear blocks. This illustrates that the MBS-OEA is not only suitable for solving a wide range of problems, but also competent for solving large-scale problems. Finally, a set of specific experiments is designed to identify the key component that is mainly responsible for the good performance of the MBS-OEA. Index Terms⎯Very large scale integration, Floorplanning, Moving block sequence, Evolutionary algorithms, Organization