Visualization method for analysis on collision between sea ice and offshore platform
WANG Yuxin;ZHANG Chi;DI Shaocheng;JI Shunying;HUO Yunli;GUO He;School of Computer Science and Technology,Dalian University of Technology;School of Software Technology,Dalian University of Technology;State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology;
The visualization method about massive particles simulation running on CPU-GPU heterogeneous high-performance computing platform is studied,which is applied in an analysis system for the collision between sea ice and offshore platform based on discrete element method. By Open GL,the different sizes of level ice,floating ice,ice ridge and ice of irregular forms can be presented; the different shapes of offshore platform structure and force mesh can be drawn; the movement path and speed of sea ice particles can be expressed; the motion of ocean waves can be simulated; the animation of collision process can be demonstrated,etc. By defining reasonable interaction patterns and interface,the discrete element calculation accelerated by GPU and the post-processing display are merged in a certain extent. Based on multi-process pipe communication,multi-thread parallel output,and so on,the realtime display of particle simulation results is implemented while GPU is calculating. By the method,the researchers can realize program execution status at any time and the subsequent transmission,processingand storage of data can be significantly reduced.