Scan-convension is the essential part of the graphic pipeline. It takes full advantage of data parallel processing. High performance computing mainly relies on large throughput

but the conventional state management method in the graphics pipeline reduces the throughput because of processing unit stalling. An efficient state management method is proposed in this paper. In order to maintain command ordering

the proposed method divides the commands into two classes: compute command and control command. The method reduces the complexity of maintaining ordering and state management compared with conventional method

and the state-mask generated by state processing unit decreases the count of the broadcast communication and reduces the bandwidth needed for state management. Experimental results show that for applications such as computer games

in which the backend states change frequently

the rate of raster engine usage is improved by 5%~9%.