Browsing by Author "Lee, Meng-Tho"

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Run-time reconfiguration scheduling of 3D-rendering on a reconfigurable system
(2005)
Chiang, Kuen-Cheng
;
Lee, Meng-Tho
;
Shann, Jean Jyh-Jiun
;
Chung, Chung-Ping
;
資訊工程學系
With the dramatically increasing demands for multimedia processing capabilities in portable electronic devices, the architectural supports for various multimedia computations in one platform are crucial to the success of a product. Although application-specific accelerators have performance advantages, their inflexibilities seriously impede the applicability and shorten product lifetime. On the other hand, a general-purpose processor has benefits to wide applicability but can not meet the real-time criteria in many cases. Therefore, we develop a platform consisting of a general-purpose CPU, an array of processing elements, and a shared memory to transfer data between them. In addition, we propose two scheduling methods, First-Come-First-Serve and Priority, to process the 3D models with a better performance. Experimental results indicate that the priority scheduling significantly improves the 3D-rendering in both computation speed and silicon area, compared with FCFS scheduling. Given the same speed requirements on both FCFS and priority scheduling methods, the priority scheduling requires only 75% of the silicon area. On the other hand, it yields 30% to 80% speedup with the same area. Moreover, with priority scheduling, its performance advantage can be further increased by skills such as partial reconfiguration and multi-context configuration, to reduce its reconfiguration overhead.