Browsing by Author "Huang, Pao-Jui"

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Communication-driven task binding for multiprocessor with latency insensitive Network-on-Chip
(2005)
Lin, Liang-Yu
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Wang, Cheng-Yeh
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Huang, Pao-Jui
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Chou, Chih-Chieh
;
Jou, Jing-Yang
Network-on-Chip is a new design paradigm for designing core based System-on-Chip. It features high degree of reusability and scalability. In this paper, we propose a switch which employs the latency insensitive concepts and applies the round-robin scheduling techniques to achieve high communication resource utilization. Based on the assumptions of the 2D-mesh network topology constructed by the switch, this work not only models the communication and the contention effect of the network, but develops a communication-driven task binding algorithm that employs the divide and conquer strategy to map applications onto the multiprocessor system-on-chip. The algorithm attempts to derive a binding of tasks such that the overall system throughput is maximized. To compare with the task binding without consideration of communication and contention effect, the experimental results demonstrate that the overall improvement of the system throughput is 20% for 844 test cases.
MULTITASKING PROCESSOR AND TASK SWITCHING METHOD THEREOF
(2010-02-25)
Lin, Tay-Jyi
;
Huang, Pao-Jui
;
Liu, Chih-Wei
;
Chen, Shin-Kai
;
Wang, Bing-Shiun
A multitasking processor and a task switching method thereof are provided. The task switching method includes following steps. A first task is executed by the multitasking processor, wherein the first task contains a plurality of switching-point instructions. An interrupt event occurs. Accordingly, the multitasking processor temporarily stops executing the first task and starts to execute a second task. The multitasking processor executes a handling process of the interrupt event and sets a switching flag. After finishing the handling process of the interrupt event, the multitasking processor does not perform task switching but continues to execute the first task, and the multitasking processor only performs task switching to execute the second task when it reaches a switching-point instruction in the first task.