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Coupling of a reconfigurable architecture and a multithreaded processor core with integrated real-time scheduling

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4 Author(s)
Uhrig, S. ; Inst. of Comput. Sci., Augsburg Univ. ; Maier, S. ; Kuzmanov, G. ; Ungerer, T.

This paper defines a real-time capable interface between the simultaneous multithreaded CarCore processor and a MOLEN-based reconfigurable unit. CarCore is an IP core that enables simultaneous execution of one hard-real-time thread and further non-real-time threads. The coupling described in this paper extends CarCore by a reconfigurable hardware such that both can execute different threads simultaneously, while the realtime behavior of the hard-real-time thread is not harmed. The challenge is the design of a common memory interface for both, the CarCore and the reconfigurable hardware, such that memory operations fulfil hard-real-time constraints. Experimental results with an MJPEG benchmark show an overall application speedup of 2.15 which approaches the theoretically attainable maximum speedup of 2.18

Published in:

Parallel and Distributed Processing Symposium, 2006. IPDPS 2006. 20th International

Date of Conference:

25-29 April 2006