báo cáo hóa học:" Research Article Run-Time HW/SW Scheduling of Data Flow Applications on Reconfigurable Architectures"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Run-Time HW/SW Scheduling of Data Flow Applications on Reconfigurable Architectures | Hindawi Publishing Corporation EURASIP Journal on Embedded Systems Volume 2009 Article ID 976296 13 pages doi 2009 976296 Research Article Run-Time HW SW Scheduling of Data Flow Applications on Reconfigurable Architectures Fakhreddine Ghaffari Benoit Miramond and Francois Verdier ETIS Laboratory UMR 8051 ENSEA University ofCergy Pontoise CNRS 6 avenue Du Ponceau BP 44 95014 Cergy-Pontoise Cedex France Correspondence should be addressed to Fakhreddine Ghaffari Received 1 March 2009 Revised 22 July 2009 Accepted 7 October 2009 Recommended by Markus Rupp This paper presents an efficient dynamic and run-time Hardware Software scheduling approach. This scheduling heuristic consists in mapping online the different tasks of a highly dynamic application in such a way that the total execution time is minimized. We consider soft real-time data flow graph oriented applications for which the execution time is function of the input data nature. The target architecture is composed of two processors connected to a dynamically reconfigurable hardware accelerator. Our approach takes advantage of the reconfiguration property of the considered architecture to adapt the treatment to the system dynamics. We compare our heuristic with another similar approach. We present the results of our scheduling method on several image processing applications. Our experiments include simulation and synthesis results on a Virtex V-based platform. These results show a better performance against existing methods. Copyright 2009 Fakhreddine Ghaffari et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction One of the main steps of the HW SW codesign of a mixed electronic system Software and Hardware is the scheduling of the application tasks on the processing elements PEs of the platform. The

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