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Titre:
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Soft Co-Processor Based Hardware Acceleration for Image Blending |
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Auteur:
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Shapiro, Daniel; Parri, Jonathan; Desmarais, John-Marc; Kouri, Abdullah; Bergeron, Jean-Philippe; Bolic, Miodrag |
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Résumé:
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The speed of software algorithms can be greatly improved by using a co-processor to offload computations from
the main processor. Multiple co-processors can further increase the speed of a given algorithm. Based on this idea, three versions of an alpha blending algorithm were implemented on a NIOS II/f. The first implementation was entirely software based. This software based solution was then used as a baseline against which to test a single co-processor hardware solution and a multiple co-processor hardware solution. We showed that a single co-processor implementation achieved a speedup of 13.2 times, whereas the 2 co-processor solution achieved a speedup of 14.5 times with respect to this baseline. As further co-processors were added, the system became memory-bound as the algorithmic bottleneck moved from processing power to memory throughput. |
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Date:
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2011 |
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URI:
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http://www.site.uottawa.ca/~dshap092/
http://hdl.handle.net/10393/19832
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