Comparison between GPU and parallel CPU optimizations in viewshed analysis
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Examensarbete för masterexamen
Master Thesis
Master Thesis
Model builders
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Abstract
Parallel CPU implementations of a viewshed algorithm using both multithreading and SIMD vectorization and GPU implementations were implemented and compared in this study. The results show that parallelism is essential for achieving good performance on a CPU, and that data transfer can be partly overlapped by computations to hide some of the overheads in GPU implementations. The GPU implementation was the fastest with a performance approximately 3 times faster than the parallel CPU implementation for the hardware the tests were performed on.
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Informations- och kommunikationsteknik, Data- och informationsvetenskap, Information & Communication Technology, Computer and Information Science