Summary
The CUDA software platform gives abilities of outstanding performance for parallel computing using GPGPUs (General Purpose Graphics Processing Unit). The external memory interface is the main bottleneck of GPGPU for memory intense operations. There are a lot of reduction ways of this disadvantage for real–time applications. The profiling of the algorithm and execution parameters fitting are presented as a solution for the minimization of execution time. The fisheye to perspective transform is optimized as the example of the nonlinear image warping algorithm. The code optimization using search of the optimal kernel starting parameters is necessary. Such optimization gives better results for all cases due to limited processing area and the execution time is about 12% smaller. The unconventional method for CUDA of block–to–image assignment is emphasized.
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Mazurek, P. (2013). Optimization of Memory Accesses for CUDA Architecture and Image Warping Algorithms. In: Choraś, R. (eds) Image Processing and Communications Challenges 4. Advances in Intelligent Systems and Computing, vol 184. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32384-3_16
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DOI: https://doi.org/10.1007/978-3-642-32384-3_16
Publisher Name: Springer, Berlin, Heidelberg
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