On the Use of Small 2D Convolutions on GPUs

Shams A.H. Al Umairy 1 Alexander S. Van Amesfoort 1 Irwan D. Setija 2 Martijn C. Van Beurden 3 Henk J. Sips 1
1 TU Delft - Delft University of Technology
2 ASML - ASML [VELDHOVEN]
3 TU/e - Eindhoven University of Technology [Eindhoven]
Abstract : Computing many small 2D convolutions using FFTs is a basis for a large number of applications in many domains in science and engineering, among them electromagnetic diffraction modeling in physics. The GPU architecture seems to be a suitable architecture to accelerate these convolutions, but reaching high application performance requires substantial development time and non-portable optimizations. In this work, we present the techniques, performance results and considerations to accelerate small 2D convolutions using CUDA, and compare performance to a multi-threaded CPU implementation. To improve programmability and performance of applications that make heavy use of small convolutions, we argue that two improvements to software and hardware are needed: FFT libraries must be extended with a single convolution function and communication bandwidth between CPU and GPU needs to be drastically improved.
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Communication dans un congrès
Ana Lucia Varbanescu and Rob van Nieuwpoort and Anca Molnos. A4MMC 2010 - 1st Workshop on Applications for Multi and Many Core Processors, Jun 2010, Saint Malo, France. 2010
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Shams A.H. Al Umairy, Alexander S. Van Amesfoort, Irwan D. Setija, Martijn C. Van Beurden, Henk J. Sips. On the Use of Small 2D Convolutions on GPUs. Ana Lucia Varbanescu and Rob van Nieuwpoort and Anca Molnos. A4MMC 2010 - 1st Workshop on Applications for Multi and Many Core Processors, Jun 2010, Saint Malo, France. 2010. 〈inria-00493873〉

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