RT info:eu-repo/semantics/conferenceObject T1 Measuring the Impact of Configuration Parameters in CUDA Through Benchmarking A1 Torres de la Sierra, Yuri A1 González Escribano, Arturo A1 Llanos Ferraris, Diego Rafael K1 Informática K1 Micro-benchmarks K1 CUDA K1 GPGPU K1 Performance measurement K1 1203 Ciencia de Los Ordenadores K1 3304 AB The threadblock size and shape choice is one of the most important user decisions when a parallel problem is coded to run in GPU architectures. In fact, threadblock configuration has a significant impact on the global performance of the program. Unfortunately , the programmer has not enough information about the subtle interactions between this choice of parameters and the underlying hardware. This paper presents uBench, a suite of micro-benchmarks, in order to explore the impact on performance derived from the combination of (1) the threadblock size and shape choice criteria, and (2) the GPU hardware resources and configurations. Each micro-benchmark has been designed as simple as possible to focus on a single effect derived from the hardware or threadblock parameter choice. As an example of the capabilities of this benchmark suite, this paper shows an experimental evaluation of the Fermi architecture, in terms of configuration parameters. This study confirms some previous experimental results and gives new insights on the influence of these parameters on the performance delivered by this GPU architecture. PB Universidad de Salamanca SN 978-84-615-5392-1 YR 2012 FD 2012 LK https://uvadoc.uva.es/handle/10324/71191 UL https://uvadoc.uva.es/handle/10324/71191 LA spa NO Conference: 12th International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2012At: La Manga del Mar Menor, España NO Producción Científica DS UVaDOC RD 22-nov-2024