A GPU Memory System Comparison for an Elliptic Test Problem

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dc.contributor.authorWang, Yu
dc.contributor.authorGobbert, Matthias K.
dc.contributor.authorOlano, Marc
dc.contributor.authorGriffin, Wesley
dc.date.accessioned2018-10-16T13:35:23Z
dc.date.available2018-10-16T13:35:23Z
dc.description.abstractThis paper presents GPU-based solutions to the Poisson equation with homogeneous Dirichlet boundary conditions in two spatial dimensions. This problem has well-understood behavior, but similar computation to many more complex real-world problems. We analyze the GPU performance using three types of memory access in the CUDA memory model (direct access to global memory, texture access, and shared memory). Based on data locality, different CUDA algorithms are designed to accommodate the different device memory performance behaviors. We present a performance study on the speedup of our GPU-based solutions on an NVIDIA Tesla C2070 over serial code. By relating the data access pattern and its spatial locality, our results show that an algorithm using global memory with coalesced reads outperforms the other memory systems and allows effective solvers using single precision floating points.en_US
dc.description.urihttps://userpages.umbc.edu/~gobbert/papers/WangEtAlHPCF2012.pdfen_US
dc.format.extent8 pagesen_US
dc.genreTechnical Reporten_US
dc.identifierdoi:10.13016/M2028PH5S
dc.identifier.urihttp://hdl.handle.net/11603/11571
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Computer Science and Electrical Engineering Department Collection
dc.relation.ispartofUMBC Mathematics and Statistics Department
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofseriesHPCF Technical Report;HPCF-2012-1
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.subjectCUDA memory modelen_US
dc.subjectPoisson equationen_US
dc.subjectGPU-based solutionsen_US
dc.subjectUMBC High Performance Computing Facility (HPCF)en_US
dc.titleA GPU Memory System Comparison for an Elliptic Test Problemen_US
dc.typeTexten_US

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