Strong and Weak Scalability Studies for the 3-D Poisson Equation on the Taki 2018 Cluster

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dc.contributor.authorBarajas, Carlos
dc.contributor.authorGobbert, Matthias K.
dc.date.accessioned2020-07-28T18:49:57Z
dc.date.available2020-07-28T18:49:57Z
dc.description.abstractThe new 2018 nodes in the cluster taki in the UMBC High Performance Computing Facility contain two 18-core Intel Skylake CPUs and 384 GB of memory per node, connected by an EDR (Enhanced Data Rate) InfiniBand interconnect. Parallel performance studies for the memory-bound test problem of the Poisson equation in three spatial dimensions yield several conclusions for the operation of the CPU cluster in taki. Strong scalability studies demonstrate excellent performance when using multiple nodes due to the low latency of the high-performance interconnect and good speedup when using all cores of the multi-core CPUs. Weak scalability studies confirm that best throughput is achieved by using all cores on a shared-memory node. Both types of performance studies highlight that parallel code is needed to take full advantage of the large number of computational cores on the high-memory 2018 nodes.en_US
dc.description.sponsorshipThe hardware used in the computational studies is part of the UMBC High Performance Computing Facility (HPCF). The facility is supported by the U.S. National Science Foundation through the MRI program (grant nos. CNS–0821258, CNS–1228778, and OAC–1726023) and the SCREMS program (grant no. DMS–0821311), with additional substantial support from the University of Maryland, Baltimore County (UMBC). See hpcf.umbc.edu for more information on HPCF and the projects using its resources. Co-author Carlos Barajas was supported by UMBC as HPCF RA.en_US
dc.description.urihttp://hpcf-files.umbc.edu/research/papers/PoissonHPCF20192.pdfen_US
dc.format.extent11 pagesen_US
dc.genretechnical reportsen_US
dc.identifierdoi:10.13016/m2wj5q-q4oy
dc.identifier.citationCarlos Barajas and Matthias K. Gobbert, Strong and Weak Scalability Studies for the 3-D Poisson Equation on the Taki 2018 Cluster, http://hpcf-files.umbc.edu/research/papers/PoissonHPCF20192.pdfen_US
dc.identifier.urihttp://hdl.handle.net/11603/19261
dc.language.isoen_USen_US
dc.publisherUMBCen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Mathematics Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Student Collection
dc.relation.ispartofseriesHPCF–2019–2;
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.subjectUMBC High Performance Computing Facility (HPCF)
dc.titleStrong and Weak Scalability Studies for the 3-D Poisson Equation on the Taki 2018 Clusteren_US
dc.typeTexten_US

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