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CGMN and CARP-CG on clusters of multi-core CPUs

Thies, Jonas (2015) CGMN and CARP-CG on clusters of multi-core CPUs. Preconditioning 2015, 17-19 Jun 2015, Eindhoven, the Netherlands.

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Official URL: http://www.win.tue.nl/precon2015/


In 1979, Bj\"orck and Elfving published some remarkably robust CG-accelerated row projection methods. More recently, Gordon and Gordon proposed a parallel variant called CARP-CG (Component-Averaged Row Projections). We adopt their idea for the inter-node parallelisation but also show that a more conventional multi-coloring technique yields a simpler and more memory efficient implementation when it comes to fine-grained parallelism. The method is studied in the context of convection-dominated PDEs, the Helmholtz equations and inner eigenvalue computations. Some performance aspects are discussed and scalability up to several thousand cores is shown.

Item URL in elib:https://elib.dlr.de/100090/
Document Type:Conference or Workshop Item (Lecture)
Title:CGMN and CARP-CG on clusters of multi-core CPUs
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Thies, JonasJonas.Thies (at) dlr.deUNSPECIFIED
Date:June 2015
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:CGMN, CARP-CG, node-level performance, inner eigenvalues
Event Title:Preconditioning 2015
Event Location:Eindhoven, the Netherlands
Event Type:international Conference
Event Dates:17-19 Jun 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Vorhaben SISTEC (old)
Location: Köln-Porz
Institutes and Institutions:Institut of Simulation and Software Technology > Distributed Systems and Component Software
Deposited By: Thies, Jonas
Deposited On:09 Dec 2015 16:15
Last Modified:31 Jul 2019 19:56

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