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Equipping Sparse Solvers for Exascale - A Survey of the DFG Project ESSEX

Basermann, Achim (2015) Equipping Sparse Solvers for Exascale - A Survey of the DFG Project ESSEX. SPNS2015, International Workshop on Software for Peta-Scale Numerical Simulation, 3.-4. Dez. 2015, Tokio, Japan.

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Abstract

The ESSEX project investigates computational issues arising at exascale for large-scale sparse eigenvalue problems and develops programming concepts and numerical methods for their solution. The project pursues a coherent co-design of all software layers where a holistic performance engineering process guides code development across the classic boundaries of application, numerical method and basic kernel library. Within ESSEX the numerical methods cover both widely applicable solvers such as classic Krylov, Jacobi-Davidson or recent FEAST methods as well as domain specific iterative schemes relevant for the ESSEX quantum physics application. This presentation introduces the project structure and presents selected results which demonstrate the potential impact of ESSEX for efficient sparse solvers on highly scalable heterogeneous supercomputers. In the second project phase from 2016 to 2018, the ESSEX consortium will include partners from the Universities of Tokyo and of Tsukuba. Extensions of existing work will regard numerically reliable computing methods, scalability improvements by leveraging functional parallelism in asynchronous preconditioners, hiding and reducing communication cost, improving load balancing by advanced partitioning schemes, as well as the treatment of non-Hermitian matrix problems.

Item URL in elib:https://elib.dlr.de/100611/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Funded through DFG Priority Programme 1648 “Software for Exascale Computing”, Project ESSEX
Title:Equipping Sparse Solvers for Exascale - A Survey of the DFG Project ESSEX
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Basermann, AchimDLR-KP, SC-VSSUNSPECIFIED
Date:3 December 2015
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Exascale computing, sparse eigensolvers, scalability, fault tolerance, optimized basic building blocks, interoperable software framework, test framework, quantum physics applications, DFG project
Event Title:SPNS2015, International Workshop on Software for Peta-Scale Numerical Simulation
Event Location:Tokio, Japan
Event Type:Workshop
Event Dates:3.-4. Dez. 2015
Organizer:Universität Tokio
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: Basermann, Dr.-Ing. Achim
Deposited On:09 Dec 2015 16:21
Last Modified:31 Jul 2019 19:57

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