Highly scalable FETI methods in ESPRESO

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F15%3A86099018" target="_blank" >RIV/61989100:27740/15:86099018 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27230/15:86099018

Result on the web

<a href="http://dx.doi.org/10.4203/ccp.107.17" target="_blank" >http://dx.doi.org/10.4203/ccp.107.17</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4203/ccp.107.17" target="_blank" >10.4203/ccp.107.17</a>

Result language

angličtina

Original language name

Highly scalable FETI methods in ESPRESO

Original language description

This paper describes our new hybrid parallelization of the Finite Element Tearing and Interconnecting (FETI) method for the multi-socket and multi-core computer clusters. This is an essential step in our development of the Hybrid FETI solver were a small number of neighboring subdomains is aggregated into clusters and each cluster is processed by a single compute node. In our previous work the FETI solver was implemented using MPI parallelization into our ESPRESO solver. The proposed hybrid implementation provides better utilization of resources of modern HPC machines using advanced shared memory runtime systems such as Cilk++ runtime. Cilk++ is an alternative to OpenMP which is used by the ESPRESO for shared memory parallelization. We have compared the performance of the hybrid parallelization to MPI-only parallelization. The results show that we have reduced both solver runtime and memory utilization. This allows the solver to use a larger number of smaller sub-domains and in order to solve larger problems using a limited number of compute nodes. This feature is essential for users with smaller computer clusters.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Civil-Comp proceedings. Volume 107

ISBN

978-1-905088-62-1

ISSN

1759-3433

e-ISSN

neuvedeno

Number of pages

13

Pages from-to

"nestrankovano"

Publisher name

Civil-Comp Press

Place of publication

Kippen, Stirlingshire

Event location

Dubrovník

Event date

Mar 24, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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