Ana gezinime geç Aramaya geç Ana içeriğe geç

Spectral analysis of large sparse matrices for scalable direct solvers

  • Istanbul Technical University

Araştırma çıktısı: Kitap/Rapor/Konferans Bildirisinde BölümKonferans katkısıHakem

Özet

It is significant to perform structural analysis of large sparse matrices in order to obtain scalable direct solvers. In this paper, we focus on spectral analysis of large sparse matrices. We believe that the approach for exception handling of challenging matrices via Gerschgorin circles and using tuned parameters is beneficial and practical to stabilize the performance of sparse direct solvers. Nearly defective matrices are among challenging matrices for the performance of solver. Such matrices should be handled separately in order to get rid of potential performance bottleneck. Clustered eigenvalues observed via Gerschgorin circles may be used to detect nearly defective matrix. We observe that the usage of super-nodal storage parameters affects the number of fill-ins and memory usage accordingly.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığıAdvances in Applied Mathematics
EditörlerAli R. Ansari
YayınlayanSpringer New York LLC
Sayfalar153-160
Sayfa sayısı8
ISBN (Elektronik)9783319069227
DOI'lar
Yayın durumuYayınlandı - 2014
EtkinlikGulf International Conference on Applied Mathematics, GICAM 2013 - Kuwait, Kuwait
Süre: 19 Kas 201321 Kas 2013

Yayın serisi

AdıSpringer Proceedings in Mathematics and Statistics
Hacim87
ISSN (Basılı)2194-1009
ISSN (Elektronik)2194-1017

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???Gulf International Conference on Applied Mathematics, GICAM 2013
Ülke/BölgeKuwait
ŞehirKuwait
Periyot19/11/1321/11/13

Bibliyografik not

Publisher Copyright:
© Springer International Publishing Switzerland 2014.

Finansman

This work was financially supported by the PRACE project funded in part by the EUs 7th Framework Programme (FP7/2011–2013) under grant agreement no. RI-283493. Computing resources used in this work were provided by the National Center for High Performance Computing of Turkey (UHeM) (see []) under grant number 1001682012.

FinansörlerFinansör numarası
National Center for High Performance Computing of Turkey1001682012
Partnership for Advanced Computing in Europe AISBL
Seventh Framework ProgrammeRI-283493
Partnership for Advanced Computing in Europe AISBL

    Parmak izi

    Spectral analysis of large sparse matrices for scalable direct solvers' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

    Alıntı Yap