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 dil | İngilizce |
|---|---|
| Ana bilgisayar yayını başlığı | Advances in Applied Mathematics |
| Editörler | Ali R. Ansari |
| Yayınlayan | Springer New York LLC |
| Sayfalar | 153-160 |
| Sayfa sayısı | 8 |
| ISBN (Elektronik) | 9783319069227 |
| DOI'lar | |
| Yayın durumu | Yayınlandı - 2014 |
| Etkinlik | Gulf International Conference on Applied Mathematics, GICAM 2013 - Kuwait, Kuwait Süre: 19 Kas 2013 → 21 Kas 2013 |
Yayın serisi
| Adı | Springer Proceedings in Mathematics and Statistics |
|---|---|
| Hacim | 87 |
| ISSN (Basılı) | 2194-1009 |
| ISSN (Elektronik) | 2194-1017 |
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| ???event.eventtypes.event.conference??? | Gulf International Conference on Applied Mathematics, GICAM 2013 |
|---|---|
| Ülke/Bölge | Kuwait |
| Şehir | Kuwait |
| Periyot | 19/11/13 → 21/11/13 |
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.
| Finansörler | Finansör numarası |
|---|---|
| National Center for High Performance Computing of Turkey | 1001682012 |
| Partnership for Advanced Computing in Europe AISBL | |
| Seventh Framework Programme | RI-283493 |
| Partnership for Advanced Computing in Europe AISBL |
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