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Pregled bibliografske jedinice broj: 679423

Časopis

Autori: Novaković, Vedran
Naslov: A hierarchically blocked Jacobi SVD algorithm for single and multiple graphics processing units
Izvornik: SIAM journal on scientific computing (1064-8275) 37 (2015), 1; C1-C30
Vrsta rada: članak
Ključne riječi: Jacobi (hyperbolic) singular value decomposition; parallel pivot strategies; graphics processing units
Sažetak:
We present a hierarchically blocked one-sided Jacobi algorithm for the singular value decomposition (SVD), targeting both single and multiple graphics processing units (GPUs). The blocking structure reflects the levels of the GPUs’ memory hierarchy. The algorithm may outperform MAGMA’s dgesvd, while retaining high relative accuracy. To this end, we developed a family of parallel pivot strategies on the GPU’s shared address space, but applicable also to inter- GPU communication. Unlike common hybrid approaches, our algorithm in a single-GPU setting needs a CPU for the controlling purposes only, while utilizing the GPU’s resources to the fullest extent permitted by the hardware. When required by the problem size, the algorithm, in principle, scales to an arbitrary number of GPU nodes. The scalability is demonstrated by more than twofold speedup for sufficiently large matrices on a Tesla S2050 system with four GPUs versus a single Fermi card.
Projekt / tema: 037-1193086-2771
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Matematika,Računarstvo
URL Internet adrese: http://arxiv.org/abs/1401.2720
http://epubs.siam.org/doi/abs/10.1137/140952429
http://dx.doi.org/10.1137/140952429
Broj citata:
Altmetric:
DOI: 10.1137/140952429
URL cjelovitog teksta: http://arxiv.org/abs/1401.2720
Google Scholar: A hierarchically blocked Jacobi SVD algorithm for single and multiple graphics processing units
Upisao u CROSBI: Vedran Novaković (vedran.novakovic@fsb.hr), 11. Sij. 2014. u 05:17 sati



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