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@ARTICLE{Berljafa:185482,
author = {Berljafa, Mario and Wortmann, Daniel and Di Napoli,
Edoardo},
title = {{A}n optimized and scalable eigensolver for sequences of
eigenvalue problems},
journal = {Concurrency and computation},
volume = {27},
number = {4},
issn = {1532-0626},
address = {Chichester},
publisher = {Wiley},
reportid = {FZJ-2014-06909},
pages = {905–922},
year = {2015},
abstract = {In many scientific applications, the solution of nonlinear
differential equations are obtained through the setup and
solution of a number of successive eigenproblems. These
eigenproblems can be regarded as a sequence whenever the
solution of one problem fosters the initialization of the
next. In addition, in some eigenproblem sequences, there is
a connection between the solutions of adjacent
eigenproblems. Whenever it is possible to unravel the
existence of such a connection, the eigenproblem sequence is
said to be correlated. When facing with a sequence of
correlated eigenproblems, the current strategy amounts to
solving each eigenproblem in isolation. We propose an
alternative approach that exploits such correlation through
the use of an eigensolver based on subspace iteration and
accelerated with Chebyshev polynomials (Chebyshev filtered
subspace iteration (ChFSI)). The resulting eigensolver is
optimized by minimizing the number of matrix–vector
multiplications and parallelized using the Elemental library
framework. Numerical results show that ChFSI achieves
excellent scalability and is competitive with current dense
linear algebra parallel eigensolvers.},
cin = {JSC / JARA-HPC},
ddc = {004},
cid = {I:(DE-Juel1)JSC-20090406 / $I:(DE-82)080012_20140620$},
pnm = {511 - Computational Science and Mathematical Methods
(POF3-511) / Simulation and Data Laboratory Quantum
Materials (SDLQM) (SDLQM)},
pid = {G:(DE-HGF)POF3-511 / G:(DE-Juel1)SDLQM},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000350293900010},
doi = {10.1002/cpe.3394},
url = {https://juser.fz-juelich.de/record/185482},
}