Accelerating nuclear configuration interaction calculations through a preconditioned block iterative eigensolver
Abstract
In this paper, we describe a number of recently developed techniques for improving the performance of large-scale nuclear configuration interaction calculations on high performance parallel computers. We show the benefit of using a preconditioned block iterative method to replace the Lanczos algorithm that has traditionally been used to perform this type of computation. The rapid convergence of the block iterative method is achieved by a proper choice of starting guesses of the eigenvectors and the construction of an effective preconditioner. These acceleration techniques take advantage of special structure of the nuclear configuration interaction problem which we discuss in detail. The use of a block method also allows us to improve the concurrency of the computation, and take advantage of the memory hierarchy of modern microprocessors to increase the arithmetic intensity of the computation relative to data movement. Finally, we also discuss the implementation details that are critical to achieving high performance on massively parallel multi-core supercomputers, and demonstrate that the new block iterative solver is two to three times faster than the Lanczos based algorithm for problems of moderate sizes on a Cray XC30 system.
- Authors:
-
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Computational Research Division
- Michigan State Univ., East Lansing, MI (United States). Dept. of Computer Science and Engineering
- Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); USDOE Office of Science (SC), Nuclear Physics (NP); Michigan State Univ. (United States)
- OSTI Identifier:
- 1439235
- Alternate Identifier(s):
- OSTI ID: 1550011
- Grant/Contract Number:
- AC02-05CH11231; SC0008485; FG02-87ER40371; GE100082; DESC0008485
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Computer Physics Communications
- Additional Journal Information:
- Journal Volume: 222; Journal ID: ISSN 0010-4655
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 97 MATHEMATICS AND COMPUTING; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; nuclear configuration interaction; symmetric eigenvalue problem; LOBPCG; preconditioning
Citation Formats
Shao, Meiyue, Aktulga, H. Metin, Yang, Chao, Ng, Esmond G., Maris, Pieter, and Vary, James P. Accelerating nuclear configuration interaction calculations through a preconditioned block iterative eigensolver. United States: N. p., 2017.
Web. doi:10.1016/j.cpc.2017.09.004.
Shao, Meiyue, Aktulga, H. Metin, Yang, Chao, Ng, Esmond G., Maris, Pieter, & Vary, James P. Accelerating nuclear configuration interaction calculations through a preconditioned block iterative eigensolver. United States. https://doi.org/10.1016/j.cpc.2017.09.004
Shao, Meiyue, Aktulga, H. Metin, Yang, Chao, Ng, Esmond G., Maris, Pieter, and Vary, James P. Thu .
"Accelerating nuclear configuration interaction calculations through a preconditioned block iterative eigensolver". United States. https://doi.org/10.1016/j.cpc.2017.09.004. https://www.osti.gov/servlets/purl/1439235.
@article{osti_1439235,
title = {Accelerating nuclear configuration interaction calculations through a preconditioned block iterative eigensolver},
author = {Shao, Meiyue and Aktulga, H. Metin and Yang, Chao and Ng, Esmond G. and Maris, Pieter and Vary, James P.},
abstractNote = {In this paper, we describe a number of recently developed techniques for improving the performance of large-scale nuclear configuration interaction calculations on high performance parallel computers. We show the benefit of using a preconditioned block iterative method to replace the Lanczos algorithm that has traditionally been used to perform this type of computation. The rapid convergence of the block iterative method is achieved by a proper choice of starting guesses of the eigenvectors and the construction of an effective preconditioner. These acceleration techniques take advantage of special structure of the nuclear configuration interaction problem which we discuss in detail. The use of a block method also allows us to improve the concurrency of the computation, and take advantage of the memory hierarchy of modern microprocessors to increase the arithmetic intensity of the computation relative to data movement. Finally, we also discuss the implementation details that are critical to achieving high performance on massively parallel multi-core supercomputers, and demonstrate that the new block iterative solver is two to three times faster than the Lanczos based algorithm for problems of moderate sizes on a Cray XC30 system.},
doi = {10.1016/j.cpc.2017.09.004},
journal = {Computer Physics Communications},
number = ,
volume = 222,
place = {United States},
year = {Thu Sep 14 00:00:00 EDT 2017},
month = {Thu Sep 14 00:00:00 EDT 2017}
}
Web of Science
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