Multigrid solver for the reference interaction site model of molecular liquids theory

In this article, we propose a new multigrid‐based algorithm for solving integral equations of the reference interactions site model (RISM). We also investigate the relationship between the parameters of the algorithm and the numerical accuracy of the hydration free energy calculations by RISM. For t...

Celý popis

Uložené v:
Podrobná bibliografia
Vydané v:Journal of computational chemistry Ročník 32; číslo 9; s. 1982 - 1992
Hlavní autori: Sergiievskyi, Volodymyr P., Hackbusch, Wolfgang, Fedorov, Maxim V.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.07.2011
Wiley Subscription Services, Inc
Predmet:
Accuracy
Algorithms
hydration free energy
integral equation theory
Integral equations
Molecular chemistry
multigrid
RISM
ISSN:0192-8651, 1096-987X, 1096-987X
On-line prístup:Získať plný text
Tagy: Pridať tag
Žiadne tagy, Buďte prvý, kto otaguje tento záznam!
Popis
Shrnutí:In this article, we propose a new multigrid‐based algorithm for solving integral equations of the reference interactions site model (RISM). We also investigate the relationship between the parameters of the algorithm and the numerical accuracy of the hydration free energy calculations by RISM. For this purpose, we analyzed the performance of the method for several numerical tests with polar and nonpolar compounds. The results of this analysis provide some guidelines for choosing an optimal set of parameters to minimize computational expenses. We compared the performance of the proposed multigrid‐based method with the one‐grid Picard iteration and nested Picard iteration methods. We show that the proposed method is over 30 times faster than the one‐grid iteration method, and in the high accuracy regime, it is almost seven times faster than the nested Picard iteration method. © 2011 Wiley Periodicals, Inc. J Comput Chem, 2011
Bibliografia:ark:/67375/WNG-VTQPHF50-6
Deutsche Forschungsgemeinschaft (DFG)-German Research Foundation - No. FE 1156/2-1
ArticleID:JCC21783
istex:BF0B8D4B5D1AABDF7B06A349FA088AE7DD5142AC
49‐(0)‐341‐9959‐804; fax: +49‐(0)‐341‐9959‐999
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ObjectType-Article-1
ObjectType-Feature-2
content type line 23
ISSN:0192-8651
1096-987X
1096-987X
DOI:10.1002/jcc.21783