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An Adaptive Multilevel Factorized Sparse Approximate Inverse Preconditioning

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985807%3A_____%2F17%3A00473670" target="_blank" >RIV/67985807:_____/17:00473670 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11320/17:10331041 RIV/46747885:24220/17:00008819

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.advengsoft.2016.10.005" target="_blank" >http://dx.doi.org/10.1016/j.advengsoft.2016.10.005</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.advengsoft.2016.10.005" target="_blank" >10.1016/j.advengsoft.2016.10.005</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    An Adaptive Multilevel Factorized Sparse Approximate Inverse Preconditioning

  • Original language description

    This paper deals with adaptively preconditioned iterative methods for solving large and sparse systems of linear equations. In particular, the paper discusses preconditioning where adaptive dropping reflects the quality of preserving the relation UZ=I, where U and Z are the triangular factors of A and its inverse, respectively. The proposed strategy significantly extends and refines the previously developed approach, by using a specific multilevel framework. Numerical experiments with two levels demonstrate that the new preconditioning strategy is very promising. Namely, we show a surprising fact that in our approach the Schur complement is better to form in a more sophisticated way than by a standard sparse matrix-matrix multiplication.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10102 - Applied mathematics

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Advances in Engineering Software

  • ISSN

    0965-9978

  • e-ISSN

  • Volume of the periodical

    113

  • Issue of the periodical within the volume

    November

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    6

  • Pages from-to

    19-24

  • UT code for WoS article

    000413675600004

  • EID of the result in the Scopus database

    2-s2.0-85002488023