@Article{EAJAM-7-495,
author = {Xiaoqiang Yue, Xiaowen Xu and Shi Shu},
title = {JASMIN-Based Two-Dimensional Adaptive Combined Preconditioner for Radiation Diffusion Equations in Inertial Fusion Research},
journal = {East Asian Journal on Applied Mathematics},
year = {2018},
volume = {7},
number = {3},
pages = {495--507},
abstract = {<p style="text-align: justify;">We present a JASMIN-based two-dimensional parallel implementation of an
adaptive combined preconditioner $B^α_{co}$ for the solution of linear problems arising in the
finite volume discretisation of one-group and multi-group radiation diffusion equations.
We first propose the attribute of patch-correlation for cells of a two-dimensional monolayer
piecewise rectangular structured grid without any suspensions based on the patch
hierarchy of JASMIN, classify and reorder these cells via their attributes, and derive the
conversion of cell-permutations. Using two cell-permutations, we then construct some
parallel incomplete LU factorisation and substitution algorithms, to provide our parallel $B^α_{co}$-GMRES solver with the help of the default BoomerAMG in the HYPRE library.
Numerical results demonstrate that our proposed parallel incomplete LU preconditioner
(ILU) is of higher efficiency than the counterpart in the Euclid library, and that the proposed
parallel $B^α_{co}$-GMRES solver is more robust and more efficient than the default
BoomerAMG-GMRES solver.</p>},
issn = {2079-7370},
doi = {https://doi.org/10.4208/eajam.061116.230417a},
url = {http://global-sci.org/intro/article_detail/eajam/10761.html}
}