The Induced Dimension
Reduction method,
IDR(\(s\)), is a robust and
efficient short-recurrence Krylov subspace method for solving large
nonsymmetric systems of linear equations.
IDR(\(s\))
compared to
BI-CGSTAB/BiCGStab(\(\ell\)):
Faster.
More robust.
More flexible.
Note:
IDR(\(s\))
is not
a variant of BI-CGSTAB.
BI-CGSTAB is the special case IDR(1).
\(s\)
in IDR(\(s\))
and \(\ell\) in BiCGStab(\(\ell\))
are not the same!
Available here:
Matlab, Python, Fortran, and Julia implementations of
IDR(\(s\)).
Examples and Test Problems.
Publications.
Software
Timeline
2016: IDR(\(s\))
included in the MAGMA (Matrix
Algebra on GPU and Multicore Architectures) library by the Innovative
Computing Laboratory (ICL) at the University of Tennessee.
July 8, 2010: Invited talk on
IDR(\(s\)) at the
ICCAM 2010 conference in
Leuven, Belgium.
January 2010: IDR(\(s\))
(the biortho variant from [4], below) included in
IFISS 3.0, an open source Incompressible Flow & Iterative Solver
Software by Howard Elman, David Silvester and Alison Ramage.
Minisymposium participants (from left to right):
Kuniyoshi Abe, Martin Gutknecht,
Jens-Peter Zemke, Martin van Gijzen, Seiji Fujino, Peter Sonneveld,
Man-Chung Yeung, Gerard Sleijpen.
June 3, 2009: DCSE Symposium
IDR and Block Lanczos Solvers for Large Nonsymmetric Systems.
Speakers:
Martin Gutknecht, Martin van Gijzen, Man-Chung Yeung, Seiji Fujino,
Peter Sonneveld, and Jens-Peter Zemke.
March 17, 2008:Minisymposium 1 held during the
9th IMACS conference.
Speakers: Peter Sonneveld, Martin van Gijzen, Gerard Sleijpen,
Seiji Fujino, and Y. Onoue.
From IMACS NEWS March 2008:
Although this 9th edition was a little
bit rainy, it has been more than enlightened by
the contributions of more than 90 attendants representing more than 20
countries and a.o.
by a remarqued come back of the IDR method of our
friends from The Netherlands, which might bring a true breakthrough
in the field of Krylov subspace methods and of their
theoretical support.
March 12, 2007: Introducing
IDR(\(s\))!
TU Delft, Numerical Analysis Group Seminar.