SAGE - 2012 - Annual activity report

SAGE

Overall Objectives

Scientific Foundations

Application Domains

Software

New Results

Bilateral Contracts and Grants with Industry

Partnerships and Cooperations

Dissemination

Bibliography

Section: Software

Participants : Édouard Canot, Jocelyne Erhel [correspondant] .

Version: version 1.0, May 2008
APP: registered
Programming language: C++
See also: http://www.irisa.fr/sage/ .
Abstract: GPREMS implements a robust hybrid solver for large sparse linear systems that combines a Krylov subspace method as accelerator with a Schwarz-based preconditioner. This preconditioner uses an explicit formulation associated to one iteration of the multiplicative Schwarz method. The Newton-basis GMRES, which aims at expressing a good data parallelism between subdomains is used as accelerator.