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Colloque Sparse Days 2008 au Cerfacs

Colloque “Sparse Days” 2008 au CERFACS
23-24 Juin 2008

L’équipe Algorithmes Parallèles du Cerfacs propose cette année son colloque annuel “Sparse Days” comme un atelier spécifique à l’intérieur de la conférence VECPAR (http://vecpar.fe.up.pt/2008/).

 

Adobe_PDF_file_icon_24x24 Liste des Participants

 


Programme of Monday, June 23th


10.00 – 11.00 Registration and welcome coffee


11.00 – 12.30 : PhD defense of Azzam Haidar (CERFACS) : Adobe_PDF_file_icon_24x24On the parallel scalability of hybrid linear solvers for large three-dimensional problems

A. Haidar - SD2008

Soutenance de thèse

13.00 – 14.30 Lunch

14.30 – 15.00 : Mario Arioli (RAL) : Matrix square root and interpolation spaces
15.00 – 15.30 : Osni Marques (Lawrence Berkeley National Laboratory) : Parallel Eigensolvers for a Discretized Radiative Transfer Problem
15.30 – 16.00 : Luca Amodei (UPS) : An invariant subspace method for large-scale algebraic Riccati equation

16.00 – 16.30 Pause

16.30 – 17.00 : Dominique Orban (GERAD and Ecole Polytechnique, Montreal) : Projected Krylov Methods for Unsymmetric Augmented Systems
17.00 – 17.30 : Karl Gustafson (University of Colorado at Boulder) : Normal Degree and Krylov Sequences

17.30 PhD Cocktail

Programme of Tuesday, June 24th

9.30 – 10.00  :  Vincent Malmedy (FUNDP) : Approximating Hessians in multilevel unconstrained optimization
10.00 – 10.30 : Pascal Hénon (LaBRI and INRIA Bordeaux-Sud-Ouest – Scalapplix project) HIPS : A parallel hybrid direct/iterative solver based on a Schur complement approach
10.30 – 11.00 : Xiaoye Sherry Li (Lawrence Berkeley National Laboratory) : Scalability issues in sparse factorization and triangular solution

11.00 – 11.30 Pause

11.30 – 12.00 : Mario Arioli (RAL) : Backward stability of FGMRES
12.00 – 12.30 : Jonathan Hogg (RAL) : On the use of mixed precision for the fast and robust solution of sparse symmetric linear systems

12.30 – 14.00 Lunch

14.00 – 14.30 : Gérard Meurant (CEA) : Computing the trace of the inverse of sparse matrices using modified moments
photo (Gene Golub in Toulouse)
14.30 – 15.00 : Pierre Maréchal (UPS) : On regularization by mollification
15.00 – 15.15 : Jennifer Scott (RAL) : Gene meets Gronwall

20.00 – 23.00 Sparse Days dinner