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/).
Programme of Monday, June 23th
10.00 – 11.00 Registration and welcome coffee
11.00 – 12.30 : PhD defense of Azzam Haidar (CERFACS) : 
On the parallel scalability of hybrid linear solvers for large three-dimensional problems
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
