CERFACS CERFACS Scientific Activity Report Jan. 2010 – Dec. 2011

PARALLEL ALGORITHMS PROJECT
July
WCGO11 - The Second World Congress on Global Optimization in Engineering & Science, Crete, Greece,
July 3-7, 2011.A. MUCHERINO, The Discrete Side of Distance Geometry and Exploiting NMR Information
for Solving Distance Geometry Problems, talks.
Universidad Tecnica Federico Santa Maria, Valparaiso, Chile. July 16-24, 2011. A. MUCHERINO
Optimization 2011 Conference, Lisboa, Portugal, July 24-27, 2011. S. GRATTON, An Active Set Trustregion
Method for Derivative-Free Nonlinear Bound-Constrained Optimization, contributed talk.
Minisymposium MS201 : The Linear Algebra of Optimization. Organizers : Michael Friedlander and Chen
Greif. Invited minisymposium speaker. ICIAM 2011, Vancouver, Canada. 17-22 July, 2011. I.S. DUFF, The
use of direct methods in the solution of sparse linear equations for constrained optimization.
August
COCOA11 - 5th Annual International Conference on Combinatorial Optimization and Applications,
Zhangjiajie, China, August 4-6, 2011. A. MUCHERINO, On the Number of Solutions of the Discretizable
Molecular Distance Geometry Problem, talk.
COPPE, Federal University of Rio de Janeiro, Brazil, August 16-29, 2011. A. MUCHERINO, The
Discretizable Molecular Distance Geometry Problem, invited talk.
HPSS 2011, EuroPar 2011, Bordeaux, 29 August 2011. I.S. DUFF, European Exascale Software Initiative :
Numerical Libraries, Solvers and Algorithms.
September
Tedx Session, Budapest, Hungary, September 23, 2011 F. CHATELIN, Mathematics of Life, invited seminar.
ESF OPTPDE Workshop, Fast solvers for simulation, inversion, and control of wave propagation problems,
University of Wuerzburg, Germany, September 26-28, 2011. X. VASSEUR, An Approximate Two-Level
Preconditioner Combined with flexible Krylov Subspace Methods for the Solution of Heterogeneous
Helmholtz Problems on Massively Parallel Computers.
October
The Ninth International Workshop on Adjoint Model Applications in Dynamic Meteorology, Cefalu, Sicily,
Italy, October 10-14, 2011. S. GÜROL, Preconditioning of conjugate-gradients in observation space for
4D-VAR, contributed talk.
RTRA-STAE Fall meeting, Toulouse, October 18, 2011. S. GRATTON, L’assimilation de données : une
approche générique pour la modélisation des systèmes complexes, invited seminar.
Large-Scale Inverse Problems and Applications in the Earth Sciences, Workshop at RICAM, Linz, Austria,
October 25, 2011. S. GRATTON, Dual methods for data assimilation in Geosciences, invited seminar.
CERFACS ACTIVITY REPORT 37