Sparse Days at CERFACS Meeting,
June 15-16, 2006, Toulouse, France


Programme of Thursday, June 15th


09.00 - 10.00 Registration and Coffee break
10.00 - 10.15 Welcome
Session on constrained optimization
10.15 - 10.45 M. Saunders LUSOL and its uses in optimization
10.45 - 11.15 Coffee break
11.15 - 11.45 N. Gould Finding a well-centred point for a set of polyhedral constraints
11.45 - 12.15 J. Hall Parallel matrix inversion for the revised simplex method - A study
12.15 - 12.45 C. Cartis A new perspective on the complexity of interior point methods for linear programming

Lunch

Session on unconstrained optimization
14.30 - 15.00 J.D. Muller Simultaneous time-stepping methods for optimal design
15.00 - 15.30 A. Sartenaer Recursive Trust-Region Methods for Multiscale Nonlinear Optimization
15.30 - 16.00 C. Sainvitu Use of approximate derivatives in the filter-trust-region method for unconstrained optimization
16.00 - 16.30 Coffee break
Session on data assimilation
16.30 - 17.00 N.K. Nichols Using model reduction in Gauss-Newton optimization with applications to data assimilation
17.00 - 17.30 J. Tshimanga On some preconditioning techniques for linear least-squares problems with multiple right-hand sides
17.30 - 18.00 G. Desroziers Large least-squares problems in Meteorology
18.00 - 19.00 Poster session
M. Rojas A Comparison of Methods for the Large-Scale Trust-Region Subproblem
A. Fèvre MUMPS: a MUltifrontal Massively Parallel Solver

Programme of Friday, June 16th


Session on iterative methods for linear systems
09.15 - 09.45 M. Arioli On GMRES preconditioned by a perturbed LDLT decomposition with static pivoting
09.45 - 10.15 S. Dollar Implicit factorization constraint preconditioners and permutations
10.15 - 10.45 S. MacLachlan Greedy strategies for multilevel partitioning
10.45 - 11.15 Coffee break
Session on sparse techniques
11.15 - 11.45 G. Gundersen Sparsity in Higher Order Methods in Optimization
11.45 - 12.15 A. Pothen The Optimal Computation of Hessians in Optimization
12.15 - 12.45 Ph. L. Toint Recognizing Underlying Sparsity in Optimization

Lunch

Session on derivative free optimization
14.30 - 15.00 M. Garcia Neuronal networks for derivative free optimization
15.00 - 15.30 M. Sosonkina Performance Studies of a Parallel Global Search on System X
Session on sparse solvers
15.30 - 16.00 Tz. Slavova Efficient triangular solution in sparse out-of-core solvers
16.00 - 16.30 Closure and Coffee break