Tuesday, October 7, 2025

Time Event (+)
14:00 - 17:30 Theo Mary's habilitation defense  
17:30 - 19:00 Workshop cocktail reception  

Wednesday, October 8, 2025

Time Event (+)
08:00 - 08:30 Welcome coffee  
08:30 - 08:40 Opening remarks  
08:40 - 10:20 Session 1 - Chair: Valeria Simoncini (+)  
08:40 - 09:00 › Avoiding breakdown in incomplete factorizations in low precision arithmetic - Jennifer Scott, STFC-Rutherford Appleton Laboratory  
09:00 - 09:20 › Mixed precision strategies for preconditioned GMRES - Bastien Vieublé, Chinese Academy of Sciences  
09:20 - 09:40 › The numerical stability of sketched GMRES - Liam Burke, Charles University  
09:40 - 10:00 › On the numerical stability of the preconditioned conjugate gradient algorithm using mixed precision - Thomas Bake, Charles University  
10:00 - 10:20 › Mixed precision augmented GMRES - Yongseok Jang, LIP6  
10:20 - 11:00 Coffee break  
11:00 - 12:20 Session 2 - Chair: Jean-Michel Muller (+)  
11:00 - 11:20 › Is Mixed Precision Computing really the Top Priority? - Hartwig Anzt, Technical University of Munich  
11:20 - 11:40 › Emulating High-precision Matrix Operations on Low-precision Matrix Engines - Rio Yokota, Institute of Science Tokyo  
11:40 - 12:00 › Computing Floating-Point Matrix Products via Low-Precision Integer Arithmetic - Massimiliano Fasi, University of Leeds  
12:00 - 12:20 › How Tensor Core-Accelerated Mixed-Precision Computing and Floating-Point Emulation Can Improve Linear Algebra Performance and Energy Efficiency - Harun Bayraktar, NVIDIA  
12:20 - 14:00 Lunch  
14:00 - 15:40 Session 3 - Chair: Paolo Bientinesi (+)  
14:00 - 14:20 › A practical, fully parallel implementation of the (H-)Tucker decomposition via randomization - Martina Iannacito, Università di Bologna  
14:20 - 14:40 › Recent advances in mixed-precision low-rank tensor approximations - Eda Oktay, Max Planck Institute for Dynamics of Complex Technical Systems  
14:40 - 15:00 › TT-FEAST: A High-Dimensional Eigenvalue Solver using Contour Integration and Tensor Train format - Mohammad Issa, CEA LIST  
15:00 - 15:20 › Error Controlled Compression of Scientific Data with Low-Rank Approximations - George Turkiyyah, KAUST  
15:20 - 15:40 › Floating Point Compression for H-Matrices - Clément Peaucelle, Airbus  
15:40 - 16:20 Coffee break  
16:20 - 18:00 Session 4 - Chair: Hartwig Anzt (+)  
16:20 - 16:40 › Surrogate techniques for matrix-free sparse linear solvers - Ulrich Rüde, CERFACS, VSB-Technical University of Ostrava, FAU Erlangen-Nürnberg  
16:40 - 17:00 › Multigrid with Linear Storage Complexity - Daniel Bauer, Friedrich-Alexander-Universität Erlangen-Nürnberg  
17:00 - 17:20 › Mixed precision multigrid V-cycle method - Petr Vacek, IFPEN  
17:20 - 17:40 › Mixed Precision Domain Decomposition Preconditioners: Perturbation Analysis and Practical Guidelines - Tom Caruso, LJLL  
17:40 - 18:00 › Two-level asynchronous substructuring domain decomposition solvers - Frédéric Magoulès, CentraleSupéléc  

Thursday, October 9, 2025

Time Event (+)
08:00 - 08:30 Welcome coffee  
08:30 - 10:10 Session 5 - Chair: Julien Langou (+)  
08:30 - 08:50 › Fast randomized algorithms for rank structured matrices - Per-Gunnar Martinsson, University of Texas at Austin  
08:50 - 09:10 › A novel fixed-accuracy variant of the Randomized Interpolative Decomposition algorithm - Karmijn Hoogveld, IRIT  
09:10 - 09:30 › Sketching strategies as NLA companion - Valeria Simoncini, Università di Bologna  
09:30 - 09:50 › Adaptive Sketching Based Construction of H2 Matrices on GPUs - Xiaoye Sherry Li, LBNL  
09:50 - 10:10 › Accelerating an ensemble of variational data assimilations with randomized preconditioning - Ieva Daužickaitė, CERFACS  
10:10 - 10:50 Coffee break  
10:50 - 12:10 Session 6 - Chair: Rio Yokota (+)  
10:50 - 11:10 › Mixed precision algorithms with neural operator preconditioning for solving some parametric PDEs - Yanfei Xiang, IRMA  
11:10 - 11:30 › A Matrix Factorization Framework for Community Detection under the Degree-Corrected Block Model - Alexandra Dache, Université de Mons  
11:30 - 11:50 › Integrative Co-Embedding of Multi-View Data Sets - Haesun Park, Georgia Institute of Technology  
11:50 - 12:10 › Minimum-norm solution of the non-symmetric semidefinite Procrustes problem - Stefano Sicilia, Université de Mons  
12:10 - 14:30 Lunch + poster session (+)  
12:10 - 14:30 › Orthogonalization Avoidant Davidson - Ioannis Thanasis, Charles University  
12:10 - 14:30 › Mixed precision iterative refinement for least squares with linear equality constraints and generalized least squares problems - Bowen Gao, Fudan university  
12:10 - 14:30 › Mixed-Precision and Energy-Efficient Computations - Yanxiang Chen, Umeå University  
12:10 - 14:30 › PROMISE: Dynamic mixed precision analysis for numerical algorithms - Xinye Chen, LIP6  
12:10 - 14:30 › Three examples of reduced precision with sparsity in high-fidelity simulations - Hans Johansen, LBNL  
12:10 - 14:30 › Do you precondition on the left or on the right ? - Nicole Spillane, CMAP  
14:30 - 16:10 Session 7 (+)  
14:30 - 14:50 › Software emulation of 3Sum, the FMA and other operations. - Jean-Michel Muller, LIP  
14:50 - 15:10 › Accuracy of Mathematical Functions in Julia - Mantas Mikaitis, University of Leeds  
15:10 - 15:30 › Fast and accurate sub-cubic matrix multiplication - Clément Pernet, Grenoble INP - UGA, LJK  
15:30 - 15:50 › Probabilistic Error Analysis of Limited-Precision Stochastic Rounding - El-Mehdi El Arar, IRISA  
15:50 - 16:10 › Mixed-Precision Strategies in Spectral Element Codes: Accuracy-Aware Approximation for Energy-Efficient Simulations - Roman Iakymchuk, Umeå University  
16:10 - 16:50 Coffee break  
16:50 - 18:30 Session 8 - Chair: Patrick Amestoy (+)  
16:50 - 17:10 › < T >LAPACK: a new linear algebra software package with mixed-precision capabilities - Julien Langou, University of Colorado Denver  
17:10 - 17:30 › A composable abstraction of hierarchical methods for matrix-vector product acceleration - Antoine Gicquel, LABRI  
17:30 - 17:50 › Mixed Precision Strategies for Solving Sparse Linear Systems with BiCGStab - Hugo Dorfsman, LIP6 - IFPEN  
17:50 - 18:10 › Solving Big Problems with Little Numbers - Hatem Ltaief, KAUST  
18:10 - 18:30 › Approximate solutions to (generalized) matrix chains - Paolo Bientinesi, Umeå University  

Friday, October 10, 2025

Time Event (+)
08:00 - 08:30 Welcome coffee  
08:30 - 10:10 Session 9 (+)  
08:30 - 08:50 › Computing accurate eigenvalues using a mixed-precision Jacobi algorithm - Françoise Tisseur, University of Manchester  
08:50 - 09:10 › A randomized Krylov-Schur eigensolver, featuring mixed-precision and deflation - Jean-Guillaume De Damas, LJLL  
09:10 - 09:30 › Randomized Two-Sided Gram-Schmidt Process With Applications - Lorenzo Piccinini, Università di Bologna  
09:30 - 09:50 › Minimal Residual Rational Krylov Subspace Method for Sequences of Shifted Linear Systems - Davide Palitta, Università di Bologna  
09:50 - 10:10 › Error formulas for block rational Krylov approximations of matrix functions - Stefano Massei, Università di Pisa  
10:10 - 10:50 Coffee break  
10:50 - 12:30 Session 10 - Chair: Sherry Li (+)  
10:50 - 11:10 › A Journey Through Numerical Linear Algebra Algorithms with Variable Accuracy Storage - Emmanuel Agullo, Inria  
11:10 - 11:30 › Memory Accessor for Mixed-precision GMRES-based iterative refinement - Antoine Jego, LIP6  
11:30 - 11:50 › Mixed-Precision FGMRES for Large Lyapunov Equations - Jonas Schulze, Max Planck Institute for Dynamics of Complex Technical Systems  
11:50 - 12:10 › Mixed-precision iterative refinement for low-rank Lyapunov equations - Xiaobo Liu, Max Planck Institute for Dynamics of Complex Technical Systems  
12:10 - 12:30 › A mixed precision quantum-classical algorithm for solving linear systems - Marc Baboulin, Laboratoire Méthodes Formelles  
12:30 - 14:00 Lunch  
CNRS CCSD Sciencesconf