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CSC05 : Program schedule

CSC05 : Program schedule

 

Programme of Tuesday, June 21st

9.00 – 9.30 Registration
9.30 – 9.45 Welcome

Invited talk
9.45 – 10.45 S. C. Eisenstat (Yale University, U.S.A.) The elimination tree of a nonsymmetric matrix: theory and applications (abstract) (pdf)

11.45 – 11.15 Coffee break

Session on Sparse Matrix Orderings
11.15 – 11.45 S. Li Unsymmetric greedy orderings for stable sparse factorization (abstract) (pdf)
11.45 – 12.15 J. Scott Reducing the total bandwidth of a sparse unsymmetric matrix (abstract) (pdf)
12.15 – 12.45 S. Pralet Scalable pivoting strategies and ordering for sparse symmetric indefinite problems (abstract) (pdf)

12.45 – 14.30 Lunch

Industrial track
14.30 – 15.15 V. D. Cung (INPG, France) Combinatorial Optimization in Industrial Applications: from Serial Code Optimization to Grid Computing (abstract)

Session on Combinatorial Matrix Theory
15.15 – 15.45 I. Safro Multilevel Algorithms for Linear Ordering Problems (abstract)
15.45 – 16.15 Coffee break
16.15 – 16.45 S. H. Teng Lower-Stretch Spanning Trees (abstract)
16.45 – 17.15 S. Toledo Algebraic Connectivity of Finite-Element Hypergraphs (abstract) (pdf)

17.15 – 19.00 Poster session

E. Agullo An out-of-core extension of a parallel sparse multifrontal solver (abstract)
R. Bisseling Partitioning a call graph (abstract)
V. Boyer A new heuristic for the multidimensional knapsack problem (abstract)
D. Fritzsche Extensions of certain graph-based algorithms for preconditioning (abstract)
C. Hamerling and C. Puglisi Test for Large Systems of Equations: a Grid project (abstract)
T. Iwashita New evaluation index of orderings in incomplete factorization preconditioning (abstract)
F. Jézéquel Dynamical control of approximation methods (abstract)
D. Kincaid Notes on GMRES algorithm organization (abstract)
Ph. Langlois and N. Louvet Fast and Extra Precise Substitution (abstract)
A. Pinar Vulnerability analysis of electric power networks (abstract)
A. Pothen New algorithms for acyclic and star coloring (abstract)
S. Toledo Locality of reference in sparse Cholesky factorization methods (abstract)
J. Utke On face elimination in computational graphs (abstract)

 

 

Programme of Wednesday, June 22nd

Invited talk
9.00 – 10.00 D. Halperin (Tel Aviv University, Israel) Controlled perturbation for certified geometric computing with fixed precision arithmetic (abstract) (pdf)

Session on Numerical Algorithms
10.00 – 10.30 D. Ruiz A scaling algorithm to equilibrate both row and column norms in matrices (abstract)
10.30 – 11.00 M. Tuma Preconditioning of iterative methods for solving sequences of linear systems (abstract) (pdf)

11.00 – 11.30 Coffee break

Session on Automatic Differentiation and sparse Jacobian estimation
11.30 – 12.00 M. Goyal Optimal bi-directional determination of sparse Jacobian matrices abstract (abstract) (pdf)
12.00 – 12.30 J. Utke Minimizing operation counts and maximizing data locality for efficient derivative codes in automatic differentiation (abstract)
12.30 – 13.00 S. Bhowmick A Backtracking Correction heuristic for improving performance of graph coloring algorithms (abstract) (pdf) (ppt)

13.00 – 14.30 Lunch

Industrial track
14.30 – 15.15 G. Alléon (EADS-CCR, France) A high performance 3D simulation framework for acoustics: from mesh generation to visualization (abstract)

Session on Emerging Applications
15.15 – 15.45 A. Pinar Reorganizing bitmap tables for improved compression (abstract)

15.45 – 16.15 Coffee break

16.15 – 16.45 R. Preis Integrating multilevel graph partitioning with hierarchical set oriented methods for the analysis of dynamical systems (abstract) (pdf)
16.45 – 17.15 S. Oliveira Matrix-based algorithms for document clustering (abstract)

Session on Parallel Optimization
17.15 – 17.45 C. Phillips Randomized rounding for sensor placement problems (abstract)

Cocktail at the Town-Hall

Banquet

 

Programme of Thursday, June 23rd

 

Invited talk
9.15 – 10.15 D. Trystram (IMAG, France) Efficient algorithms for scheduling the tasks of parallel programs (abstract)  (pdf)  (ppt)

Session on Linear and Integer Programming
10.15 – 10.45 J. Hall SYNPLEX, a task-parallel scheme for the revised simplex method (abstract)  (pdf 1)  (pdf 2)

10.45 – 11.15 Coffee break

Session on Sparse Direct Methods
11.15 – 11.45 L. Grigori Parallel symbolic sparse LU factorization with static pivoting (abstract)
11.45 – 12.15 A. Guermouche Flexible task allocation for the memory minimization of the multifrontal approach (abstract)  (pdf)

Industrial track
12.15 – 13.00 D. Goudin / M. Mandallena (CEA-CESTA, France) CEA s Parallel industrial codes in electromagnetics (abstract)  (pdf)  (ppt)

13.00 – 14.30 Lunch

Session on Graph Algorithms
14.30 – 15.00 C. Aykanat Hypergraph-partitioning-based sparse matrix ordering (abstract)  (pdf)
15.00 – 15.30 E. Boman Parallel hypergraph partitioning for scientific computing (abstract)  (pdf)  (ppt)
15.30 – 16.00 M. Halappanavar Vertex-weighted matching algorithms for computing column-space basis   (pdf)

16.00 – 16.15 Closure

NEWS

New regional climate projections for metropolitan France

superadmin |  11 February 2021

Cerfacs collaborated with Météo France and the Institut Pierre-Simon-Laplace (IPSL) to produce the DRIAS climate dataset, which presents a wide range of possible climate changes for metropolitan France for three periods of the 21st century (2021-2050, 2041-2070 and 2071-2100) and three greenhouse gas emission scenarios. Liens : .pdfRead more


New research group “Theory and Climate”

Mélanie ROCHOUX |  1 February 2021

CECI is involved in the development of a new research group (GDR for “Groupement De Recherche”) entitled “Theory and Climate”. This GDR aims at bringing together the entire community of theorists (mathematicians, physicists, computer scientists, data scientists, etc.) working on climate sciences, with the goal of developing and sharing innovative concepts and tools relevant for a better understanding of climate dynamics. This GDR is interdisciplinary and involves several CNRS research institutes as well as most of French organizations working in these fields. CECI plans to contribute to issues related to climate dynamics and applied mathematics such as data assimilation and machine learning. Moreover, there are strong links between this GDR and the LEFE-INSU actions, in which CECI researchers are active (LEFE-IMAGO and LEFE-MANU actions). More information here:Read more

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