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Sparse Days Meeting 2008 at Cerfacs

Sparse Days Meeting 2008 at CERFACS
June 23rd-24th, 2008

The Parallel Algorithms Team at CERFACS split its annual “Sparse Days at CERFACS” this year as a specific workshop inside the VECPAR conference (http://vecpar.fe.up.pt/2008/).

 

Adobe_PDF_file_icon_24x24 List of Participants


Programme of Monday, June 23th


10.00 – 11.00 Registration and welcome coffee


11.00 – 12.30 : PhD defense of Azzam Haidar (CERFACS) : Adobe_PDF_file_icon_24x24On the parallel scalability of hybrid linear solvers for large three-dimensional problems

A. Haidar - SD2008

PhD Thesis

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

NEWS

Young PhD day (JDD) – Thursday 8 October 2020

Brigitte Yzel |  24 September 2020

  Ph.D. Students' Day (JDD 2020) Thursday 8 October 2020 Virtual event open to our partners and associates   Planning   The 2020 edition of the PhD Students' Day will take place on October 8th, 2020. This year, this day of the PhD students of the Cerfacs, will take place mainly in visio in order to respect all the health safety measures relating to Covid-19. This day will be held in a virtual way through oral presentations filmed and broadcast on a private link, which we will distribute to all participants. Everyone will thus be able to discover at a distance the subjects developed by the doctoral students. At the same time, the "Posters session" will be opened on the morning of the JDD, by sending all the posters in pdf format by e-mail to all the participants for consultation, and by opening the "50-minute question session" on a channel whose links we will send you. This will allow participants to ask questions about the posters of the session. Finally, we have included in this 5th edition a great novelty, by allowing several students to present their subject in the popularised form of "My thesis in 3 minutes", guided by Matthieu Pouget, actor and theatre director. This day will end with the vote for the "Best poster" and the "Best presentation of My thesis in 3 minutes". Participation in the event is free of charge. However, for logistical reasons, registration, only by invitation, is mandatory.   Organising Committee:  Scientific committee  Nicolas Venkovic Victor Xing Inscription &  information Jade Schweiger Brigitte Yzel  Read more


Sparse Days 2020, Cerfacs

Brigitte Yzel |  24 September 2020

Sparse Days Meeting 2020  23 - 24 November 2020 Virtual Workshop   The annual Sparse Days meeting will be held this year as a virtual event, on 23 - 24 November 2020. Sadly, because of the pandemic, we will not be able to have a normal face-to-face Sparse Days at Cerfacs this year. We will be holding an online version from 3pm to 7pm on 23 and 24 November. The timing is chosen to accommodate participants from North America since, at normal Sparse Days, we have a good representation from there. A registration form  is available on this conference website where you can also submit a title and an abstract for any proposed talk. We will probably be using the Webex system and will post details about how to connect to all people who register.Read more

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