Laura Grigori's Home Page

Director of Research (DR1) INRIA
INRIA Paris, Alpines group,
joint with Laboratoire J.L. Lions, Sorbonne University
Paris, France
Phone: +33 (0) 1 44 27 93 03 (LJLL)
+ 33 (0) 1 80 49 42 60 (Inria)
Email: laura(dot)grigori(at)inria(dot)fr

Publications |  Projects |  Software |  Group  |   Teaching |  Professional services |  Plenary talks |  Jobs | 

Short bio

I received a Ph.D. in Computer Science (december 2001) from Université Henri Poincaré, France, INRIA Lorraine. After spending two years at UC Berkeley and LBNL as a postdoctoral researcher, I have joined INRIA in january 2004. I was a member of Sage group at INRIA Rennes and Grand-Large group at INRIA Saclay - Ile de France and LRI, Paris 11 University. Since January 2013 I am leading Alpines, a joint group between INRIA Paris and J.L. Lions Laboratory, Sorbonne University.
During the academic years 2014/2016 I was on a sabbatical leave as a Visiting Professor/Researcher at UC Berkeley.

Distinctions and awards

  • SIAM Fellow, 2020
  • ERC Syngergy Grant for the Extreme-scale Mathematically-based Computational Chemistry project (EMC2), 2018, with E. Cances, Y. Maday, and J.-P. Piquemal, EMC2 website and more details here
  • SIAM Siag on Supercomputing Best Paper Prize 2016 for the most outstanding paper published in 2012-2015 in a journal in the field of high performance computing. With J. Demmel, M. Hoemmen, and J. Langou for the paper Communication-Optimal Parallel and Sequential QR and LU Factorizations, published in SIAM Journal on Scientific Computing 2012.
  • Selected Invited Plenary Talks More details and slides by following the Talks link.
  • Plenary Lecture, 91st Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM) , March 15-19, 2021, Kassel, Germany.
  • Lecture in the online seminar series on numerical linear algebra, July 8, 2020, slides and the talk , Communication avoiding low rank matrix approximation, a unified perspective on deterministic and randomized approaches.
  • Invited speaker, Parallel Solution Methods for Systems Arising from PDEs, September 16-20, 2019, CIRM Marseille, talk Challenges in achieving scalable and robust linear solvers.
  • Invited plenary speaker, SIAM Conference on Computational Science and Engineering, February 2019, Communication Avoiding: The Past Decade and the New Challenges, slides and the talk.
  • Invited plenary speaker, SIAM Conference on Applied Linear Algebra, May 2018.
  • Keynote speaker, 46th International Conference on Parallel Processing (ICPP-2017), Bristol, UK, August 14-17, 2017.
  • Plenary talk, Householder Symposium XX on Numerical linear algebra, June 2017, Virginia Tech
  • Invited plenary speaker, International Conference on Domain Decomposition Methods DD XXIV, February 2017, Longyearbyen, Norway.
  • Invited plenary speaker, Fifth IMA Conference on Numerical Linear Algebra and Optimization, University of Birmingham, UK, September 7-9 2016.
  • Invited speaker, Supercomputing SC15, the talk on youtube, the blog, and a picture (thanks to Anda!), Austin, November 2015.
  • Talk at College de France, online , January 2014
  • Invited plenary speaker, GAMM Workshop on Applied and Numerical Linear Algebra, September 2013
  • Invited plenary speaker, SIAM Conference on Parallel Processing for Scientific Computing 2012, Avoiding Communication in Linear Algebra , the slides and the talk .
  • Invited plenary speakery, Parallel Matrix Algorithms and Applications Conference 2010, PMAA10.

  • Main current research projects

    (more details by following the Projects link)
  • Communication Avoiding Algorithms in Linear Algebra
    An overview talk from SC15 on youtube
    Recent slides and talk from SIAM CSE 19.
  • ERC Syngergy Grant for the Extreme-scale Mathematically-based Computational Chemistry project (EMC2), 2018, with E. Cances, Y. Maday, and J.-P. Piquemal, EMC2 website
  • Parallel preconditioners and iterative methods for scientific applications
  • Cosmic Microwave Background Data Analysis on large scale computers

  • Research Interests

  • Numerical linear algebra, deterministic and randomized algorithms
  • High performance computing for scientific applications
  • High dimensional problems and tensor computations
  • Combinatorial scientific computing
  • Mathematical Software

  • Teaching

    More details and slides here.
  • Since 2018, Coordinator of the High Performance in Scientific Computing Major, second year of Mathematics and Applications Master, UPMC.
  • Since spring 2017: High performance computing for numerical methods and data analysis, UPMC, Master 2 Mathematics and Applications.
  • Spring 2016: Co-teaching CS294 class on Communication Avoiding Algorithms, with J. Demmel, UC Berkeley.
  • Fall 2015: Guest lecture in CS294 class on "Randomized Algorithms in Linear Algebra" of Ravi Kannan, November 24, 11-12:30 PM, slides .
  • Spring 2015: Reading group on Randomized numerical linear algebra, UC Berkeley.
  • Spring 2015: Guest lecturer in CS267, UC Berkeley, (lectures 13 to 16), videos here.
  • Spring 2014: High performance computing, large scale linear algebra algorithms, numerical stability , UPMC, Master 2 Mathematics and Applications.

  • Editorial boards and other responsabilities

  • Vice-chair of the PRACE (Partnership for Advanced Computing in Europe) Scientific Steering Committee since March 2020, member since september 2016 - current.
  • Member of Scientific Committee of the Prace Fast Track Call for Proposals in support to mitigate impact of Covid 19, opened in March 2020.
  • Member of the SIAM Council, January 2018 - December 2020.
  • Vice-president of the Evaluation Committee of Inria, March 2018 - August 2019.
  • Chair of the SIAM SIAG on Supercomputing, January 2016 - December 2017.
  • Steering commitee member, Challenge 7: Information and communication society, ANR (Comite de Pilotage , Defi 7, French National Funding Agency), November 2016 - September 2017.
  • Program Director of the SIAM SIAG on Supercomputing, January 2014 - December 2015.
  • Member of the editorial board for the SIAM book series Software, Environments and Tools, since March 2014.
  • Associate Editor, SIAM Journal on Scientific Computing, since January 2016.
  • Associate Editor, SIAM Journal on Matrix Analysis and Applications, since January 2017.
  • Member of the editorial board, Numerical linear algebra with applications Journal, Wiley, since January 2016.
  • Area editor for Parallel Computing Journal, Elsevier, since June 2013.

  • Selected conference responsabilities

  • Area vice-chair for Algorithms, Supercomputing 2021
  • Co-chair of the upcoming SIAM Conference on Computational Science and Engineering, 2021.
  • Co-organizer with N. Higham and J. Dongarra of Numerical algorithms for high-performance computational science meeting, funded by the Royal Society Hooke Scientific meeting, April 2019. Slides and Nick Higham's post available here.
  • Co-organizer of the 10th Gene Golub Summer School on High Performance Data Analytics, Aussois, France, June 2019.
  • Co-chair of SIAM Conference on Parallel Processing, Paris, April 2016
  • Co-chair of Parallel Matrix Algorithms and Applications PMAA Workshop, Lugano 2014
  • Topic Chair of Parallel Numerical Algorithms, EuroPar 2014
  • Area Co-chair of the Algorithms Area, Supercomputing 2013
  • Member of the best paper/ best student paper jury, Supercomputing 2012
  • Organizing committee member: SIAM Conference on Parallel Processing and Scientific Computing, February 2014, Portland, USA.
  • Program Committee member (a selection):
    Supercomputing Conferences SC 2009, SC 2010, SC 2012, SC 2015.
    IPDPS 2011, IPDPS 2013, IPDPS 2014, IPDPS 2015, IPDPS 2016.
    HiPC 2014, HiPC 2015.
    PPAM 2009, PPAM 2013, PPAM 2015.
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    Laboratoire J. L. Lions
    Sorbonne University
    Contact: Laura Grigori (Laura(dot)Grigori(at)inria(dot)fr)

    © 2007 rs