Low Rank compression for sparse matrices

From BLR to HODLR

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Without reordering

Classical symbolic factorization

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With reordering

Apply TSP on supernodes

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PaStiX

** Solve your sparse linear system **

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Latest release 6.2.1

Biography

Pierre Ramet is a full professor in computer science at Bordeaux University. His interests span high-performance computing, focusing on sparse linear algebra. He leads the team in charge of developing PaStiX, a high-performance sparse direct solver.

Research team: TOPAL (Tools and Optimization for high Performance Applications and Learning)

ANR supports:

Industrial partners:

Associate teams with:

  • Stanford University (Institute for Computational and Mathematical Engineering)
  • LBNL (Lawrence Berkeley National Laboratory)
  • ICL (University of Tennessee)

PhD advising:

Full CV (french)

Teaching Page (french)

Interests

  • Sparse Linear Algebra
  • Parallel Algorithms
  • Scientific Computing

Education

  • HdR in Computer Science, 2017

    Bordeaux University

  • PhD in Computer Science, 2000

    Bordeaux University

Experience

 
 
 
 
 

Full Professor

Bordeaux University

Jan 2023 – Present Talence
Parallel algorithms in scientific computing
 
 
 
 
 

Head

SATANAS team of LaBRI (Bordeaux Computer Science Laboratory)

Jan 2020 – Present Talence
Head of the SATANAS (Supports and Algorithms for High Performance Numerical Applications) team
 
 
 
 
 

Scientific advisor

CEA (French Atomic Energy)

Jan 2015 – Present Le Barp
Scientific advisor in the field of high performance computing in numerical simulations
 
 
 
 
 

Deputy head

SATANAS team of LaBRI (Bordeaux Computer Science Laboratory)

Jan 2011 – Jan 2020 Talence
Deputy head of the SATANAS (Supports and Algorithms for High Performance Numerical Applications) team
 
 
 
 
 

Expert

GENCI (French supercomputing resources)

Jan 2008 – Jan 2016 Paris
Expert for Mathematics and Computer Science board
 
 
 
 
 

Assistant Professor

Bordeaux University

Jan 2000 – Jan 2023 Talence
Parallel algorithms in scientific computing

Recent Posts

PaStiX Release 6.2.1

See Gitlab Inria
Pierre Ramet
Apr 2, 2022 1 min read

Build PaStiX with Guix-HPC

See Gitlab Inria
Pierre Ramet
Nov 16, 2019 1 min read

Projects

*
All Sparse Linear Algebra Other

PaStiX 5

Parallel Sparse Direct Solver

PaStiX 6

Parallel Sparse Direct Solver

SPM

SParse Matrix Package

Recent Journal Publications

Quickly discover relevant content by filtering publications.

The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas

Matthias Hoelzl, Guido Huijsmans, Stanislas Pamela, Marina Bécoulet, Eric Nardon, Francisco Javier Artola, Boniface Nkonga, Calin Vlad Atanasiu, Vinodh Bandaru, Ashish Bhole, Daniele Bonfiglio, Andres Cathey, Olivier Czarny, Anastasia Dvornova, Tamas Fehér, Alexandre Fil, Emmanuel Franck, Shimpei Futatani, Marta Gruca, Hervé Guillard, Willem J. Haverkort, Ihor Holod, Di Hu, S.K. Kim, Sven Q. Korving, Leon Kos, Isabel Krebs, Lukas Kripner, Guillaume Latu, Franklin Liu, Peter Merkel, Dmytro Meshcheriakov, Verena Mitterauer, Serhiy Mochalskyy, Jorge A. Morales, Richard Nies, Nikita Nikulsin, François Orain, Jane Pratt, Rohan Ramasamy, Pierre Ramet, Cédric Reux, Konsta Särkimäki, N. Schwarz, Prabal Singh Verma, Siobhan Smith F., Cristian Sommariva, Erika Strumberger, Daan C. van Vugt, M. Verbeek, Egbert Westerhof, Fabian Wieschollek, Jeffery Zielinski
DOI URL

Efficient Parallel Solution of the 3D Stationary Boltzmann Transport Equation for Diffusive Problems

Salli Moustafa, François Févotte, Mathieu Faverge, Laurent Plagne, Pierre Ramet
DOI URL

Sparse supernodal solver using block low-rank compression: Design, performance and analysis

G. Pichon, E. Darve, M. Faverge, P. Ramet, J. Roman
DOI URL

Reordering Strategy for Blocking Optimization in Sparse Linear Solvers

G. Pichon, M. Faverge, P. Ramet, J. Roman
DOI URL

Efficient parallel resolution of the simplified transport equations in mixed-dual formulation

M. Barrault, B. Lathuilière, P. Ramet, J. Roman
DOI URL
See all publications

Popular Topics

Fusion H-mat Load balancing Low-rank compression Multigrid Neutron Overlap pastix6 Randomized Sparse

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