Publications

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Sparse supernodal solver using block low-rank compression: Design, performance and analysis. International Journal of Computational Science and Engineering, Inderscience, 2018, 27, pp.255 - 270. ⟨10.1016/J.JOCS.2018.06.007⟩. ⟨hal-01824275⟩

Grégoire Pichon, Mathieu Faverge, Pierre Ramet, Jean Roman. Reordering Strategy for Blocking Optimization in Sparse Linear Solvers. SIAM Journal on Matrix Analysis and Applications, Society for Industrial and Applied Mathematics, 2017, SIAM Journal on Matrix Analysis and Applications, 38 (1), pp.226 - 248. ⟨10.1137/16M1062454⟩. ⟨hal-01485507v2⟩

Esragul Korkmaz, Mathieu Faverge, Grégoire Pichon, Pierre Ramet. Deciding Non-Compressible Blocks in Sparse Direct Solvers using Incomplete Factorization. HiPC 2021 - 28th IEEE International Conference on High Performance Computing, Data, and Analytics, Dec 2021, Bangalore, India. pp.1-10. ⟨hal-03361299⟩

Rocío Carratalá-Sáez, Mathieu Faverge, Grégoire Pichon, Guillaume Sylvand, Enrique Quintana-Ortí. Tiled Algorithms for Efficient Task-Parallel H-Matrix Solvers. PDSEC 2020 - 21st IEEE International Workshop on Parallel and Distributed Scientific and Engineering Computing, May 2020, News Orleans, United States. pp.1-10. ⟨hal-02513433⟩

Rocío Carratalá-Sáez, Mathieu Faverge, Grégoire Pichon, Enrique Salvador Quintana-Ortí, Guillaume Sylvand. Exploiting Generic Tiled Algorithms Toward Scalable H-Matrices Factorizations on Top of Runtime Systems. SIAM PP20 - SIAM Conference on Parallel Processing for Scientific Computing, Feb 2020, Seattle, United States. ⟨hal-03149953⟩

Changjiang Gou, Ali Al Zoobi, Anne Benoit, Mathieu Faverge, Loris Marchal, et al.. Improving mapping for sparse direct solvers: A trade-off between data locality and load balancing. EuroPar 2020 - 26th International European Conference on Parallel and Distributed Computing, Aug 2020, Warsaw / Virtual, Poland. pp.1-16. ⟨hal-02973315⟩

Grégoire Pichon, Mathieu Faverge, Pierre Ramet. Recent Developments Around the Block Low-Rank PaStiX Solver. PP 2020 - SIAM Conference on Parallel Processing for Scientific Computing, Feb 2020, Seattle, United States. ⟨hal-03140189⟩

Mathieu Faverge, Grégoire Pichon, Pierre Ramet. Exploiting Parameterized Task-graph in Sparse Direct Solvers. SIAM Conference on Computational Science and Engineering (CSE19), Feb 2019, Spokane, United States. ⟨hal-01956963⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Block Low-rank Algebraic Clustering for Sparse Direct Solvers. SIAM Conference on Computational Science and Engineering (CSE19), Feb 2019, Spokane, United States. ⟨hal-01956962⟩

Esragul Korkmaz, Mathieu Faverge, Grégoire Pichon, Pierre Ramet. Rank Revealing QR Methods for Sparse Block Low Rank Solvers. Sparse Days 2019, Jul 2019, Toulouse, France. ⟨hal-02326070⟩

Esragul Korkmaz, Mathieu Faverge, Grégoire Pichon, Pierre Ramet. Rank Revealing QR Methods for Sparse Block Low Rank Solvers. COMPAS 2019 - Conférence d'informatique en Parallélisme, Architecture et Système, Jun 2019, Anglet, France. ⟨hal-02326084⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Utilisation de la compression Block Low-Rank pour accélérer un solveur direct creux supernodal. COMPAS 2018 - Conférence d'informatique en Parallélisme, Architecture et Système, Jul 2018, Toulouse, France. ⟨hal-01956959⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Supernodes ordering to enhance Block Low-Rank compression in sparse direct solvers. PMAA 2018 - 10th International Workshop on Parallel Matrix Algorithms and Applications, Jun 2018, Zurich, Switzerland. ⟨hal-01956960⟩

Grégoire Pichon. Utilisation de la compression Block Low-Rank pour accélérer un solveur direct creux supernodal. Conférence d’informatique en Parallélisme, Architecture et Système (ComPAS'17), Jun 2017, Sophia Antipolis, France. ⟨hal-01585660⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Sparse Supernodal Solver Using Block Low-Rank Compression. 18th IEEE International Workshop on Parallel and Distributed Scientific and Engineering Computing (PDSEC 2017), Jun 2017, Orlando, United States. ⟨hal-01502215⟩

Grégoire Pichon, Mathieu Faverge, Pierre Ramet. Exploiting Modern Manycore Architecture in Sparse Direct Solver with Runtime Systems. SIAM Conference on Computation Science and Engineering (CSE'17), Feb 2017, Atlanta, United States. ⟨hal-01421383⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Sparse Supernodal Solver exploiting Low-Rankness Property. Sparse Days 2017, Sep 2017, Toulouse, France. ⟨hal-01585622⟩

Grégoire Pichon, Mathieu Faverge, Pierre Ramet, Jean Roman. Impact of Blocking Strategies for Sparse Direct Solvers on Top of Generic Runtimes. SIAM Conference on Computation Science and Engineering (CSE'17), Feb 2017, Atlanta, United States. ⟨hal-01421384⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Sparse Supernodal Solver Using Hierarchical Compression over Runtime System. SIAM Conference on Computation Science and Engineering (CSE'17), Feb 2017, Atlanta, United States. ⟨hal-01421379⟩

Grégoire Pichon, Mathieu Faverge, Pierre Ramet, Jean Roman. Impact of Blocking Strategies for Sparse Direct Solvers on Top of Generic Runtimes. SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2016), Apr 2016, Paris, France. ⟨hal-01251808⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Exploiting H-Matrices in Sparse Direct Solvers. SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2016), Apr 2016, Paris, France. ⟨hal-01251812⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Sparse Supernodal Solver Using Hierarchical Compression. Workshop on Fast Direct Solvers, Nov 2016, Purdue, United States. ⟨hal-01421368⟩

Mathieu Faverge, Grégoire Pichon, Pierre Ramet. Exploiting Kepler architecture in sparse direct solver with runtime systems. 9th International Workshop on Parallel Matrix Algorithms and Applications (PMAA'2016), Jul 2016, Bordeaux, France. ⟨hal-01421372⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. On the use of low rank approximations for sparse direct solvers. SIAM Annual Meeting (AN'16), Jul 2016, Boston, United States. ⟨hal-01421376⟩

Grégoire Pichon, Azzam Haidar, Mathieu Faverge, Jakub Kurzak. Divide and Conquer Symmetric Tridiagonal Eigensolver for Multicore Architectures. IEEE International Parallel & Distributed Processing Symposium (IPDPS 2015), May 2015, Hyderabad, India. ⟨hal-01078356v3⟩

Mathieu Faverge, Grégoire Pichon, Pierre Ramet, Jean Roman. Blocking strategy optimizations for sparse direct linear solver on heterogeneous architectures. Sparse Days, Jun 2015, Saint Girons, France. ⟨hal-01187881⟩

Mathieu Faverge, Grégoire Pichon, Pierre Ramet, Jean Roman. On the use of H-Matrix Arithmetic in PaStiX: a Preliminary Study. Workshop on Fast Direct Solvers, Jun 2015, Toulouse, France. ⟨hal-01187882⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Esragul Korkmaz, Pierre Ramet, et al.. Sparse supernodal solver using block low-rank compression: Design, performance and analysis. JOREK development meeting, Nov 2019, Cadarache, France. ⟨hal-02326407⟩

Grégoire Pichon, Mathieu Faverge, Pierre Ramet, Jean Roman. Utilisation de la compression low-rank pour réduire la complexité du solveur PaStiX. JCAD 2018 - Journées Calcul et Données, Oct 2018, Lyon, France. ⟨hal-01956928⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Stéphane Lanteri, Pierre Ramet, et al.. Sparse supernodal solver with low-rank compression for solving the frequency-domain Maxwell equations discretized by a high order HDG method. Journées jeunes chercheur-e-s - Résolution de problèmes d’ondes harmoniques de grande taille, Nov 2017, PARIS, France. pp.1-55, 2017. ⟨hal-01660653⟩

Esragul Korkmaz, Mathieu Faverge, Grégoire Pichon, Pierre Ramet. Deciding Non-Compressible Blocks in Sparse Direct Solvers using Incomplete Factorization. [Research Report] RR-9396, Inria Bordeaux - Sud Ouest. 2021, pp.16. ⟨hal-03152932v2⟩

Rocío Carratalá-Sáez, Mathieu Faverge, Grégoire Pichon, Guillaume Sylvand, Enrique Quintana-Ortí. Tiled Algorithms for Efficient Task-Parallel H-Matrix Solvers. [Research Report] RR-9327, Inria. 2020. ⟨hal-02489269⟩

Loris Marchal, Thibault Marette, Grégoire Pichon, Frédéric Vivien. Trading Performance for Memory in Sparse Direct Solvers using Low-rank Compression. [Research Report] RR-9368, INRIA. 2020. ⟨hal-02976233⟩

Changjiang Gou, Ali Al Zoobi, Anne Benoit, Mathieu Faverge, Loris Marchal, et al.. Improving mapping for sparse direct solvers: A trade-off between data locality and load balancing. [Research Report] RR-9328, Inria Rhône-Alpes. 2020, pp.21. ⟨hal-02491495⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Supernodes ordering to enhance Block Low-Rank compression in sparse direct solvers. [Research Report] RR-9238, Inria Bordeaux Sud-Ouest. 2018, pp.1-31. ⟨hal-01961675⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Sparse Supernodal Solver Using Block Low-Rank Compression. [Research Report] RR-9022, Inria Bordeaux Sud-Ouest. 2017, pp.24. ⟨hal-01450732v3⟩

Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Sparse Supernodal Solver Using Block Low-Rank Compression: design, performance and analysis. [Research Report] RR-9130, Inria Bordeaux Sud-Ouest. 2017, pp.1-32. ⟨hal-01660665⟩

Grégoire Pichon, Mathieu Faverge, Pierre Ramet, Jean Roman. Reordering strategy for blocking optimization in sparse linear solvers. [Research Report] RR-8860, Inria Bordeaux Sud-Ouest; LaBRI - Laboratoire Bordelais de Recherche en Informatique; Bordeaux INP; Université de Bordeaux. 2016, pp.26. ⟨hal-01276746v2⟩