Français Anglais
Accueil Annuaire Plan du site
Accueil > Evenements > Séminaires
Séminaire d'équipe(s) Graphs, ALgorithms and Combinatorics
Expérimentations sur le calcul hautes performances en combinatoire énumérative et algébrique.
Florent Hivert

19 April 2019, 14:30
Salle/Bat : 455/PCRI-N
Contact :

Activités de recherche : Combinatorics

Résumé :
In this talk, I will report on several experiments around large scale enumerations in enumerative and algebraic combinatorics.

I'll describe a methodology used to achieve large speedups in several enumeration problems. Indeed, in many combinatorial structures (permutations, partitions, monomials, young tableaux), the data can be encoded as a small sequence of small integers that can often efficiently be handled by a creative use of processor vector instructions. Through the challenging example of numerical monoids, I will then report on how Cilkplus allows for a extremely fast parallelization of the enumeration. Indeed, we have been able to enumerate sets with more that 10^15 elements on a single multicore machine.

This work was done in collaboration with Jean Fromentin.

Pour en savoir plus :
Séminaires
Demographic reconstruction from paleogenomes of th
Thursday 25 February 2021 - 14:00
Salle : 435 - PCRI-N
Nina Marchi .............................................

A Graph-based Similarity Approach to Classify Recu
Thursday 18 February 2021 - 14:00
Salle : 435 - PCRI-N
Coline Gianfrotta .............................................

"Answer Set Programming for computing constraints-
Thursday 04 February 2021 - 14:00
Salle : 435 - PCRI-N
Maxime Mahout .............................................

"Pandæsim: An Epidemic Spreading Stochastic Simula
Thursday 14 January 2021 - 14:00
Salle : 435 - PCRI-N
Patrick Amar .............................................

Disentangling the role of selection on the evoluti
Friday 02 October 2020 - 17:30
Salle : 455 - PCRI-N
Fanny Pouyet .............................................