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

19 April 2019, 14h30
Salle/Bat : 455/PCRI-N
Contact :

Activités de recherche : Combinatoire

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
graph algorithms to help molecular construction
Théorie des graphes
Friday 07 June 2019 - 14h30
Salle : 445 - PCRI-N
Stefi Nouleho .............................................

Sur le nombre des (d,k)-polytopes
Combinatoire
Friday 24 May 2019 - 14h30
Salle : 455 - PCRI-N
Rado Rakotonarivo .............................................

Predicting the structure of RNA-binding protein re
Thursday 23 May 2019 - 00h00
Salle : 465 - PCRI-N
François Major .............................................

Enhancing Asynchronous Iterative Linear Solvers Th
Calcul à haute performance
Tuesday 21 May 2019 - 10h30
Salle : 465 - PCRI-N
Masha Sosonkina .............................................

Simulation of the M13 infection in E.coli
Algorithmique distribuée
Friday 10 May 2019 - 14h00
Salle : 465 - PCRI-N
Da-Jung Cho .............................................