APO Team

Head : Serge GRATTON

The APO team (Parallel Algorithms and optimization) works mainly along the following 5 axes:

  • new methods for solving large linear systems and their applications to simulation
  • optimal control and its applications to the design of optimal trajectories
  • global optimization
  • mathematical and computational aspects of artificial intelligence and  processing of large data sets
  • optimization for large problems and data assimilation

The team is also strongly involved in the LabEx CIMI (Laboratory of Excellence). A joint team exists between IRIT and IMT. This is the CASI team focused on scientific computation and numerical simulation.

Since 2014, the APO team and the ALGO team at Cerfacs have also set up a joint laboratory. The objective of this common laboratory is to analyse  and implement  methods to solve problems of interest to Cerfacs, IRIT and their partners. The joint laboratory currently consists of some 20 people, including eight permanent staff from both institutions.

The team is also involved in the 3IA ANITI Institute (Toulouse Artificial and Natural Institute). This project is centred on the  introduction of physical constraints into machine learning algorithms and exploring the associated high-performance computing issues.

Background: The team was created and coordinated by Joseph Noailles. It was then administered by Patrick Amestoy.

skills

numerical linear algebra
local and global optimization
grid computing
parallel algorithms and revolutionary algorithms
high-performance computing (HPC)

personnel of the team

Permanent members
Non-permanent members

publications of the team

International journals articles
National journals articles
Special issues of journal
International conferences articles
Conferences articles without published proceedings
Books Books parts
Thesis and HDR
Reports

contrats of the team

AcronymeTitreResp. scDébut – fin
FSAT 4 HHO anr Solveurs rapides pour des discrétisations robustes en mécanique des fluides Daniel RUIZ
2017 – 2021
SOLHAR
[Contract completed]
autre Solveurs pour architectures hétérogènes utilisant des supports d’exécution Alfredo BUTTARI
2013 – 2017
MACOPA
[Contract completed]
Méthodes Asynchrones pour la Combustion et les Plasmas Atmosphériques Daniel RUIZ
2012 – 2015
BARESAFE
[Contract completed]
Modélisation numérique de systèmes couplés fluide structure multi-échelles: méthodes hybrides avancées pour la réduction des incertitudes sur les limites de stabilité et l’optimisation de la fiabilité des barrières de sureté nucléaire Daniel RUIZ
2011 – 2015
FP3C
[Contract completed]
autre Environnement et programmation pour le calcul post PETAFLOP Alfredo BUTTARI
2010 – 2013
COOP
[Contract completed]
autre Gestion de ressources coopérative multi-niveaux Ronan GUIVARCH
2009 – 2012
AcronymeTitreResp. scDébut – fin
EoCoE-II auropa Energy Oriented Center of Excellence : toward exascale for energy Alfredo BUTTARI
2019 – 2021
INARMERA – ICT
[Contract completed]
Integrating Armenia Into ERA : Information and Communication technologies Michel DAYDé
2012 – 2015
MyPlanet
[Contract completed]
autre Massively Parallel Computations of Combustion and Emission Simulations Patrick AMESTOY
2008 – 2012
AcronymeTitreResp. scDébut – fin
INTRACI – partie région
[Contract completed]
Evaluation des biomarqueurs de la résolution de l’inflammation chez les patients dans des contextes inflammatoires à éthiologie variée et analyse par approche non supervisée des systèmes dynamiques Sandrine MOUYSSET
2017 – 2020
Monday 28 October 2019, 14h00
Bi-Stochastic Scaling of Matrices for Block Structure Detection and Applications
Luce LE GORREC – Team APO, IRIT INP-ENSEEIHT, Salle des thèses
#these
Thursday 6 June 2019, 10h30
ASGART — Cartographie de novo des duplications segmentaires à l’échelle génomique
Franklin DELEHELLE – Team REVA, Team APO, IRIT 37 allées Jules Guesde, Toulouse
#these
Friday 24 November 2017, 9h30
Block Low-Rank multifrontal solvers: complexity, performance, and scalability
Théo MARY – Team APO – IRIT INP-ENSEEIHT, Salle des thèses
#these
Wednesday 14 June 2017, 10h00
Contrôle optimal géométrique et méthodes numériques: application au problème de montée d’un avion
Damien GOUBINAT – Team APO – IRIT INP-ENSEEIHT, Salle des thèses
#these
Friday 4 November 2016, 14h00
Derivative-Free Optimization Methods based on Probabilistic and Deterministic Properties: Complexity Analysis and Numerical Relevance
Clément ROYER – Team APO – IRIT Amphi C002
#these
Friday 11 December 2015, 14h30
Task-based multifrontal QR solver for heterogeneous architectures
Florent LOPEZ – Team APO – IRIT INP-ENSEEIHT, Salle des thèses
#these
Tuesday 27 January 2015, 14h00
Hybridation d’algorithmes évolutionnaires et de méthodes d’intervalles pour l’optimisation de problèmes difficiles
Charlie VANARET – Team APO – IRIT UT3 Paul Sabatier, IRIT, Auditorium J. Herbrand
#these
Thursday 13 November 2014, 14h00
Apprentissage artificiel appliqué à la prévision de trajectoire d’avion
Richard ALLIGIER – Team APO – IRIT ENAC, Salle C16, Toulouse
#these
Friday 17 October 2014, 14h00
Globally convergent evolution strategies with application to an Earth imaging problem in geophysics
Youssef DIOUANE – Team APO – IRIT CERFACS, Salle des séminaires, Toulouse
#these
Wednesday 13 January 2016 – Friday 15 January 2016
Workshop du LabEx CIMI Optimization and Data Assimilation
CERFACS, Toulouse
#congres Know more
Monday 11 January 2016 – Tuesday 12 January 2016
Workshop du LabEx CIMI Parallel In Time Methods
IMT – Bât. 1R3
#congres Know more
Wednesday 28 October 2015 – Friday 30 October 2015
KEy topics in orbit Propagation Applied to Space Situational Awareness
INP-ENSEEIHT, Auditorium
#congres Know more
Monday 11 March 2019, 15h00 – 16h00
SPOT Seminar : High-order multilevel optimization strategies and their application to the training of ANNs
Elisa RICCETTI – Post-doctorante IRIT – Equipe APO INP-ENSEEIHT, Salle des thèses
#seminaire
Monday 11 March 2019, 14h00 – 15h00
SPOT Seminar : Recent results in worst-case evaluation complexity for smooth and non-smooth, exact and inexact, nonconvex optimization
Philippe TOINT – Université de Namur (Belgique) INP-ENSEEIHT, Salle des thèses
#seminaire
Tuesday 8 January 2019, 14h00 – 15h30
Nonconvex optimization with complexity guarantees: a Newton-CG approach
Clément ROYER – Team APO – ENSEEIHT INP-ENSEEIHT, Salle des thèses
#seminaire
Tuesday 20 February 2018, 12h15 – 13h00
Dynamics-based reduction of data assimilation for chaotic models and the role of covariance inflation in reduced-rank filters
Alberto CARRASSI – Nansen Environmental and Remote Sensing Center, Bergen (Norvège) INP-ENSEEIHT, Salle des thèses
#seminaire
Monday 22 May 2017, 15h00 – 16h00
Meeting SPOT : Classification algébrique pour le contrôle optimal en Imagerie à Résonance Magnétique
Thibaut VERRON – Team APO – IRIT (France) INP-ENSEEIHT, Salle des thèses
#seminaire
Monday 22 May 2017, 14h00 – 15h00
Meeting SPOT : Data Analytic UQ cascade for aircraft shape design
Bijan MOHAMMADI – Université de Montpellier INP-ENSEEIHT, Salle des thèses
#seminaire
Wednesday 26 April 2017, 10h30 – 12h00
Aventures dans la jungle des ordres élévés en optimisation
Philippe TOINT – FUNDP Namur, Chaire d’Excellence CIMI (Belgique) IMT, Salle de conférence MIP (1er étage, bât. 1R3)
#seminaire
Wednesday 26 September 2018, 15h00
Scalability of parallel sparse direct solvers: methods, memory and performance
Alfredo BUTTARI – Team APO – IRIT INP-ENSEEIHT, Salle des thèses
#hdr
Thursday 1 June 2017 – Friday 2 June 2017
Journées utilisateurs de MUMPS (MUltifrontal Massively Parallel sparse direct Solver
INRIA, Montbonnot
#journee