Dr. Eng. Didier El Baz (HDR)

Head and founder of the Distributed Computing and Asynchronism team (CDA)
room: E28
7, avenue du Colonel Roche
31077, Toulouse Cedex 4
tel: 33 5 61 33 63 03
fax: 33 5 61 33 64 11
E-mail address:

Co-head of the Laboratory of Information Security of Cyber-physical Systems
Saint-Petersburg National Research University of Information Technologies, Mechanics and Optics
ITMO University Kronverksky prospect 49, St Petersburg 197101 Russian Federation

Eng. degree in Electrical Engineering INSA Toulouse, 1981.
Dr. Eng. degree in Control Theory, INSA Toulouse, 1984.
MIT visiting scientist (INRIA grant): march 1984-february 1985 (LIDS);
   MIT report P-1417 (SIAM J. on Control and Optimization 1987).
   Special Summer Program in Data Communication Networks (MIT, 1984).
CNRS research scientist (LAAS-CNRS) since 1985.
H.D.R. INP Toulouse, 1998.
NVIDIA Academic Partnership, October 2010.
NVIDIA Corporation support, July 2014.
Member IEEE, Euromicro.

Recent projects:

  1. Partner of Project ANR PSIROB: Smart-Surface, ANR 06 ROBO 0009 (Femto-ST, InESS, LAAS-CNRS, LIFC, LIMMS). 2007 - 2010.
  2. Coordinator of Project ANR CIS CIP, ANR-07-CIS7-011(EMD, IRIT-ENSEEIHT, LAAS-CNRS, MIS, LIFC), 2008-2011.
  3. NVIDIA Academic Partnership and Support, Octobre 2010, September 2014.
  4. Partner of Project ANR: Smart-Blocks, ANR-2011-BS03-005 (Femto-ST, LAAS-CNRS, LIMMS), 2011 - 2015.
  5. CIFRE funding R.Tech: 2013-2016.

Organization of research:

  Cofounder of the Working Group Knapsack and Optimization, KSO, of ROADEF.


L.I.D.S., M.I.T. (U.S.A.), Professor Dimitri P. Bertsekas, 1984-1985.

P.A.R.C., Loughborough University of Technology (G.B.), Professor David J. Evans, 1990-1992.

I.A.C.S., University of Wuppertal (Ger), Professor Andreas Frommer, 2005-2006.

NICTA, University of Sidney (Aus), Professor Guillaume Jourjon, 2010-2011.

University of Picardie (France), Professor Mhand Hifi, Toufik Saadi, 2008-2016.

Femto-st (Montbeliard) : Professor Julien Bourgeois, 2008-2016.

University of Nuevo Leon, Monterrey (Mexico), Professor Vincent Boyer, 2007-2018.

University of Science and Technology, Beijing (China) Professor Huansheng Ning. International Collaboration Bilatéral Contrat;
on IOT, cyberphysical systems and distributed systems, December 2, 2013-2018.

Saint-Petersburg National Research University of Information Technologies, Mechanics and Optics
ITMO University
Russian Federation
Co-head of the Laboratory of Information Security of Cyber-physical Systems, 2017-2018.

CERIST, Algiers (Algeria) PHP Tassili, Professor Ahcène Bendjoudi
Project: Algorithms for big graphs on distributed memory architectures,
Application to green city, 2018.

Recent editorial activities:

Steering Committees and Award Comittees:




Publications : 

   list of publications,

h index: 19, i10 index: 29, papers quoted 548 times since 2012 (source: Google Scholar), g index 29.

h index Scopus: 15,

Recent Keynote papers

  • PDP 2017, St Petersburg Russia, March 6-8, 2017; Challenges in Computing Accelerators and the Internet of Things.
  • ParCo 2017, Bologne Italy, September 12-15, 2017; High Performance Issues Related to the Internet of Thing and Smart Earth.
  • Research Activities (selected papers)

      Computer Science    
        Parallel computing, distributed computing
          Peer to peer computing:
            (PDP 2013, IEEE CSE 2012, Grand Colloque STIC2012, IPDPSW 2011, IPDPSW 2011, HotP2P 2010, PDP2010,
            GENI Engineering Conference Duke U. 2010, STIC 2010, RenPar 2009, Ter@tec 09, PDP 2005).
          GPU computing:
           (COMPUTERS & Operations Research 2012, IPDPS 2013, IPDPS 2012, PDP2012, HPCC2011, PDP2011, IPDPSW 2011,
            ROADEF 2010a , ROADEF 2010b).
          Load balancing:
           (PDP 2006, JPDC 2005, Rapport LAAS 04554, PARCO 2001).
          Distributed Computing
           (MECHATRONICS 2012 , iThings 2013, dMEMS 2011).
          Performance Prediction :
              (HPCC 2012, HOTP2P 2011)
          Asynchronous parallel or distributed iterative algorithms, asynchronous iterations with order intervals:
            (HDR 98, slides, PhD thesis).
             Design, mathematical models, convergence study:
               (Comput Appl. Math. 2005MOC 1998, JPDC 1996, PARCO 1993,
               SIAM J. Numeric. Anal. 1990, SIAM J. Control and Optimization 1987).
             Stopping criteria, distributed convergence detection, termination:
               (JCAM 2008, GEI 2005, INT. MATH. Journ. 2002, JSS 2002, JPDC 1996, PAA 1996,
                Int. Conf. On Parall. And Distrib. Comput. Syst. 1996).
             Round off errors study:
              ( I.M.A. Journ Numeric. Anal. 2005, ETNA 2002).
             Implementation:  IBM SP, Cray T3E, SMP, clusters:
               (JPDC 2007, PDP 2007, PDP 2003, PDPTA 2000, Calc. Parall. 1998, PARCO 1997, Calc. Parall. 1996).
      Applied Mathematics and Optimal Control
         Integer programming
           Knapsack problems:
              Sequential methods, heuristics, exact methods, constraint rotation.
                Multidimensional knapsack problem (EJIE 2010, EJIE 2009, EJOR 2009 , MOSIM08, ROADEF 2008)..
                Knapsack sharing problem (CIE2011, CIE39).
                Multiple knapsack problem (IJMOR2012, ROADEF 2010c).
                Problems with equality constraints: (ROADEF 2005).
              Parallel methods (iThings 2013, PDP 2006, JPDC 2005, PARCO 2001).          
         Nonlinear optimization
           Network flow problems
              Relaxation methods: (SIAM J. Control and Optimization 1987).
              Gradient type methods: (JPDC 1996, COAP 1996).
              Newton multi splitting methods:
              Optimal routing: (Parall. Comput. 1992, IFIP SMO 1991).
         Control theory: (JSS 2002).
         Boundary value problems
              Nonlinear diffusion problems: (Numer. Alg. 2003, MOC 1998, 8-th Int. Col. Diff. Equ. 1997).
              Convection-diffusion problems: (SC09, JPDC 2007, PDP 2003).
              Obstacle problem: (IEEE CSE 2012, IPDPSW 2011, HotP2P 2011, HotP2P 2010, Calculateurs Par. 2001).
              Hamilton-Jacobi-Bellman problem: (MOC 1998).
         Markov systems: (NSMC 1999, CDC 1994).
         State acquisition and pattern recognition: (Mechatronics 2012 , dMEMS 2010).

    Some Ph.D. students:

    L. Zhu, Distributed autonomous robots, 2018.
    B. Plazolles, Monte Carlo simulation, GPU Computing, Intel Xeon Phi, 2017
    M. E. Lalami: combinatorial optimisation, 2012, GPU computing (thesis)
    T. T. Nguyen: P2P HPC computing, 2011, (thesis)
    V. Boyer: integer programming, 2007, (thesis).
    M. Jarraya:  parallel computing, 2000, (thesis, slides).
    D. Gazen: parallel computing, 1998, (thesis).


    University of Sciences and Technologies Houari Boumediene, Algiers Algéria, lectures: Introduction to Parallel Computing, 2016.
    Sichuan University, Chengdu China, 16 lectures: Introduction to High Performance Computing, 2016.
    University of Sciences and Technology, Beijing China, 16 lectures: Introduction to High Performance Computing, 2015-2017
    and 16 lectures: Introduction to Distributed Systems, 2017.
    China University of Geosciences Beijing, 16 lectures: Introduction to High Performance Computing, 2017.




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