Alexandre DENIS

Inria Bordeaux - Sud-Ouest,
Tadaam research team

Alexandre DENIS

INRIA researcher in the Tadaam research team, formerly in the Runtime research team.


  • Email:
  • Phone:
      +33 52457 41 14
  • Postal address:
      INRIA Bordeaux - Sud-ouest
      200 rue de la Vieille Tour
      33405 Talence Cedex
  • PGP public key 0x4f8124db5aabdd3e (or from key server)
      Key fingerprint = 38E8 D953 34A6 7104 65CE  1ECB 4F81 24DB 5AAB DD3E

Research activities

I am working in the field of network communications and middleware for clusters and grids. In particular:

  • MPI and communication progression
  • multithreaded communications, MPI_THREAD_MULTIPLE
  • InfiniBand
  • Intel Xeon Phi


 »  My publications list on the Runtime pages.

 »  My publications list in HAL.



NewMadeleine is the latest incarnation of the Madeleine high performance communication library for clusters. It applies optimization strategy on data flows through dynamic packet scheduling, and is usable on various networks such as Infiniband, Myrinet, or Quadrics. I am the official maintainer of NewMadeleine. It comes with a complete MPI interface called Mad-MPI.

 »  More details are available on the NewMadeleine homepage.


PIOMan is a generic I/O manager, designed to deal with interactions between communication and multi-threading. It guarantees a good level of reactivity, is able to automatically choose between active polling and blocking calls depending on the context, and may offload I/O requests to idle cores when availble to handle multiple requests in parallel and overlap communication and computation. It works with standard pthread or with the Marcel thread scheduler.

 »  More details are available on the PIOMan homepage.


PadicoTM is a component-based high performance communication framework for grid computing. It enables a wide range of middleware systems (MPI, CORBA, Java RMI, ICE, SOAP,...) to use the variety of networks found in grids.

 »  More details are available on the PadicoTM homepage.


I am giving:

  • Master course on OS and middleware design for parallel and distributed systems at the University Bordeaux.
  • Master course on distributed software at ENSEIRB-MATMECA engineering school.

 »  See my teaching page (french).


Participation to projects

Project COOP

I am involved in the COOP project from the ANR.

 »  Homepage of the COOP project.

Project NEGST

I am involved in the France-Japan joint project (JST-CNRS) NEGST project ("NExt Grid Systems and Techniques").

 »  Homepage of the NEGST project.

Sakura Project

I am involved in the Egide-JSPS Sakura project A multicore-enabled framework for communication and I/O in next generation clusters with the University of Tokyo.

Past activites

 » Project LEGO

I was involved in the ANR LEGO project ("League for Efficient Grid Operation").

 » Project ALTA

I was involved in the ARC/ACI ALTA project ("Asynchronous Loss Tolerant Algorithms").

 » Supercomputing

I was involved in the INRIA booth at the Super Computing conference.

  • I was the scientific coordinator of the INRIA booth at the SC|05 conference.
  • I was co-organizing the INRIA booth with Laurent Lefevre at the SC|06 conference.

     »  Ideas for the INRIA booth.