Overall Objectives
Scientific Foundations
Application Domains
New Results
Contracts and Grants with Industry
Other Grants and Activities

Section: Other Grants and Activities

National Contracts and Projects

ANR grant: Stochagrid (Scheduling algorithms and stochastic performance models for workflow applications on dynamic Grid platforms), 3 years, ANR-06-BLAN60192-01, 2007-2010

In the second year of the project (2009), we have investigated timed-Petri nets to model the mapping of workflows with stage replication, and we have succeeded in deriving an optimal polynomial algorithm to compute the period in the bounded multi-port model with overlap. Quite interestingly, the period is no longer the bottleneck resource, the critical path becomes more complex. We have extended these results to probabilistic workflows in which execution and communication times follow random variable laws, such as exponential laws. Certain parts of the work was conducted in collaboration with Bruno Gaujal (LIG Grenoble). We have also investigated several multi-criteria algorithms and heuristics, and we hired a post-doctoral student to conduct work on the implementation of robust scheduling algorithms.

The project is entirely conducted within the GRAAL team by A. Benoit and Y. Robert.

ANR grant CICG-05-11: LEGO (League for Efficient Grid Operation), 3 years, 2006-2009

The aim of this project is to provide algorithmic and software solutions for large scale architectures; our focus is on performance issues. The software component provides a flexible programming model where resource management issues and performance optimizations are handled by the implementation. On the other hand, current component technology does not provide adequate data management facilities, needed for large data in widely distributed platforms, and does not deal efficiently with dynamic behaviors. We choose three applications: ocean-atmosphere numerical simulation, cosmological simulation, and sparse matrix solver. We propose to study the following topics: Parallel software component programming; Data sharing model; Network-based data migration solution; Co-scheduling of CPU, data movement and I/O bandwidth; High-perf. network support. The Grid'5000 platform provides the ideal environment for testing and validation of our approaches.

E. Caron is leading the project, which comprises six teams: Graal /LIP (Lyon), PARIS/IRISA (Rennes), RUNTIME/LaBRI (Bordeaux), ENSEEIHT/IRIT (Toulouse), Cerfacs (Toulouse) and CRAL/ENS-Lyon (Lyon). A. Amar, R. Bolze, Y. Caniou, F. Desprez, J.-S. Gay and C. Tedeschi also participate to this project.

The project has ended in June 2009.

ANR grant ANR-06-CIS-010: SOLSTICE (SOlveurs et simulaTIon en Calcul Extrême), 3 years, 2007-2009

The objective of this project is to design and develop high-performance parallel linear solvers that will be efficient to solve complex multi-physics and multi-scale problems of very large size (10 to 100 millions of equations). To demonstrate the impact of our research, the work produced in the project will be integrated in real simulation codes to perform simulations that could not be considered with today's technologies. This project also comprises LaBRI (coordinator), Cerfacs , INPT-IRIT, CEA-CESTA, EADS-CCR, EDF R&D, and CNRM. We are more particularly involved in tasks related to out-of-core factorization and solution, parallelization of the analysis phase of sparse direct solvers, rank detection, hybrid direct-iterative methods and expertise site for sparse linear algebra.

Indranil Chowdhury, Guillaume Joslin, Jean-Yves L'Excellent and Bora Uçar participate to this project.

ANR grant ANR-06-MDCA-009: Gwendia (Grid Workflow Efficient Enactment for Data Intensive Applications), 3 years, 2007-2009

The objective of the Gwendia( ) project is to design and develop workflow management systems for applications involving large amounts of data. It is a multidisciplinary project involving researchers in computer science (including GRAAL) and in life science (medical imaging and drug discovery). Our work consists in designing algorithms for the management of several workflows in distributed and heterogeneous platforms and to validate them within Diet on the Grid'5000 platform.

ANR grant: COOP (Multi Level Cooperative Resource Management), 3 years, ANR-09-COSI-001-01, 2009-2012

The main goals of this project are to set up such a cooperation as general as possible with respect to programming models and resource management systems and to develop algorithms for efficient resource selection. In particular, the project targets the SALOME platform and GRID-TLSE expert-site ( ) as example of programming models, and Marcel/PadicoTM, DIET and XtreemOS as examples of multithread scheduler/communication manager, grid middleware and distributed operating systems.

The project is led by Christian Perez.

ANR JCJC: Clouds@Home (Cloud Computing over Unreliable, Shared Resources), 4 years, ANR-09-JCJC-0056-01, 2009-2012

Recently, a new vision of cloud computing has emerged where the complexity of an IT infrastructure is completely hidden from its users. At the same time, cloud computing platforms provide massive scalability, 99.999% reliability, and speedy performance at relatively low costs for complex applications and services. This project, lead by D. Kondo from INRIA MESCAL investigates the use of cloud computing for large-scale and demanding applications and services over unreliable resources. In particular, we target volunteered resources distributed over the Internet. In this project, G. Fedak leads the Data management task (WP3).

ADTMUMPS, 3 years, 2009-2012

ADTMUMPS is an action of technological development funded by Inria . This project gives support for 24 men x months of young engineer (“ingénieur jeune diplômé”). A permanent engineer from INRIA/SED also works on the project (Maurice Brémond, 30 % on the project). One goal of the project is to improve daily work of MUMPS developers by improving the software engineering aspects, by developing non-regression tests and drivers to experiment the package. This project is in collaboration with ENSEEIHT-IRIT.


ALADDIN is an Inria action of technological development for “A LArge-scale DIstributed and Deployable INfrastructure” which aim is to manage the Grid'5000 experimental platform. Frédéric Desprez is leading this project (with David Margery from Rennes as the Technical Director).


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