Publications

Journals

• W. Nasri, Modeling communication performances in heterogeneous and hierarchical environments, International Journal of Parallel, Emergent and Distributed Systems, to be published, 2009.

• W. Nasri, L. A. Steffenel and D. Trystram, Adaptive Approaches for Efficient Parallel Algorithms on Cluster-based Systems, International Journal of Grid and Utility Computing, Vol. 1, No. 2, 2009.

• W. Nasri, D. Trystram and S. Achour, Adaptive algorithms for the parallelization of the dense matrix multiplication on clusters, International Journal of Computational Science and Engineering, to be published.

• Z. Mahjoub, W. Nasri and D. Trystram, Computing the inverse of a triangular matrix on heterogeneous clusters, Journal of Parallel and Distributed Computing Practices, Special Issue on Algorithms, Models and Tools for High Performance Computing on Heterogeneous Networks, 2007.

• W. Nasri and Z. Mahjoub, Design and Implementation of a General Parallel Divide and Conquer Algorithm for Triangular Matrix Inversion, International Journal of Parallel and Distributed Systems and Networks 5(1), 2002.

• W. Nasri and Z. Mahjoub, Optimal Parallelization of a Recursive Algorithm for Triangular Matrix Inversion on MIMD Computers, Journal of Parallel Computing 27, 2001.

Conferences and Workshops

• K. Fathallah, W. Nasri and L. A. Steffenel, On the Evaluation of OpenMP Memory Access in Multi-core Architectures, In Proceedings of the 4th International Workshop on Automatic Performance Tuning (iWAPT 2009 ), Tokyo (Japan), 2009.

• S. Achour, W. Nasri and L. A. Steffenel, On the use of performance models for adaptive algorithm selection  on heterogeneous clusters, In Proceedings of the 17th Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP 2009), Weimar (Germany), 2009.

• W. Nasri, S. Achour and L. A. Steffenel, Integrating performance models and adaptive approaches for efficient parallel algorithms, In Proceedings of the 3rd International Workshop on Parallel Matrix Algorithms and Applications (PMAA'08), Neuchatel (Switzerland), 2008.

• W. Nasri, O. Tarhouni and N. Slimi, PLP: Towards a Realistic and Accurate Model for Communication Performances on Hierarchical Cluster-based Systems, In Proceedings of the7th International Workshop on Performance Modeling, Evaluation, and Optimization of Ubiquitous Computing and Networked Systems (PMEO UCNS'2008), associated with the IEEE International Parallel and Distributed Processing Symposium (IPDPS'08), Miami (USA), 2008.

• W. Nasri, L. A. Steffenel and D. Trystram, Adaptive Performance Modeling on Hierarchical Grid Computing Environments, In Proceedings of the7th IEEE International Symposium on Cluster Computing and the Grid (CCGrid 2007), Rio de Janeiro (Brazil), 2007.

• W. Nasri, S. Mahjoub and S. Bouguerra, A Methodology for Adaptive Resolution of Numerical Problems on Heterogeneous Hierarchical Clusters, In Proceedings of the First International Conference on Software and Data Technologies (ICSOFT’06), Setubal (Portugal), 2006.

• W. Nasri, H. Hamad and H. Fejjari, A Framework for Adaptive Communication Modeling on Heterogeneous Hierarchical Clusters, In Proceedings of the 5th International Workshop on Algorithms, Models and Tools for Parallel Computing on Heterogeneous Networks (HeteroPar'06), associated with the 2006 IEEE International Conference on Cluster Computing, Barcelone (Spain), 2006.

• W. Nasri and D. Trystram, A poly-algorithmic approach applied for fast matrix multiplication on clusters, In Proceedings of the 5th International Workshop on Parallel and Distributed Scientific and Engineering Computing with Applications, associated with the IEEE International Parallel and Distributed Processing Symposium (IPDPS'04), Santa Fe (USA), 2004..

• W. Nasri, A Poly-Algorithmic Approach Applied for Parallelizing Linear Algebra Algorithms, In Proceedings of the 3rd International Workshop on Parallel Matrix Algorithms and Applications (PMAA'04), Marseille (France), 2004.

• Z. Mahjoub, W. Nasri and D. Trystram, Fast parallel matrix multiplication on clusters, In Proceedings of the 2nd International workshop on Parallel Matrix Algorithms and Applications (PMAA'02), Neuchatel (Switzerland), 2002.

• Z. Mahjoub, W. Nasri and D. Trystram, Parallelization of a divide and conquer algorithm for triangular matrix inversion on heterogeneous platforms, In Proceedings of the Colloque Africain sur la Recherche en Informatique (CARI’2002), Yaoundé (Cameroun), 2002.

• W. Nasri, Parallélisation d’un Algorithme de Produit Matriciel Rapide sur une Grappe de PC, In Proceedings of the 14èmes Rencontres Francophones du Parallélisme (RENPAR’2002), Hammamet (Tunisie), 2002.

• W. Nasri and Z. Mahjoub, Proportional Mapping Data for Parallelizing a Divide and Conquer Triangular Matrix Inversion Algorithm, In Proceedings of the International Conference on Parallel and Distributed Computing and Systems (PDCS’2000), Las Vegas, Nevada (U.S.A.), 2000.

• W. Nasri and Z. Mahjoub, Conception et Analyse d’un Algorithme Parallèle Récursif pour l’Inversion de Matrices Triangulaires Inférieures, In Proceedings of the Ecole d’Automne sur le Calcul Parallèle (ParDi’99), Oujda (Maroc), 1999.

• Z. Mahjoub and W. Nasri, On a Cost Optimal Parallel Algorithm for Triangular Matrix Inversion,  In Proceedings of the International Conference on Parallel and Distributed Computing and Systems (PDCS’97), Washington, D.C. (U.S.A.), 1997.

• Z. Mahjoub and W. Nasri, Vectorization of Strassen-Like Algorithms for Matrix Multiplication and Inversion, In Proceedings of the International Conference on Parallel Processing and Applied Mathematics (PPAM’97), Zakopane (Poland), 1997.