Extreme Computing Research Center

Home > People > Research Scientists > Dr. Hatem Ltaief

Hatem Ltaief, Ph.D. Senior Research Scientists
hatem.ltaief@kaust.edu.sa Personal Website

Research Interests

Numerical Linear Algebra, Parallel Numerical Algorithms, GPU Computing, Energy-Aware Algorithms, Performance Optimizations, Applied Mathematics

Selected Publications

Adaptive Optics Simulation for the World's Largest Telescope on Multicore Architectures with Multiple GPUs
H. Ltaief, D. Gratadour, A. Charara, E. Gendron, D. Keyes
International Parallel and Distributed Processing Symposium, (2016)
Dense matrix computations on NUMA architectures with distance-aware work stealing
R. AlOmairy, G. Miranda, H. Ltaief, R. Badia, X. Martorell, J. Labarta, and D. Keyes
Supercomputing Frontiers and Innovations, 2, pp. 49-72, (2015)
High performance multi-GPU SpMV for multi-component PDE-based applications, in EuroPar 2015: Parallel Processing
A. Abdelfattah, H. Ltaief, and D. Keyes, J. L. Tr, S. Hunold, and F. Versaci, eds
vol. 9233 of Lecture Notes in Computer Science, Springer, pp. 601-612, (2015)
KBLAS: An optimized library for dense matrix-vector multiplication on GPU accelerators
A. Abdelfattah, D. E. Keyes, and H. Ltaief
ACM Transactions on Mathematical Software, (2015)
Multicoreoptimized wavefront diamond blocking for optimizing stencil updates
T. Malas, G. Hager, H. Ltaief, H. Stengel, G. Wellein, and D. Keyes
SIAM Journal on Scientific Computing, 37, pp. C439-C464, (2015)
Towards fast reverse time migration kernels using multi-threaded wavefront diamond tiling. Extended abstract for Se...
T. Malas, G. Hager, H. Ltaief, and D. Keyes
Workshop on High Performance Computing for Upstream, (2015)
A novel fast and accurate pseudoanalytical simulation approach for MOAO
E. Gendron, A. Charara, A. Abdelfattah, D. Gratadour, D. Keyes, H. Ltaief, C. Morel, F. Vi...
Proceedings of the SPIE, vol. 9148, (2014)
Achieving numerical accuracy and high performance using recursive tile LU factorization with partial pivoting
J. Dongarra, M. Faverge, H. Ltaief, and P. Luszczek
Concurrency and Computation: Practice and Experience, 26, pp. 1408-1431, (2014)
High performance pseudo-analytical simulation of multi-object adaptive optics over multi-GPU systems, in EuroPar 20...
A. Abdelfattah, E. Gendron, D. Gratadour, D. Keyes, H. Ltaief, A. Sevin, and F. Vidal
vol. 8632 of Lecture Notes in Computer Science, Springer, pp. 704-715, (2014)
Power profiling of Cholesky and QR factorizations on distributed memory systems
G. Bosilca, H. Ltaief, and J. Dongarra
Computer Science - Research and Development, 29, pp. 139-147, (2014)

Education Profile

Engineering Degree in Modelization and Computational Science, Polytech Lyon, France (2003).
MSc in Applied Mathematics, University of Houston, USA (2004).
PhD in Computer Science, University of Houston, USA (2008).

Professional Profile

Research Assistant, Modelization and Computational Science Lab, Department of Computer Science, University of Houston (2003-2007).
Research Scientist, Innovative Computing Laboratory, Electrical Engineering and Computer Science Department, University of Tennessee, Knoxville (2008-2010).
Computational Scientist, Supercomputing Laboratory, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia (2011-2013).
Senior Research Scientist, Extreme Computing Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia (2014-Present).

Scientific and Professional Memberships

ACM/SIAM Member

Awards

Master Fellowship Award from the French Government (2003).
Best Paper Award at the ACS/IEEE International Conference on Computer Systems and Applications (2011).
NVIDIA CUDA Research Center (2012).
Intel Parallel Computing Center (2015).

KAUST Affiliations

Extreme Computing Research Center
Division of Computer, Electrical and Mathematical Sciences and Engineering