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Hatem Ltaief
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Publications
- 2024
- [i16]Qilong Pan, Sameh Abdulah, Marc G. Genton, David E. Keyes, Hatem Ltaief, Ying Sun:
GPU-Accelerated Vecchia Approximations of Gaussian Processes for Geospatial Data using Batched Matrix Computations. CoRR abs/2403.07412 (2024) - 2023
- [j39]Long Qu, Rached Abdelkhalak, Hatem Ltaief, Issam Said, David E. Keyes:
Exploiting temporal data reuse and asynchrony in the reverse time migration. Int. J. High Perform. Comput. Appl. 37(2): 132-150 (2023) - [j38]Sagnik Mondal, Sameh Abdulah, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
Tile low-rank approximations of non-Gaussian space and space-time Tukey g-and-h random field likelihoods and predictions on large-scale systems. J. Parallel Distributed Comput. 180: 104715 (2023) - [j37]Gengjie Jia, Yu Li, Xue Zhong, Kanix Wang, Milton Pividori, Rabab Alomairy, Aniello Esposito, Hatem Ltaief, Chikashi Terao, Masato Akiyama, Koichi Matsuda, David E. Keyes, Hae Kyung Im, Takashi Gojobori, Yoichiro Kamatani, Michiaki Kubo, Nancy J. Cox, James A. Evans, Xin Gao, Andrey Rzhetsky:
The high-dimensional space of human diseases built from diagnosis records and mapped to genetic loci. Nat. Comput. Sci. 3(5): 403-417 (2023) - [j36]Gengjie Jia, Yu Li, Xue Zhong, Kanix Wang, Milton Pividori, Rabab Alomairy, Aniello Esposito, Hatem Ltaief, Chikashi Terao, Masato Akiyama, Koichi Matsuda, David E. Keyes, Hae Kyung Im, Takashi Gojobori, Yoichiro Kamatani, Michiaki Kubo, Nancy J. Cox, James A. Evans, Xin Gao, Andrey Rzhetsky:
Author Correction: The high-dimensional space of human diseases built from diagnosis records and mapped to genetic loci. Nat. Comput. Sci. 3(7): 658 (2023) - [c60]Qinglei Cao, Sameh Abdulah, Hatem Ltaief, Marc G. Genton, David E. Keyes, George Bosilca:
Reducing Data Motion and Energy Consumption of Geospatial Modeling Applications Using Automated Precision Conversion. CLUSTER 2023: 330-342 - [c59]Adel Dabah, Zouheir Rezki, Hatem Ltaief, David E. Keyes, Mohamed-Slim Alouini:
Efficient GPU-based Large MIMO Detection Algorithm for Next-Generation Communication Systems. GLOBECOM 2023: 3372-3377 - [c57]Hatem Ltaief, Yuxi Hong, Leighton Wilson, Mathias Jacquelin, Matteo Ravasi, David Elliot Keyes:
Scaling the "Memory Wall" for Multi-Dimensional Seismic Processing with Algebraic Compression on Cerebras CS-2 Systems. SC 2023: 6:1-6:12 - [c56]David E. Keyes, Hatem Ltaief, Yuji Nakatsukasa, Dalal Sukkari:
High-Performance SVD Partial Spectrum Computation. SC 2023: 74:1-74:12 - [c55]Hatem Ltaief, Yuxi Hong, Adel Dabah, Rabab Alomairy, Sameh Abdulah, Chris Goreczny, Pawel Gepner, Matteo Ravasi, Damien Gratadour, David E. Keyes:
Steering Customized AI Architectures for HPC Scientific Applications. ISC 2023: 125-143 - [c54]Adel Dabah, Hatem Ltaief, Zouheir Rezki, Mohamed-Slim Alouini, David E. Keyes:
GPU-Based Low-Precision Detection Approach for Massive MIMO Systems. ISC 2023: 144-163 - [i15]Sameh Abdulah, Jorge Ejarque, Omar Marzouk, Hatem Ltaief, Ying Sun, Marc G. Genton, Rosa M. Badia, David E. Keyes:
Portability and Scalability Evaluation of Large-Scale Statistical Modeling and Prediction Software through HPC-Ready Containers. CoRR abs/2312.07748 (2023) - 2022
- [j35]Hatem Ltaief, Marc G. Genton, Damien Gratadour, David E. Keyes, Matteo Ravasi:
Responsibly Reckless Matrix Algorithms for HPC Scientific Applications. Comput. Sci. Eng. 24(4): 12-22 (2022) - [j34]Rabab Alomairy, Wael Bader, Hatem Ltaief, Youssef Mesri, David E. Keyes:
High-performance 3D Unstructured Mesh Deformation Using Rank Structured Matrix Computations. ACM Trans. Parallel Comput. 9(1): 4:1-4:23 (2022) - [j33]Sameh Abdulah, Qinglei Cao, Yu Pei, George Bosilca, Jack J. Dongarra, Marc G. Genton, David E. Keyes, Hatem Ltaief, Ying Sun:
Accelerating Geostatistical Modeling and Prediction With Mixed-Precision Computations: A High-Productivity Approach With PaRSEC. IEEE Trans. Parallel Distributed Syst. 33(4): 964-976 (2022) - [c53]Ronald Kriemann, Hatem Ltaief, Minh Bau Luong, Francisco E. Hernández Pérez, Hong G. Im, David E. Keyes:
High-Performance Spatial Data Compression for Scientific Applications. Euro-Par 2022: 403-418 - [c52]Sagnik Mondal, Sameh Abdulah, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
Parallel Approximations of the Tukey g-and-h Likelihoods and Predictions for Non-Gaussian Geostatistics. IPDPS 2022: 379-389 - [c51]Qinglei Cao, Rabab Alomairy, Yu Pei, George Bosilca, Hatem Ltaief, David E. Keyes, Jack J. Dongarra:
A Framework to Exploit Data Sparsity in Tile Low-Rank Cholesky Factorization. IPDPS 2022: 414-424 - [c50]Mary Lai O. Salvaña, Sameh Abdulah, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
Parallel space-time likelihood optimization for air pollution prediction on large-scale systems. PASC 2022: 17:1-17:11 - [c49]Qinglei Cao, Sameh Abdulah, Rabab Alomairy, Yu Pei, Pratik Nag, George Bosilca, Jack J. Dongarra, Marc G. Genton, David E. Keyes, Hatem Ltaief, Ying Sun:
Reshaping Geostatistical Modeling and Prediction for Extreme-Scale Environmental Applications. SC 2022: 2:1-2:12 - 2021
- [j32]Yuxi Hong, Hatem Ltaief, Matteo Ravasi, Laurent Gatineau, David E. Keyes:
Accelerating Seismic Redatuming Using Tile Low-Rank Approximations on NEC SX-Aurora TSUBASA. Supercomput. Front. Innov. 8(2): 6-26 (2021) - [j31]Mary Lai O. Salvaña, Sameh Abdulah, Huang Huang, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
High Performance Multivariate Geospatial Statistics on Manycore Systems. IEEE Trans. Parallel Distributed Syst. 32(11): 2719-2733 (2021) - [c48]Yuxi Hong, El Houcine Bergou, Nicolas Doucet, Hao Zhang, Jesse Cranney, Hatem Ltaief, Damien Gratadour, François Rigaut, David E. Keyes:
Outsmarting the Atmospheric Turbulence for Ground-Based Telescopes Using the Stochastic Levenberg-Marquardt Method. Euro-Par 2021: 565-579 - [c47]Qinglei Cao, Yu Pei, Kadir Akbudak, George Bosilca, Hatem Ltaief, David E. Keyes, Jack J. Dongarra:
Leveraging PaRSEC Runtime Support to Tackle Challenging 3D Data-Sparse Matrix Problems. IPDPS 2021: 79-89 - [c46]Hatem Ltaief, Jesse Cranney, Damien Gratadour, Yuxi Hong, Laurent Gatineau, David E. Keyes:
Meeting the real-time challenges of ground-based telescopes using low-rank matrix computations. SC 2021: 29 - [i14]David E. Keyes, Hatem Ltaief, Yuji Nakatsukasa, Dalal Sukkari:
High-Performance Partial Spectrum Computation for Symmetric eigenvalue problems and the SVD. CoRR abs/2104.14186 (2021) - 2020
- [j30]Kadir Akbudak, Hatem Ltaief, Étienne Vincent, Rached Abdelkhalak, Thierry Tonellot, David E. Keyes:
Asynchronous computations for solving the acoustic wave propagation equation. Int. J. High Perform. Comput. Appl. 34(4) (2020) - [j29]Rabab Alomairy, Hatem Ltaief, Mustafa Abduljabbar, David E. Keyes:
Abstraction Layer For Standardizing APIs of Task-Based Engines. IEEE Trans. Parallel Distributed Syst. 31(11): 2482-2495 (2020) - [c45]Tariq Alturkestani, Hatem Ltaief, David E. Keyes:
Maximizing I/O Bandwidth for Reverse Time Migration on Heterogeneous Large-Scale Systems. Euro-Par 2020: 263-278 - [c44]Qinglei Cao, Yu Pei, Kadir Akbudak, Aleksandr Mikhalev, George Bosilca, Hatem Ltaief, David E. Keyes, Jack J. Dongarra:
Extreme-Scale Task-Based Cholesky Factorization Toward Climate and Weather Prediction Applications. PASC 2020: 2:1-2:11 - [c43]Noha Al-Harthi, Rabab Alomairy, Kadir Akbudak, Rui Chen, Hatem Ltaief, Hakan Bagci, David E. Keyes:
Solving Acoustic Boundary Integral Equations Using High Performance Tile Low-Rank LU Factorization. ISC 2020: 209-229 - [i13]Adel Dabah, Hatem Ltaief, Zouheir Rezki, Mohamed Amine Arfaoui, Mohamed-Slim Alouini, David E. Keyes:
Performance / Complexity Trade-offs of the Sphere Decoder Algorithm for Massive MIMO Systems. CoRR abs/2002.09561 (2020) - [i12]Sameh Abdulah, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
Geostatistical Modeling and Prediction Using Mixed-Precision Tile Cholesky Factorization. CoRR abs/2003.05324 (2020) - [i11]Mary Lai O. Salvaña, Sameh Abdulah, Huang Huang, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
High Performance Multivariate Spatial Modeling for Geostatistical Data on Manycore Systems. CoRR abs/2008.07437 (2020) - 2019
- [j28]Ali Charara, David E. Keyes, Hatem Ltaief:
Batched Triangular Dense Linear Algebra Kernels for Very Small Matrix Sizes on GPUs. ACM Trans. Math. Softw. 45(2): 15:1-15:28 (2019) - [j27]Dalal Sukkari, Hatem Ltaief, Aniello Esposito, David E. Keyes:
A QDWH-based SVD Software Framework on Distributed-memory Manycore Systems. ACM Trans. Math. Softw. 45(2): 18:1-18:21 (2019) - [j26]Hatem Ltaief, Dalal Sukkari, Aniello Esposito, Yuji Nakatsukasa, David E. Keyes:
Massively Parallel Polar Decomposition on Distributed-memory Systems. ACM Trans. Parallel Comput. 6(1): 4:1-4:15 (2019) - [c42]Amani AlOnazi, Hatem Ltaief, David E. Keyes, Issam Said, Samuel Thibault:
Asynchronous Task-Based Execution of the Reverse Time Migration for the Oil and Gas Industry. CLUSTER 2019: 1-11 - [c41]Dalal Sukkari, Hatem Ltaief, David E. Keyes, Mathieu Faverge:
Leveraging Task-Based Polar Decomposition Using PARSEC on Massively Parallel Systems. CLUSTER 2019: 1-12 - [c40]Sameh Abdulah, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
Geostatistical Modeling and Prediction Using Mixed Precision Tile Cholesky Factorization. HiPC 2019: 152-162 - [c39]Tariq Alturkestani, Thierry Tonellot, Hatem Ltaief, Rached Abdelkhalak, Étienne Vincent, David E. Keyes:
MLBS: Transparent Data Caching in Hierarchical Storage for Out-of-Core HPC Applications. HiPC 2019: 312-322 - [c38]Qinglei Cao, Yu Pei, Thomas Hérault, Kadir Akbudak, Aleksandr Mikhalev, George Bosilca, Hatem Ltaief, David E. Keyes, Jack J. Dongarra:
Performance Analysis of Tile Low-Rank Cholesky Factorization Using PaRSEC Instrumentation Tools. ProTools@SC 2019: 25-32 - [c37]Nicolas Doucet, Hatem Ltaief, Damien Gratadour, David E. Keyes:
Mixed-Precision Tomographic Reconstructor Computations on Hardware Accelerators. IA3@SC 2019: 31-38 - [i10]Sameh Abdulah, Yuxiao Li, Jian Cao, Hatem Ltaief, David E. Keyes, Marc G. Genton, Ying Sun:
ExaGeoStatR: A Package for Large-Scale Geostatistics in R. CoRR abs/1908.06936 (2019) - 2018
- [j25]Wajih Halim Boukaram, George Turkiyyah, Hatem Ltaief, David E. Keyes:
Batched QR and SVD algorithms on GPUs with applications in hierarchical matrix compression. Parallel Comput. 74: 19-33 (2018) - [j24]Gustavo Chávez, George Turkiyyah, Stefano Zampini, Hatem Ltaief, David E. Keyes:
Accelerated Cyclic Reduction: A distributed-memory fast solver for structured linear systems. Parallel Comput. 74: 65-83 (2018) - [j23]Tareq M. Malas, Georg Hager, Hatem Ltaief, David E. Keyes:
Multidimensional Intratile Parallelization for Memory-Starved Stencil Computations. ACM Trans. Parallel Comput. 4(3): 12:1-12:32 (2018) - [j22]Dalal Sukkari, Hatem Ltaief, Mathieu Faverge, David E. Keyes:
Asynchronous Task-Based Polar Decomposition on Single Node Manycore Architectures. IEEE Trans. Parallel Distributed Syst. 29(2): 312-323 (2018) - [j21]Sameh Abdulah, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
ExaGeoStat: A High Performance Unified Software for Geostatistics on Manycore Systems. IEEE Trans. Parallel Distributed Syst. 29(12): 2771-2784 (2018) - [c36]Sameh Abdulah, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
Parallel Approximation of the Maximum Likelihood Estimation for the Prediction of Large-Scale Geostatistics Simulations. CLUSTER 2018: 98-108 - [c35]Kadir Akbudak, Hatem Ltaief, Aleksandr Mikhalev, Ali Charara, Aniello Esposito, David E. Keyes:
Exploiting Data Sparsity for Large-Scale Matrix Computations. Euro-Par 2018: 721-734 - [c34]Ali Charara, David E. Keyes, Hatem Ltaief:
Tile Low-Rank GEMM Using Batched Operations on GPUs. Euro-Par 2018: 811-825 - [c33]Hatem Ltaief, Ali Charara, Damien Gratadour, Nicolas Doucet, Bilel Hadri, Eric Gendron, Saber Feki, David E. Keyes:
Real-Time Massively Distributed Multi-object Adaptive Optics Simulations for the European Extremely Large Telescope. IPDPS 2018: 75-84 - [c32]Hatem Ltaief, Dalal Sukkari, Oliver Guyon, David E. Keyes:
Extreme Computing for Extreme Adaptive Optics: The Key to Finding Life Outside our Solar System. PASC 2018: 1:1-1:10 - [i9]Sameh Abdulah, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
Tile Low-Rank Approximation of Large-Scale Maximum Likelihood Estimation on Manycore Architectures. CoRR abs/1804.09137 (2018) - 2017
- [j20]Ali Charara, David E. Keyes, Hatem Ltaief:
A framework for dense triangular matrix kernels on various manycore architectures. Concurr. Comput. Pract. Exp. 29(15) (2017) - [c31]Kadir Akbudak, Hatem Ltaief, Aleksandr Mikhalev, David E. Keyes:
Tile Low Rank Cholesky Factorization for Climate/Weather Modeling Applications on Manycore Architectures. ISC 2017: 22-40 - [i8]Wajih Halim Boukaram, George Turkiyyah, Hatem Ltaief, David E. Keyes:
Batched QR and SVD Algorithms on GPUs with Applications in Hierarchical Matrix Compression. CoRR abs/1707.05141 (2017) - [i7]Sameh Abdulah, Hatem Ltaief, Ying Sun, Marc G. Genton, David E. Keyes:
ExaGeoStat: A High Performance Unified Framework for Geostatistics on Manycore Systems. CoRR abs/1708.02835 (2017) - 2016
- [j18]Ahmad Abdelfattah, Hatem Ltaief, David E. Keyes, Jack J. Dongarra:
Performance optimization of Sparse Matrix-Vector Multiplication for multi-component PDE-based applications using GPUs. Concurr. Comput. Pract. Exp. 28(12): 3447-3465 (2016) - [j17]Yuxin Chen, David E. Keyes, Kody J. H. Law, Hatem Ltaief:
Accelerated Dimension-Independent Adaptive Metropolis. SIAM J. Sci. Comput. 38(5) (2016) - [j16]Ahmad Abdelfattah, David E. Keyes, Hatem Ltaief:
KBLAS: An Optimized Library for Dense Matrix-Vector Multiplication on GPU Accelerators. ACM Trans. Math. Softw. 42(3): 18:1-18:31 (2016) - [j15]Dalal Sukkari, Hatem Ltaief, David E. Keyes:
A High Performance QDWH-SVD Solver Using Hardware Accelerators. ACM Trans. Math. Softw. 43(1): 6:1-6:25 (2016) - [c30]Ali Charara, Hatem Ltaief, David E. Keyes:
Redesigning Triangular Dense Matrix Computations on GPUs. Euro-Par 2016: 477-489 - [c29]Dalal Sukkari, Hatem Ltaief, David E. Keyes:
High Performance Polar Decomposition on Distributed Memory Systems. Euro-Par 2016: 605-616 - [c28]Mohamed Amine Arfaoui, Hatem Ltaief, Zouheir Rezki, Mohamed-Slim Alouini, David E. Keyes:
Efficient Sphere Detector Algorithm for Massive MIMO using GPU Hardware Accelerator. ICCS 2016: 2169-2180 - [c27]Tareq M. Malas, Julian Hornich, Georg Hager, Hatem Ltaief, Christoph Pflaum, David E. Keyes:
Optimization of an Electromagnetics Code with Multicore Wavefront Diamond Blocking and Multi-dimensional Intra-Tile Parallelization. IPDPS 2016: 142-151 - 2015
- [j14]Tareq M. Malas, Georg Hager, Hatem Ltaief, Holger Stengel, Gerhard Wellein, David E. Keyes:
Multicore-Optimized Wavefront Diamond Blocking for Optimizing Stencil Updates. SIAM J. Sci. Comput. 37(4) (2015) - [j13]Rabab Alomairy, Guillermo Miranda, Hatem Ltaief, Rosa M. Badia, Xavier Martorell, Jesús Labarta, David E. Keyes:
Dense Matrix Computations on NUMA Architectures with Distance-Aware Work Stealing. Supercomput. Front. Innov. 2(1): 49-72 (2015) - [c25]Ahmad Abdelfattah, Hatem Ltaief, David E. Keyes:
High Performance Multi-GPU SpMV for Multi-component PDE-Based Applications. Euro-Par 2015: 601-612 - [i6]Tareq M. Malas, Georg Hager, Hatem Ltaief, David E. Keyes:
Multi-dimensional intra-tile parallelization for memory-starved stencil computations. CoRR abs/1510.04995 (2015) - [i5]Tareq M. Malas, Julian Hornich, Georg Hager, Hatem Ltaief, Christoph Pflaum, David E. Keyes:
Optimization of an electromagnetics code with multicore wavefront diamond blocking and multi-dimensional intra-tile parallelization. CoRR abs/1510.05218 (2015) - 2014
- [c24]Ahmad Abdelfattah, Eric Gendron, Damien Gratadour, David E. Keyes, Hatem Ltaief, Arnaud Sevin, Fabrice Vidal:
High Performance Pseudo-analytical Simulation of Multi-Object Adaptive Optics over Multi-GPU Systems. Euro-Par 2014: 704-715 - [c23]Ali Charara, Hatem Ltaief, Damien Gratadour, David E. Keyes, Arnaud Sevin, Ahmad Abdelfattah, Eric Gendron, Carine Morel, Fabrice Vidal:
Pipelining Computational Stages of the Tomographic Reconstructor for Multi-Object Adaptive Optics on a Multi-GPU System. SC 2014: 262-273 - [i4]Ahmad Abdelfattah, David E. Keyes, Hatem Ltaief:
KBLAS: An Optimized Library for Dense Matrix-Vector Multiplication on GPU Accelerators. CoRR abs/1410.1726 (2014) - [i3]Tareq M. Malas, Georg Hager, Hatem Ltaief, Holger Stengel, Gerhard Wellein, David E. Keyes:
Multicore-optimized wavefront diamond blocking for optimizing stencil updates. CoRR abs/1410.3060 (2014) - [i2]Tareq M. Malas, Georg Hager, Hatem Ltaief, David E. Keyes:
Towards energy efficiency and maximum computational intensity for stencil algorithms using wavefront diamond temporal blocking. CoRR abs/1410.5561 (2014) - 2012
- [c21]Ahmad Abdelfattah, David E. Keyes, Hatem Ltaief:
Systematic Approach in Optimizing Numerical Memory-Bound Kernels on GPU. Euro-Par Workshops 2012: 207-216 - [c17]Ahmad Abdelfattah, Jack J. Dongarra, David E. Keyes, Hatem Ltaief:
Optimizing Memory-Bound SYMV Kernel on GPU Hardware Accelerators. VECPAR 2012: 72-79
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