I am a postdoctoral researcher in the numerical analysis group at the STFC Rutherford Appleton Laboratory. I finished my PhD in 2015 at the Université Paul Sabatier Toulouse III on Task based multifrontal solvers for heterogeneous architectures and it was conducted in the context of the qr_mumps solver under the supervision of Alfredo Buttari.
My research interests lie in the domain of numerical linear algebra and high performance computing. I am particularly interested in the development of direct solvers for solving large sparse linear systems of equations. I am currently involved in the NLAFET project, a EU-funded Horizon 2020 project, aiming at improving the performance and scalability of linear algebra software for the emerging extreme-scale systems.
Refereed articles:
Implementing multifrontal sparse solvers for multicore architectures with sequential task flow runtime systems
E Agullo, A Buttari, A Guermouche and F Lopez
ACM Trans Math Software.
43, no. 2 (2016): 1-22, doi:10.1145/2898348.
Conference proceedings:
Task-Based Multifrontal QR Solver for GPU-Accelerated Multicore Architectures
E Agullo, A Buttari, A Guermouche and F Lopez
2015 IEEE 22nd International Conference on High Performance Computing (HiPC)
Fast and Accurate Simulation of Multithreaded Sparse Linear Algebra Solvers
L. Stanisic, E Agullo, A Buttari, A Guermouche, Arnaud R Legrand, F Lopez and Brice Videau
2015 IEEE 21st International Conference on Parallel and Distributed Systems (ICPADS)
Multifrontal QR Factorization for Multicore Architectures over Runtime Systems
E Agullo, A Buttari, A Guermouche and F Lopez
Euro-Par'13 Proceedings of the 19th international conference on Parallel Processing
Preprints & Technical reports:
Experiments with sparse Cholesky using a parametrized task graph implementation
I Duff and F Lopez
RAL Technical Reports RAL-TR-2017-006 (2017),
Rutherford Appleton Laboratory, Chilton, England.
(PDF)
Experiments with sparse Cholesky using a sequential task-flow implementation
I Duff, J Hogg and F Lopez
RAL Technical Reports RAL-TR-2016-016 (2016),
Rutherford Appleton Laboratory, Chilton, England.
(PDF)