12 citations · 26 across the 4 of their papers we have counts for
5 papers
General framework for re-assuring numerical reliability in parallel Krylov solvers: A case of BiCGStab methods
Roman Iakymchuk, Jose I. Aliaga
Parallel implementations of Krylov subspace methods often help to accelerate the procedure of finding an approximate solution of a linear system. However, such parallelization coup…
Compressed Basis GMRES on High Performance GPUs
José I. Aliaga, Hartwig Anzt, Thomas Grützmacher +2
Krylov methods provide a fast and highly parallel numerical tool for the iterative solution of many large-scale sparse linear systems. To a large extent, the performance of practic…
Reproducibility of Parallel Preconditioned Conjugate Gradient in Hybrid Programming Environments
Roman Iakymchuk, Maria Barreda, Stef Graillat +2
The Preconditioned Conjugate Gradient method is often employed for the solution of linear systems of equations arising in numerical simulations of physical phenomena. While being w…
Exploiting nested task-parallelism in the factorization
Rocío Carratalá-Sáez, Sven Christophersen, José I. Aliaga +3
We address the parallelization of the LU factorization of hierarchical matrices (-matrices) arising from boundary element methods. Our approach exploits task-paralleli…
Solving Dense Generalized Eigenproblems on Multi-threaded Architectures
José I. Aliaga, Paolo Bientinesi, Davor Davidović +3
We compare two approaches to compute a portion of the spectrum of dense symmetric definite generalized eigenproblems: one is based on the reduction to tridiagonal form, and the oth…