ListarICC_Articles por tema "accuracy"
Mostrando ítems 1-4 de 4
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General framework for re-assuring numerical reliability in parallel Krylov solvers: A case of bi-conjugate gradient stabilized methods
SAGE Publications Inc. (2024-01-01)Parallel implementations of Krylov subspace methods often help to accelerate the procedure of finding an approximate solution of a linear system. However, such parallelization coupled with asynchronous and out-of-order ... -
Hierarchical approach for deriving a reproducible unblocked LU factorization
Sage (2019-03-17)We propose a reproducible variant of the unblocked LU factorization for graphics processor units (GPUs). For this purpose, we build upon Level-1/2 BLAS kernels that deliver correctly-rounded and reproducible results for ... -
Reproducibility of parallel preconditioned conjugate gradient in hybrid programming environments
Sage (2020-06-17)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 widely used, the solver is also known for ... -
Reproducibility strategies for parallel Preconditioned Conjugate Gradient
Elsevier (2020-01-02)The Preconditioned Conjugate Gradient method is often used in numerical simulations. While being widely used, the solver is also known for its lack of accuracy while computing the residual. In this article, we aim at a ...