4 papers
Parallel matching-based AMG preconditioners for elliptic equations discretized by IgA
Pasqua D'Ambra, Fabio Durastante, Salvatore Filippone
Isogeometric analysis (IgA) offers enhanced approximation capabilities for the discretization of elliptic boundary-value problems, yet it results in large, sparse, and increasingly…
Optimal Polynomial Smoothers for Parallel AMG
Pasqua D'Ambra, Fabio Durastante, Salvatore Filippone +2
In this paper, we explore polynomial accelerators that are well-suited for parallel computations, specifically as smoothers in Algebraic MultiGrid (AMG) preconditioners. These acce…
PSCToolkit: solving sparse linear systems with a large number of GPUs
Pasqua D'Ambra, Fabio Durastante, Salvatore Filippone
In this chapter, we describe the Parallel Sparse Computation Toolkit (PSCToolkit), a suite of libraries for solving large-scale linear algebra problems in an HPC environment. In pa…
Efficient computation of the sinc matrix function for the integration of second-order differential equations
Lidia Aceto, Fabio Durastante
This work deals with the numerical solution of systems of oscillatory second-order differential equations which often arise from the semi-discretization in space of partial differe…