2 papers
math.NA2019
High Performance Block Incomplete LU Factorization
Matthias Bollhöfer, Olaf Schenk, Fabio Verbosio
Many application problems that lead to solving linear systems make use of preconditioned Krylov subspace solvers to compute their solution. Among the most popular preconditioning a…
cs.DS2019
State-of-The-Art Sparse Direct Solvers
Matthias Bollhöfer, Olaf Schenk, Radim Janalík +2
In this chapter we will give an insight into modern sparse elimination methods. These are driven by a preprocessing phase based on combinatorial algorithms which improve diagonal d…