Algebraic domain decomposition. - Matthias Bollhöfer (1998)

Algebraic Multilevel Methods and Sparse Approximate Inverses. - Matthias Bollhöfer; Volker Mehrmann (SIAM J. Matrix Anal. Appl., 2002)

On the Relations between ILUs and Factored Approximate Inverses. - Matthias Bollhöfer; Yousef Saad (SIAM J. Matrix Anal. Appl., 2002)

A Factored Approximate Inverse Preconditioner with Pivoting. - Matthias Bollhöfer; Yousef Saad (SIAM J. Matrix Anal. Appl., 2002)

A Robust and Efficient ILU that Incorporates the Growth of the Inverse Triangular Factors. - Matthias Bollhöfer (SIAM J. Sci. Comput., 2003)

Multilevel Preconditioners Constructed From Inverse-Based ILUs. - Matthias Bollhöfer; Yousef Saad (SIAM J. Sci. Comput., 2006)

Topic 10 Parallel Numerical Algorithms. - Iain S. Duff; Michel J. Daydé; Matthias Bollhöfer; Anne E. Trefethen (Euro-Par, 2007)

Parallelization of Multilevel Preconditioners Constructed from Inverse-Based ILUs on Shared-Memory Multiprocessors. - José Ignacio Aliaga; Matthias Bollhöfer; Alberto F. Martín; Enrique S. Quintana-Ortí (PARCO, 2007)

JADAMILU: a software code for computing selected eigenvalues of large sparse symmetric matrices. - Matthias Bollhöfer; Yvan Notay (Comput. Phys. Commun., 2007)

Design, Tuning and Evaluation of Parallel Multilevel ILU Preconditioners. - José Ignacio Aliaga; Matthias Bollhöfer; Alberto F. Martín; Enrique S. Quintana-Ortí (VECPAR, 2008)

On Large-Scale Diagonalization Techniques for the Anderson Model of Localization. - Olaf Schenk; Matthias Bollhöfer; Rudolf A. Römer (SIAM Rev., 2008)

Evaluation of Parallel Sparse Matrix Partitioning Software for Parallel Multilevel ILU Preconditioning on Shared-Memory Multiprocessors. - José Ignacio Aliaga; Matthias Bollhöfer; Alberto F. Martín; Enrique S. Quintana-Ortí (PARCO, 2009)

Algebraic Multilevel Preconditioner for the Helmholtz Equation in Heterogeneous Media. - Matthias Bollhöfer; Marcus J. Grote; Olaf Schenk (SIAM J. Sci. Comput., 2009)

Parallelization of Multilevel ILU Preconditioners on Distributed-Memory Multiprocessors. - José Ignacio Aliaga; Matthias Bollhöfer; Alberto F. Martín; Enrique S. Quintana-Ortí (PARA (1), 2010)

A Parallel 3D Unstructured Implicit RANS Solver for Compressible and Incompressible CFD Simulations. - Aldo Bonfiglioli; Sergio Campobasso; Bruno Carpentieri; Matthias Bollhöfer (PPAM (2), 2011)

Robust incomplete factorization for nonsymmetric matrices. - Amin Rafiei; Matthias Bollhöfer (Numerische Mathematik, 2011)

Exploiting thread-level parallelism in the iterative solution of sparse linear systems. - José Ignacio Aliaga; Matthias Bollhöfer; Alberto F. Martín; Enrique S. Quintana-Ortí (Parallel Comput., 2011)

ILUPACK. - Matthias Bollhöfer; José Ignacio Aliaga; Alberto F. Martín; Enrique S. Quintana-Ortí (Encyclopedia of Parallel Computing, 2011)

Leveraging Data-Parallelism in ILUPACK using Graphics Processors. - José Ignacio Aliaga; Matthias Bollhöfer; Ernesto Dufrechou; Pablo Ezzatti; Enrique S. Quintana-Ortí (ISPDC, 2014)

Leveraging Task-Parallelism with OmpSs in ILUPACK's Preconditioned CG Method. - José Ignacio Aliaga; Rosa M. Badia; Maria Barreda; Matthias Bollhöfer; Enrique S. Quintana-Ortí (SBAC-PAD, 2014)

Complete pivoting strategy for the left-looking Robust Incomplete Factorization preconditioner. - Amin Rafiei; Behnaz Tolue; Matthias Bollhöfer (Comput. Math. Appl., 2014)

Exploiting Task-Parallelism in Message-Passing Sparse Linear System Solvers Using OmpSs. - José Ignacio Aliaga; Maria Barreda; Matthias Bollhöfer; Enrique S. Quintana-Ortí (Euro-Par, 2016)

A Data-Parallel ILUPACK for Sparse General and Symmetric Indefinite Linear Systems. - José Ignacio Aliaga; Matthias Bollhöfer; Ernesto Dufrechou; Pablo Ezzatti; Enrique S. Quintana-Ortí (Euro-Par Workshops, 2016)

On the spectral equivalence of hierarchical matrix preconditioners for elliptic problems. - Mario Bebendorf; Matthias Bollhöfer; M. Bratsch (Math. Comput., 2016)

Exploiting task and data parallelism in ILUPACK's preconditioned CG solver on NUMA architectures and many-core accelerators. - José Ignacio Aliaga; Rosa M. Badia; Maria Barreda; Matthias Bollhöfer; Ernesto Dufrechou; Pablo Ezzatti; Enrique S. Quintana-Ortí (Parallel Comput., 2016)

Communication in task-parallel ILU-preconditioned CG solvers using MPI + OmpSs. - José Ignacio Aliaga; Maria Barreda; Goran Flegar; Matthias Bollhöfer; Enrique S. Quintana-Ortí (Concurr. Comput. Pract. Exp., 2017)

Extending ILUPACK with a Task-Parallel Version of BiCG for Dual-GPU Servers. - José Ignacio Aliaga; Matthias Bollhöfer; Ernesto Dufrechou; Pablo Ezzatti; Enrique S. Quintana-Ortí (PMAM@PPoPP, 2018)

Distributed memory sparse inverse covariance matrix estimation on high-performance computing architectures. - Aryan Eftekhari; Matthias Bollhöfer; Olaf Schenk (SC, 2018)

A block version of left-looking AINV preconditioner with one by one or two by two block pivots. - Amin Rafiei; Matthias Bollhöfer; Fayssal Benkhaldoun (Appl. Math. Comput., 2019)

State-of-The-Art Sparse Direct Solvers. - Matthias Bollhöfer; Olaf Schenk; Radim Janalík; Steve Hamm; Kiran Gullapalli (CoRR, 2019)

High Performance Block Incomplete LU Factorization. - Matthias Bollhöfer; Olaf Schenk; Fabio Verbosio (CoRR, 2019)

Large-scale Sparse Inverse Covariance Matrix Estimation. - Matthias Bollhöfer; Aryan Eftekhari; Simon Scheidegger; Olaf Schenk (SIAM J. Sci. Comput., 2019)

Block-enhanced precision matrix estimation for large-scale datasets. - Aryan Eftekhari; Dimosthenis Pasadakis; Matthias Bollhöfer; Simon Scheidegger; Olaf Schenk (J. Comput. Sci., 2021)

Sparse Quadratic Approximation for Graph Learning. - Dimosthenis Pasadakis; Matthias Bollhöfer; Olaf Schenk (IEEE Trans. Pattern Anal. Mach. Intell., 2023)

Statistical reduced order modelling for the parametric Helmholtz equation. - Lucas Hermann; Matthias Bollhöfer; Ulrich Römer (CoRR, 2024)

Efficient low rank model order reduction of vibroacoustic problems under stochastic loads. - Yannik Hüpel; Ulrich Römer; Matthias Bollhöfer; Sabine C. Langer (CoRR, 2024)

Algorithm 1042: Sparse Precision Matrix Estimation with SQUIC. - Aryan Eftekhari; Lisa Gaedke-Merzhäuser; Dimosthenis Pasadakis; Matthias Bollhöfer; Simon Scheidegger; Olaf Schenk (ACM Trans. Math. Softw., 2024)