Publications

A. Litvinenko, R. Kriemann, M.G. Genton, Y. Sun and D Keyes

HLIBCov : parallel hierarchical matrix approximation of large covariance matrices and likelihoods with applications in parameter identification

MethodsX, 7 (2020), 100600

S. Börm, S. Christophersen and R. Kriemann

Semi-automatic task graph construction for 𝓗-matrix arithmetic

ARXIV: 1911.07531, submitted to SISC.

N. Doucet, R. Kriemann, E. Gendron, D. Gratadour, H. Ltaief and D. Keyes

Scalable soft real-time supervisor for tomographic AO

In: Conference on adaptive optics systems VI : 10-15 June 2018, Austin, Texas, United States / Laird Close... (eds.) Bellingham, Washington, USA : SPIE, 2018 (Proceedings of SPIE ; 10703)

José I. Aliaga and Rocío Carratalá-Sáez and Ronald Kriemann and Enrique S. Quintana-Ortí,

𝓗-Task-parallel LU factorization of hierarchical matrices using OmpSs

In: 2017 IEEE 31st international parallel and distributed processing symposium workshops (IPDPSW 2017) : proceedings ; May 29 2017-June 2 2017 ; Orlando, Florida, USA New York : IEEE, 2017. - P. 1148-1157

Sabine Le Borne and Ronald Kriemann,

𝓗-FAINV: Hierarchically factored approximate inverse preconditioners

Computing and Visualization in Science, Volume 17, Issue 3, pp 135-150,

2015.

Lars Grasedyck, Ronald Kriemann, Christian Löbbert, Arne Nägel, Gabriel Wittum, Konstantinos Xylouris,

Parallel tensor sampling in the hierarchical Tucker format

Computing and Visualization in Science, Volume 17, Issue 2, pp 67-78,

2015.

Ronald Kriemann,

𝓗-LU Factorization on Many-Core Systems

Computing and Visualization in Science, 16, pp. 105-117,

2015.

Sabine Le Borne, Lars Grasedyck and Ronald Kriemann,

Domain-decomposition based 𝓗-LU preconditioning,

Numerische Mathematik, Vol. 112, pp. 565-600,

2009.

Lars Grasedyck, Wolfgang Hackbusch and Ronald Kriemann

Performance of 𝓗-LU Preconditioning for Sparse Matrices

Computational Methods in Applied Mathematics, 8(4), pp. 336-349,

2008.

Ronald Kriemann

HLIBpro C Language Interface

Technical Report and Documentation 10/2008, MPI Leipzig.

Ronald Kriemann

HLIBpro User Manual

Technical Report and Documentation 9/2008, MPI Leipzig.

Lars Grasedyck, Ronald Kriemann and Sabine Le Borne

Parallel blackbox 𝓗-LU preconditioning for elliptic boundary value problems,

Computing and Visualization in Sciences, Vol. 11, pp 273-291,

2007.

Sabine Le Borne, Lars Grasedyck and Ronald Kriemann,

Domain-decomposition based 𝓗-LU preconditioners,

Domain Decomposition Methods in Science and Engineering XVI, O.B. Widlund and D.E. Keyes (eds.), Springer LNCSE 55, pp. 667-674,

2007.

Mario Bebendorf, Ronald Kriemann,

Fast Parallel Solution of Boundary Integral Equations and Related Problems,

Computing and Visualization in Sciences, 8/3-4, pp. 121-135,

2005.

Wolfgang Hackbusch, Boris N. Khoromskij and Ronald Kriemann,

Direct Schur complement method by domain decomposition based on 𝓗-matrix approximation,

Computing and Visualization in Sciences, 8/3-4, pp. 179-188,

2005.

Wolfgang Hackbusch, Boris N. Khoromskij and Ronald Kriemann,

Direct Schur Complement Method by Hierarchical Matrix Techniques,

Domain Decomposition Methods in Science and Engineering, LNCSE, Vol. 40, pp. 581-589,

2004.

Ronald Kriemann,

Parallel 𝓗-Matrix Arithmetics on Shared Memory Systems,

Computing 74, pp. 273-297,

2005.

Wolfgang Hackbusch, Boris N. Khoromskij and Ronald Kriemann,

Hierarchical Matrices based on a Weak Admissibility Criterion,

Computing 73, pp. 207-243,

2004.

Ronald Kriemann,

Implementation and Usage of a Thread Pool based on POSIX Threads,

Technical Report and Documentation 2/2003, MPI Leipzig.

Ronald Kriemann, Jens Burmeister and Rainer Kleinrensing,

Benchmarking a Shared Memory System,

Technical Report and Documentation 1/2003, MPI Leipzig

W. Hackbusch, R. Kriemann, S. Le Borne, J.-F. Maitre,

CD2D3D - a package to solve convection dominated problems employing ordering techniques,

Notes on Numerical Fluid Mechanics Vol. 75 (Springer),

pp. 34-48,

2001.

SIAM CSE21

Comparison of Low-Rank Update Techniques for 𝓗-Arithmetic

2021-03-05

SIAM PP18

Semi-Automatic DAG Generation for (Tiled) 𝓗-Arithmetic

Seattle, Washington

2020-02-13

TC/PC² Kolloquium

𝓗-Matrices and 𝓗-Arithmetic on Many-Core-Systems

University of Paderborn

2018-09-10

SIAM ALA18,

Efficiency and Accuracy of Parallel Accumulator-based 𝓗-Arithmetic

Hong Kong Baptist University

2018-05-06

SIAM PP18,

Accumulator based Task-parallel 𝓗-Factorization

Waseda University, Tokyo

2018-03-08

European ExaScale Application Workshop,

Parallel 𝓗-Arithmetic On Many-Core Systems and Beyond,

School of Mathematics, University of Manchester

2016-10-11/12.

SHAXC-3,

Parallel 𝓗-Arithmetic for Multi- and Many-Core Systems,

KAUST,

2016-05-09.

Colloquium of the Faculty of Engineering at the Dep. of Computer Science,

𝓗-Arithmetic for Many-Core Systems,

Kiel University,

2015-10-22.

𝓗-Matrix Winterschool,

Task-Based 𝓗-Matrix Arithmetic, Part I: Algorithm Design,

MPI MIS Leipzig,

2014-02-27.

𝓗-Matrix Winterschool,

Task-Based 𝓗-Matrix Arithmetic, Part II: Implementation,

MPI MIS Leipzig,

2014-02-27.

Numerische Behandlung von 𝓗-Matrizen mit der HLIBpro,

TU Bergakademie Freiberg,

2011-11-09.

Workshop "Complex Systems",

Parallel Black Box 𝓗-LU Preconditioning,

METU Ankara,

2009-05-15.

𝓗-Matrix Winterschool,

𝓗-Matrix Parallelisation,

MPI MIS Leipzig,

2009-03-05.

𝓗-Matrix Winterschool,

Black Box Clustering and Parallel 𝓗-LU Factorisation,

MPI MIS Leipzig,

2009-03-04.

𝓗-Matrix Winterschool,

𝓗-Matrix Parallelisation,

MPI MIS Leipzig,

2008-03-20.

𝓗-Matrix Winterschool,

Parallelisation of 𝓗-Matrix Computations,

MPI MIS Leipzig,

2007-03-16.

ALA2006,

Parallel Hierarchical Matrices,

Universität Düsseldorf,

2006-07-26.

Verteidigung,

Parallele Algorithmen für 𝓗-Matrizen,

Christian-Albrechts-Universität zu Kiel,

2005-04-15.

Oberseminar Numerik,

Dynamic Memory Managment ,

MPI MIS Leipzig,

2004-02-04.

20th GAMM-Seminar Leipzig on Numerical Methods for Non-Local Operators,

Parallel 𝓗-matrix Arithmetic for Shared Memory Systems ,

MPI MIS Leipzig,

2004-01-24.

Oberseminar Numerik,

Parallel Algorithms for 𝓗-matrices (Part I) ,

MPI MIS Leipzig,

2003-11-26.

Workshop über "Algorithms for the Arithmetic of Dense Matrices from BEM/FEM",

Parallel Algorithms for 𝓗-matrices ,

Oberwolfach,

2001-07-12.

Oberseminar Numerik,

Anordnungstechniken für konvektionsdominante Probleme im R³ ,

Kiel,

1998-12-03.

Ronald Kriemann,

Parallel Programming

1. Introduction (handout),

2. Vectorisation (handout),

3. Shared Memory Programming (handout),

4. OpenMP (handout),

5. Threading Building Blocks (handout),

LaTeX Sources

MPI MIS Leipzig

2013.

Ronald Kriemann,

C++ for Scientific Computing

LaTeX Sources

MPI MIS Leipzig

2008.

Ronald Kriemann,

Parallele Algorithmen für 𝓗-Matrizen,

PhD Thesis, Universität Kiel

2005.

Ronald Kriemann,

Anordnungsalgorithmen für konvektionsdominante Probleme und deren Implementierung,

Diploma Thesis, Universität Kiel

1999.

Articles

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2019

2018

2017

2015

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Talks

2021

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1998

Lectures

2013

2008

Thesis

2005

1999