## Ulrike Meier YangEmail: yang11@llnl.gov
Phone: 925-422-2850 Mailing address:
Ulrike Meier Yang Lawrence Livermore National Laboratory Box 808, L-561 Livermore, CA 94551-0808 |

Ulrike Meier Yang is a computer scientist in the Center for Applied Scientific Computing. She is a member of the Scalable Linear Solvers project. Her research interests are numerical algorithms, particularly iterative linear system solvers and algebraic multigrid methods, parallel computing, performance evaluation and software design.

Prior to joining LLNL in 1998, she worked in the Center for Supercomputing Research and Development at the University of Illinois at Urbana-Champaign (1985-1995) and in the Central Institute of Applied Mathematics at the Research Centre Juelich at Juelich, Germany (1983-1985). She earned her Ph.D. in Computer Science at the University of Illinois at Urbana-Champaign in 1995 and a Diplom in mathematics at the Ruhr-University Bochum, Germany, in 1983.

### Publications

### Refereed Journal Articles

*Numerical Linear Algebra with Applications.*Also available as LLNL technical report LLNL-JRNL-417371, 2009.

*Numerical Linear Algebra with Applications.*Also available as LLNL technical report LLNL-JRNL- 412928, 2009.

*Numerical Linear Algebra with Applications*

**15**, (2008), pp. 115-139

*.*

*SIAM Journal on Matrix Analysis and Applications,*27, (2006), pp. 1019-1039.

Falgout, Robert D., Jim E. Jones and Ulrike Meier Yang, "Pursuing Scalability for

*hypre'*s Conceptual Interfaces",

*ACM Transactions on Mathematical Software*, 31, (2005), pp. 326-350.

Yang, Ulrike Meier, "On the Use of Relaxation Parameters in Hybrid Smoothers",

*Numerical Linear Algebra With Applications*,

**11,**(2004), pp. 155-172.

Falgout, Robert D., Jim E. Jones, and Ulrike Meier Yang, "Conceptual Interfaces in

*hypre"*,

*Future Generation Computer Syst*., 22, (2006), pp.239-251.

Henson, Van Emden, and Ulrike Meier Yang,

*"BoomerAMG*: A Parallel Algebraic Multigrid Solver and Preconditioner",

*Applied Numer. Math*.,

**41**, (2002), pp. 155-177.

Yang, Ulrike Meier, and Kyle A. Gallivan, "A New Family of Block Methods,"

*Applied Numer. Math.*,

**30,**(1999), pp.155-173.

Yang, Ulrike Meier, and Kyle A. Gallivan, "A New Family of Preconditioned Iterative Solvers for Nonsymmetric Linear Systems,

*Appl. Num. Math,*

**19**, (1995), pp.287-317.

Meier, Ulrike, and Ahmed Sameh, "The Behavior of Conjugate Gradient Methods on a Multi-Vector Processor,

*J. of Comp. and Appl. Math*.,

**24**, (1988), pp. 13-32.

Gallivan, Kyle, William Jalby, Ulrike Meier, and Ahmed Sameh, "The Impact of Hierarchical Memory Systems on Linear Algebra Algorithm Design,

*Int. J. of Supercomputer Appl*.,

**2**, (1988), pp. 12-48.

Gallivan, Kyle, William Jalby, and Ulrike Meier, "The Use of BLAS3 in Linear Algebra on a Parallel Processor with a Hierarchical Memory,

*SIAM J. on Sci. and Stat. Computing*,

**8**, (1987), pp. 1079-1084.

Meier, Ulrike, "Two Parallel SOR Variants of the Schwarz Alternating Procedure,

*Parallel Computing*,

**3**, (1986), pp. 205-215.

Meier, Ulrike, "A Parallel Partition Method for Solving Banded Systems of Linear Equations,

*Parallel Computing,*

**2**, (1985), pp. 33-45.

### Book Chapters

Yang, Ulrike Meier, "Parallel Algebraic Multigrid Methods - High Performance Preconditioners", in*Numerical Solutions of PDEs on Parallel Computers,*A.M. Bruaset and A. Tveito, Eds.

*Lecture Notes in Computational Science and Engineering,*Springer-Verlag, 2006, pp. 209-236.

Falgout, Robert D., Jim E. Jones and Ulrike Meier Yang, "The Design and Implementation of

*hypre,*a Library of Parallel High Performance Preconditioners", in

*Numerical Solutions of PDEs on Parallel Computers,*A.M. Bruaset and A. Tveito, Eds.

*Lecture Notes in Computational Science and Engineering,*Springer-Verlag, 2006, pp. 267-294.

Chow, Edmond, Robert D. Falgout, Jonathan J. Hu, Raymond S. Tuminaro and Ulrike Meier Yang, "A Survey of Parallelization Techniques for Multigrid Solvers", in

*Parallel Processing for Scientific Computing,*M. Heroux, P. Raghavan, H. Simon, Eds., SIAM, 2006.

### Conference Papers

De Sterck, Hans, Robert D. Falgout, Joshua W. Nolting and Ulrike Meier Yang, “Distance-Two Interpolation for Parallel Algebraic Multigrid”, *Journal of Physics: Conference Series* **78**, 2007, 012017*. *

Falgout, Robert D., and Ulrike Meier Yang, *"hypre*: A Library of High Performance Preconditioners", in *Computational Science ICCS 2002 Part III, *P.M.A. Sloot, C.J.K. Tan, J.J, Dongarra and A.G. Hoekstra, Eds. *Lecture Notes in Computer Science*, **2331**, (2002), pp. 632-641, Springer-Verlag.

Henson, Van Emden, and Ulrike Meier Yang, "Experiences with *BoomerAMG*: A Parallel Algebraic

Multigrid Solver and Preconditioner for Large Linear Systems", *Proc. 16th IMACS World Congr. 2000 on Sci. Comput., Appl. Math. & Sim*., Lausanne, Switzerland, August 2125, 2000.

Yang, Ulrike Meier, and Kyle A. Gallivan, "A New Family of Block Methods, *Proc. 15th IMACS World Congress*, Berlin, Germany, 1997.

Yang, Ulrike Meier, and Kyle A. Gallivan, "Preconditioned Iterative Solvers Based on Rank-One Updates for Nonsymmetric Linear Systems, *Proc. 14th IMACS World Congress*, Atlanta, (1994), pp. 1551-1554.

Kuck, D., E. Davidson, D. Lawrie, A. Sameh, C.-Q. Zhu, A. Veidenbaum, J. Konicek, P. Yew, K. Gallivan, W. Jalby, H. Wijshoff, R. Bramley, U. Meier Yang, P. Emrath, D. Padua, R. Eigenmann, J. Hoeflinger, G. Jaxon, Z. Li, T. Murphy, J. Andrews, and S. Turner, "The Cedar System and an Initial Performance Study", *Proc. 20th International Symposium on Computer Architecture*, San Diego, CA, (1993), pp. 213-223.

Meier, Ulrike, and Rudolph Eigenmann, "Parallelization and Performance of Conjugate Gradient Algorithms" on the Cedar Hierarchical-Memory Multiprocessor, *Proc. 3rd ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming*, Williamsburg, VA, (1991), pp. 178-188.

Berry, M., H.-C. Chen, E. Gallopoulos, U. Meier, A. Tuchman, H. Wijshoff, and G.-C. Yang, "Algorithm Design on the Cedar Multiprocessor", *Proc. 4th International Conference on Supercomputing and 3rd World Computer Exhibition*, Santa Clara, CA, **27**, (1989), pp. 78-88.

Bramley, R., H.-C. Chen, U. Meier, and A. Sameh, "On Some Parallel Preconditioned CG Schemes", O. Axelsson, L. Kolotilina, Eds., *Preconditioned Conjugate Gradient Methods*, Springer Verlag, (1989), pp. 17-28.

Frank, G., E. Gallopoulos, and U. Meier, "Experiments with Elliptic Problem Solvers", in: J. Dongarra, P. Messina, D. Sorensen, R. Voigt, Eds., *Proc. 4th SIAM Conference on Parallel Processing for Scientific Computing*, (1989), pp. 245-250.

Laminie, J., and U. Meier, "Solving Navier-Stokes Equations on the Cedar Multi-Cluster System", J. Dongarra, P. Messina, D. Sorensen, R. Voigt, Eds., *Proc. 4th SIAM Conference on Parallel Processing for Scientific Computing*, (1989), pp. 174-179.

Meier, U., and A. Sameh, "Numerical Linear Algebra on the CEDAR Multiprocessor, Luk, Ed., *Advanced Algorithms and Architectures for Signal Processing II, Proc. SPIE*, **826**, (1987), pp. 19.

Berry, M., K. Gallivan, W. Harrod, W. Jalby, S. Lo, U. Meier, B. Philippe, and A. Sameh, "Parallel Numerical Algorithms on the Cedar System", *Lecture Notes in Computer Science*, **237**, Springer Verlag, (1986), pp. 25-39.

Jalby, W., and U. Meier, "Optimizing Matrix Operations on a Parallel Multi-Processor with a Hierarchical Memory System", K. Hwang, S. Jacobs, E. Swartzlander, Eds., *Proc. 1986 International Conference on Parallel Processing*, IEEE Computer Society, (1986), pp. 429-432.

Meier, U., "Variants of the Schwarz Alternating Procedure on Parallel Processors" in M. Feilmeier, G. Joubert, U. Schendel, Eds., *Para. Computing*, **85**, North-Holland, (1986), pp. 181-186.

Meier, U., "Vergleichende Betrachtungen zu Verfahren zur Loesung linearer Gleichungssysteme mit Tri- und Pentadiagonalmatrizen auf Vektorrechnern", PARS Mitteilungen, **2**, (1984), pp. 8-13.

### Technical Reports

Gallivan, Kyle A. and Ulrike Meier Yang*, Efficiency Issues in Parallel Coarsening Schemes*, Lawrence Livermore National Laboratory technical report UCRL-ID-153078, May 2003.

Yang, Ulrike Meier.,

*A Family of Preconditioned Iterative Solvers for Sparse Linear Systems*, Ph.D. thesis, Technical Report UIUCDCS-R-95-1904, Department of Computer Science, and CSRD-Report No. 1408, University of Illinois at Urbana-Champaign, 1995.

Gallivan, Kyle, and Ulrike Meier Yang,

*Documentation and Cedar Experiments for FLO52*, CSRD-Report No. 1354, University of Illinois at Urbana-Champaign, 1994.

Yang, Ulrike Meier, and Kyle Gallivan,

*Analysis of a Cedar Implementation of DYFESM*, CSRD-Report No. 1284, University of Illinois at Urbana-Champaign, 1993.

Yang, Ulrike Meier,

*Preconditioned Conjugate Gradient Schemes for Hierarchical Parallel Architectures*, CSRD-Report No. 1226, University of Illinois at Urbana-Champaign, 1992.

Yang, Ulrike Meier.,

*Preconditioned Conjugate Gradient-Like Methods for Nonsymmetric Linear Systems*, CSRD-Report No. 1210, University of Illinois at Urbana-Champaign, 1992.

Meier, U., G. Skinner, and J. Gunnels,

*A Collection of Codes for Sparse Matrix Computations*, CSRD-Report No. 1134, University of Illinois at Urbana-Champaign, 1991.

Sameh, A., S. Aslam, M. Berry, R. Bramley, H.-C. Chen, V. Eijkhout, K. Gallivan, S. Gallopoulos, M. Heath, F.-L. Juang, U. Meier, and G.-C. Yang,

*Algorithms and Applications Group: Center for Supercomputing Research and Development Semiannual Report July 1990- December 1990*, CSRD Report No. 1127, University of Illinois at Urbana-Champaign, 1991.

Jalby, W., and U. Meier,

*Documentation of the Routines for Performing Matrix Operations*, CSRD-Report No. 566, University of Illinois at Urbana-Champaign, 1986.

Meier, Ulrike,

*Parallele Algorithmen fuer gewoehnliche Differentialgleichungen*, diploma thesis, 1983.

Updated: 2010-07-01 08:46:26