2014
- September 4th
J.D. Hogg
Pivoting for Matrix Factorizations on Manycore Architectures (link opens in a new window)
4th IMA Conference on Numerical Linear Algebra and Optimization, Birmingham
- July 21st
J.A. Scott
Sparse Communication Avoiding Pivoting (link opens in a new window)
Sixth SIAM Workshop on Combinatorial Scientific Computing, Lyon, France
- July 8th
J.A. Scott
Challenges in Sparse Linear Solvers (link opens in a new window)
International Workshop on Algorithms and Software for Scientific Computing, Vienna, Austria
- June 8th
J.A. Scott
Memory-Efficient Incomplete Factorizations for Sparse Symmetric Systems (link opens in a new window)
Householder Symposium XIX, Spa, Belgium
- June 5th
J.D. Hogg
A GPU sparse symmetric indefinite solver with pivoting (link opens in a new window)
Sparse Days 2014, CERFACS, Tolouse, France
- Feburary 12th
J.D. Hogg
A Sparse Direct Solver for GPUs (link opens in a new window)
Oxford e-Research Center Seminar, Oxford
- January 9th
N.I.M. Gould
Secular equations - applications and methods (link opens in a new window)
SIAM UKIE annual meeting, University College London
2013
- July 29th
N.I.M. Gould
A practical dual gradient-projection method for large-scale, strictly-convex quadratic programming (link opens in a new window)
International Conference on Continuous Optimization 2013, Lisbon, Portugal
- July 8th
J.D. Hogg
HSL and Challenges in Sparse Direct Linear Solvers (link opens in a new window)
Sparse Linear Algebra Solvers for High Performance Computing Workshop, Warwick
- June 27th
T. Rees
Iterative methods within optimization problems (link opens in a new window)
25th Biennial Conference on Numerical Analysis, University of Strathclyde
N.I.M. Gould
A practical dual gradient-projection method for large-scale, strictly-convex quadratic programming (link opens in a new window)
25th Biennial Conference on Numerical Analysis, University of Strathclyde
- June 25th
J. D. Hogg
Sparse Communication Avoiding Pivoting (link opens in a new window)
25th Biennial Conference on Numerical Analysis, University of Strathclyde
- June 21st
T. Rees
Projected Krylov methods for general saddle-point systems (link opens in a new window)
International Conference On Preconditioning Techniques For Scientific And Industrial Applications,
University of Oxford
- June 20th
J.A. Scott
On positive semidefinite modification schemes
for incomplete Cholesky factorization (link opens in a new window)
International Conference On Preconditioning Techniques For Scientific And Industrial Applications,
University of Oxford
- June 17th
J.A. Scott
A robust limited-memory incomplete
Cholesky factorization (link opens in a new window)
Sparse Days, CERFACS
- April 9th
I.S. Duff
Disruptive Technologies (link opens in a new window)
Exascale Applications and Software, Edinburgh
- April 5th
M. Arioli
Iterative Methods for Symmetric Quasi-Definite Linear Systems (link opens in a new window)
Seminar, Purdue University
- March 25th
M. Arioli
Sparse numerical linear algebra and interpolation spaces (link opens in a new window)
Seminar, Georgia Tech
- March 15th
N.I.M. Gould
Modern methods for quadratic programming (link opens in a new window)
Landscapes in Mathematical Sciences, University of Bath
- Janurary 28th
J.D. Hogg
A fast triangular solve on GPUs (link opens in a new window)
Bath/RAL Numerical Analysis Day, University of Bath
T. Rees
Can you use MINRES with an indefinite preconditioner? (PDF - link opens in a new window)
Bath/RAL Numerical Analysis Day, University of Bath
2012
- September 11th
J.D. Hogg
Performance of Linear Solvers in Interior Point Methods (link opens in a new window)
3rd IMA Conference on Numerical Linear Algebra and Optimization, Birmingham
J.A. Scott
Improving the performance of direct solvers for sparse symmetric indefinite linear systems (link opens in a new window)
3rd IMA Conference on Numerical Linear Algebra and Optimization, Birmingham
T. Rees
A multi-preconditioned GMRES algorithm (link opens in a new window)
3rd IMA Conference on Numerical Linear Algebra and Optimization, Birmingham
- September 9-14
M. Arioli and D. Loghin
Numerical sparse linear algebra and interpolation spaces (link opens in a new window)
ALGORITMY 2012 Conference on Scientific Computing, Podbanske, Slovakia
- September 4th
M. Arioli and D. Orban
Iterative Methods for Symmetric Quasi-Definite Linear Systems (link opens in a new window)
XII GAMM Workshop on Applied and Numerical Linear Algebra, Liblice, Czech Republic
- July 18th
J.D. Hogg
Challenges in Parallel Sparse Direct Linear Solvers (link opens in a new window)
Perspectives on Parallel Numerical Linear Algebra (PPNLA)
- June 28th
J.D. Hogg
Fast triangular solve on GPUs (link opens in a new window)
Parallel Matrix Applications and Algorithms (PMAA) 2012, Birkbeck University of London
J.A. Scott
Achieving bit-compatibility in a sparse direct symmetric solver (link opens in a new window)
Parallel Matrix Applications and Algorithms (PMAA) 2012, Birkbeck University of London
- June 25th
J. A. Scott
Finding weighted matchings for singular sparse symmetric matrices (link opens in a new window)
Sparse Days at CERFACS, Toulouse, France
M. Arioli and D. Orban
Iterative Methods for Symmetric Quasi-Definite Linear Systems (link opens in a new window)
Sparse Days at CERFACS, Toulouse, France
- June 21st
J. A. Scott
Chebychev acceleration of iterative refinement (link opens in a new window)
SIAM Conference on Applied Linear Algebra, Valencia, Spain
- June 18th
T. Rees
A multi-preconditioned GMRES algorithm (PDF - link opens in a new window)
SIAM Conference on Applied Linear Algebra, Valencia, Spain
- May 23rd
J.D. Hogg
_TRSV: Optimizing triangular solve in CUDA (link opens in a new window)
Oxford e-Research Center Many-core seminar
- January 19th
J.A. Scott
Antibandwidth maximization: a map coloring problem
STFC Rutherford Appleton Laboratory
- January 17th
J.A. Scott
Antibandwidth maximization: a map coloring problem
University of Reading
2011
- December 9th
J.A. Scott
Antibandwidth maximization: a map coloring problem
Courant Institue, New York
J.A. Scott
Antibandwidth maximization: a map coloring problem
IBM, Yorktown Heights, New Jersey
- December 5th
J.A. Scott
An introduction to the world of sparse direct solvers (link opens in a new window)
AT&T, New Jersey
- October 7th
J. D. Hogg
The HSL Mathematical Software Library: Past, present and future (link opens in a new window)
NAG Ltd, Oxford, UK
- September 6th
J. A. Scott
An introductory look at the antibandwidth problem (PDF - link opens in a new window)
Sparse Days 2011, CERFACS, Tolouse, France
- July 19th
I. S. Duff
The use of direct methods in the solution of sparse linear equations for constrained optimization (link opens in a new window)
ICIAM 2011, Vancouver, Canada
- June 29th
N. I. M. Gould
Puiseux-based
extrapolation for large-scale degenerate quadratic programming (link opens in a new window)
24th Biennial Conference on Numerical Analysis,
Strathclyde University
J. D. Hogg
Experience of Linear Solvers in a Nonlinear Interior Point Method (link opens in a new window)
24th Biennial Conference on Numerical Analysis, Strathclyde University
- June 15th
J. A. Scott
The robust
and efficient partial factorization of dense symmetric indefinite matrices (link opens in a new window)
Householder symposium, Lake Tahoe
- June 13th
M. Arioli
Generalized Golub-Kahan bidiagonalization and stopping criteria (link opens in a new window)
Householder symposium, Lake Tahoe
H. S. Thorne
Preconditioners
for PDE-constrained optimisation problems (link opens in a new window)
Householder symposium, Lake Tahoe
- May 20th
N. I. M. Gould
CQP:
a fortran 90 module for large-scale convex quadratic programming (link opens in a new window)
SIAM Conference on Optimization, Darmsdadt, Germany
- May 17th
J. A. Scott
A novel
approach to level-based preconditioners (link opens in a new window)
Preconditioning Techniques, Bordeaux
- April 11th
M. Arioli
Linear Regression models and stopping criteria for Krylov methods (link opens in a new window)
BAM Conference 2011, Birmingham
2010
- December 9th
M. Arioli
An introduction to Quantum Graphs theory (link opens in a new window)
ENSEEIHT CERFACS, Toulouse
- November 25th
N. I. M. Gould
CQP: a fortran 90 module for large-scale convex quadratic programming (link opens in a new window)
OPTEC Workshop on Large Scale QP, Leuven, Belgum
- November 12th
H. S. Thorne
PDE-constrained optimisation: from linear to nonlinear constraints (link opens in a new window)
Optimization and Inverse Problems Seminar Series, University of Basel, Switzerland
- September 16th
H. S. Thorne
PDE-constrained optimisation: from linear to nonlinear constraints (link opens in a new window)
Optimization, Design and Control Workshop, Oxford, UK
- September 15th
H. S. Thorne
PDE-constrained optimisation: why is it so challenging and some methods
to overcome these challenges (link opens in a new window)
2nd IMA Conference on Numerical Linear Algebra and Optimisation, Birmingham, UK
- September 13th
J. D. Hogg
The challenge of the solve phase of a multicore solver (link opens in a new window)
2nd IMA Conference on Numerical Linear Algebra and Optimisation, Birmingham, UK
J. A. Scott
Designing sparse direct solvers for multicore architectures (link opens in a new window)
2nd IMA Conference on Numerical Linear Algebra and Optimisation, Birmingham, UK
- July 20th
M. Arioli
An Introduction to Quantum Graphs Theory (link opens in a new window)
Daresbury Laboratory, UK
- July 2nd
J. D. Hogg
The challenge of the solve phase of a multicore solver (link opens in a new window)
Parallel Matrix Algorithms and Applications 2010, Basel, Switzerland.
- July 1st
J. A. Scott
Designing sparse direct solvers for multicore architectures (link opens in a new window)
Parallel Matrix Algorithms and Applications 2010, Basel, Switzerland.
- June 15th
M. Arioli
Generalized Golub-Kahan bidiagonalization and stopping criteria (link opens in a new window)
Sparse Days 2010, CERFACS, Toulouse
J. A. Scott
The multicore challenge: the sparse indefinite case (link opens in a new window)
Sparse Days 2010, CERFACS, Toulouse
H. S. Thorne
Challenges from PDE-constrained optimization and some methods to circumvent these issue (PDF - link opens in a new window)
Scientific Computing Seminar Series, Uppsala University, Sweden
- April 14th
H. S. Thorne
"Challenges from PDE-constrained optimization and some methods to circumvent these issue (link opens in a new window)"
ICFD Conference on Numerical Methods for Fluid Dynamics, Reading University.
- March 18th
J. A. Scott
A DAG-based sparse Cholesky solver for multicore architectures (link opens in a new window)
Birmingham University, UK
2009
- November 2nd
I. S. Duff
Exploiting sparsity in the solution phase for large sparse equations (link opens in a new window)
Sparse Day @ Berkeley Lab, LBNL, Berkeley, California.
- October 29th
I. S. Duff
Hybrid techniques in the solution of large scale problems (link opens in a new window)
SIAM Conference on Applied Linear Algebra 2009, Seaside, Monterey, California.
- October 29th
J. A. Scott
A DAG-based sparse Cholesky solver for multicore architectures (link opens in a new window)
CSC Workshop 2009, Seaside, Monterey, California.
- October 28th
I. S. Duff
Development and history of sparse direct methods (link opens in a new window)
SIAM Conference on Applied Linear Algebra 2009, Seaside, Monterey, California.
- October 26th
J. A. Scott
The importance of structure in algebraic preconditioners (link opens in a new window)
SIAM Conference on Applied Linear Algebra 2009, Seaside, Monterey, California.
- October 7th
J. K. Reid
"Coarrays in
Fortran 2008 (link opens in a new window)"
PGAS 2009, George Washington University.
- October 2nd
M. Arioli
"An introduction to HSL: Design of reliable software (PDF - link opens in a new window)"
CSC / NAG Autumn School
- July 16th
J. A. Scott
"Too large to handle directly? (PDF - link opens in a new window)"
Sparse Matrices for Scientific Computation, Coseners House, Abingdon.
- July 16th
J. K. Reid
"Direct solution of large sparse sets of equations on a multicore computer (PDF - link opens in a new window)"
Sparse Matrices for Scientific Computation, Coseners House, Abingdon.
- June 25th
J. A. Scott
"Exploiting mixed precision in the solution of sparse symmetric linear systems (PDF - link opens in a new window)"
23rd Biennial Conference on Numerical Analysis, Strathclyde University.
- June 24th
H. S. Dollar
"Solving trust-region and other regularised subproblems in optimization (PDF - link opens in a new window)"
23rd Biennial Conference on Numerical Analysis, Strathclyde University.
- June 24th
J. K. Reid
"On Aasen's tridiagonalization method (PDF - link opens in a new window)"
23rd Biennial Conference on Numerical Analysis, Strathclyde University.
- June 18th
M. Arioli
- "Linear regression and stopping criteria for the conjugate gradient method (PDF - link opens in a new window)"
Sparse Days at CERFACS 2009.
- June 18th
J. A. Scott
"A DAG-based sparse Cholesky solver for multicore architectures (PDF - link opens in a new window)"
Sparse Days at CERFACS 2009.
- April 13th
H. S. Dollar
"Projected Krylov methods and PDE-constrained
optimization (PDF - link opens in a new window)"
Advances and Perspectives on Numerical Methods for Saddle Point Problems, Banff International Research Station, Canada.
- March 31st
M. Arioli
"Numerical stability in advance scientific computing (PDF - link opens in a new window)"
INRIA Sophie Antipolis
- March 4th
J. K. Reid
"Development
and maintenance of HSL codes (PDF - link opens in a new window)"
Workshop on Experiences in Software Development within CSED, Daresbury.
- February 3rd
J. K. Reid and J. A. Scott
"Reducing
the Total Bandwidth of a Sparse Unsymmetric Matrix (PDF - link opens in a new window)"
Dagstuhl Seminar on Combinatorial Scientific Computing.
- February 3rd
J. A. Scott
"Fast AMD orderings for matrices with some dense rows (PDF - link opens in a new window)"
Dagstuhl Seminar on Combinatorial Scientific Computing.
2008
- January 16th
H. S. Dollar
"The problem with being dense and how to get around it (PDF - link opens in a new window)"
CASA Colloquium, Technical University of Eindhoven,
The Netherlands.
- March 31st
J. A. Scott
"On the development of out-of-core direct solvers (PDF - link opens in a new window)"
GAMM 2008, Bremen, Germany.
- April 8th
H. S. Dollar
"The challenges of PDE-constrained optimization (PDF - link opens in a new window)"
Copper Mountain Conference on Iterative Methods, Colorado.
- April 17th
J. A. Scott
"An introduction to the world of sparse direct solvers and the HSL
library (PDF - link opens in a new window)"
University of Nottingham.
- May 12th
H. S. Dollar
"The challenges of PDE-constrained optimization (PDF - link opens in a new window)"
SIAM Conference on Optimization, Boston.
- June 5th
M. Arioli
"Matrix square root and interpolation spaces (PDF - link opens in a new window)"
Householder Symposium XVII, Berlin.
- June 5th
J. A. Scott
"The world of (HSL) sparse direct solvers (PDF - link opens in a new window)"
Householder Symposium XVII, Berlin.
- June 5th
H. S. Dollar
"Fast AMD orderings for matrices with some dense rows (PDF - link opens in a new window)"
Householder Symposium XVII, Berlin.
- June 20th
M. Arioli
"Backward stability of FGMRES (PDF - link opens in a new window)"
Parallel Matrix Algorithms and Applications 2008, Neuchatel
- June 20th
J. D. Hogg
"A Fast Robust Sparse Mixed Precision Solver (PDF - link opens in a new window)"
Parallel Matrix Algorithms and Applications 2008, Neuchatel
- June 24th
M. Arioli
"Backward stability of FGMRES (PDF - link opens in a new window)"
Sparse Days 2008, CERFACS
- June 24th
M. Arioli
"Matrix square root and interpolation spaces (PDF - link opens in a new window)"
Sparse Days 2008, CERFACS
- June 24th
J. D. Hogg
"A Fast Robust Sparse Mixed Precision Solver (PDF - link opens in a new window)"
Sparse Days 2008, CERFACS
- July 16th
H. S. Dollar
"Symmetric iterative solvers for symmetric saddle-point problems (PDF - link opens in a new window)"
Computational Linear Algebra for Partial Differential Equations, Durham
- September 18th
H. S. Dollar
"The problem with being dense and how to get around it (PDF - link opens in a new window)"
Daresbury Laboratory Seminar
- September 23rd
M. Arioli
"Least-squares problems, normal equations, and
stopping criteria for the conjugate gradient method (PDF - link opens in a new window)"
Bath/RAL Day 2008, Bath
- September 23rd
J. D. Hogg
"A Fast Robust Sparse Mixed Precision Solver (PDF - link opens in a new window)"
Bath/RAL Day 2008, Bath
- November 5th
J. K. Reid
"Parallel
programming in Fortran with Coarrays (PDF - link opens in a new window)"
RAPS Workshop, ECMWF, Reading.
- November 12th
J. D. Hogg
"Mixed Precision Solution of Linear Systems (PDF - link opens in a new window)"
ERGO Seminar, University of Edinburgh
- Decemeber 4th
J. D. Hogg
"Cholesky factorizations for multicore systems (PDF - link opens in a new window)"
CMA Seminar, University of Oxford
- Decemeber 11th
H. S. Dollar
"Optimal Solvers for PDE-Constrained Optimization (PDF - link opens in a new window)"
OPTPDE 2008, Warsaw
2007
- February 17th
I.S. Duff
"Recent
developments in multifrontal methods (PDF - link opens in a new window)"
Combinatorial Scientific Computing (CSC07), Costa Mesa,
California.
- March 1st
C. Cartis
"Some
challenges in interior point methods for linear programming (PDF - link opens in a new window)"
CORMSIS seminar series, University of Southampton, UK.
- March 28th
I.S. Duff
"Recent
developments in multifrontal methods (PDF - link opens in a new window)"
Berkeley Lab Scientific Computing Workshop, LBNL, Berkeley,
California.
- March 28th
J.A. Scott
"A
virtual memory system for use with an out-of-core solver (PDF - link opens in a new window)"
Berkeley Lab Scientific Computing Workshop, LBNL, Berkeley,
California.
- March 30th
I.S. Duff
"Combining
direct and iterative methods for the solution of large systems in
different application areas (PDF - link opens in a new window)"
Stanford50, Stanford University, California.
- May 11th
J.A. Scott
"An
introduction to HSL and the solution of sparse linear systems (PDF - link opens in a new window)"
Department of Mathematics, University of Bath.
- June 26th
J.K. Reid
"Partial Solution of Full Symmetric Indefinite Linear Systems (PDF - link opens in a new window)"
22nd Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- June 26th
J.A. Scott
"The
performance of a new HSL out-of-core solver (PDF - link opens in a new window)"
22nd Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- June 27th
C. Cartis
"A new
perspective on the complexity of interior point methods for linear programming (PDF - link opens in a new window)"
22nd Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- June 27th
N. I. M. Gould
"Adaptive
cubic over-estimation methods for unconstrained optimization (PDF - link opens in a new window)"
22nd Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- June 28th
H. S. Dollar
Iterative solution of saddle-point systems with examples from PDE-constrained optimization (PDF - link opens in a new window)
22nd Biennial Conference on Numerical Analysis, Dundee, Scotland.
- June 28th
M. Arioli
GMRES preconditioned by a perturbed LDLT decomposition with static pivoting (PDF - link opens in a new window)
22nd Biennial Conference on Numerical Analysis, Dundee, Scotland.
- July 11th
H. S. Dollar
Iterative solution of saddle-point systems with examples from PDE-constrained optimization (PDF - link opens in a new window)"
2007 International Conference on Preconditioning Techniques,
Toulouse,
France.
- July 16th
I. S. Duff
"Developments
in matching and scaling algorithms (PDF - link opens in a new window)"
6th International Congress on Industrial and Applied
Mathematics, Zurich,
Switzerland.
- July 16th
C. Cartis
"Adaptive
cubic overestimation methods for unconstrained optimization (PDF - link opens in a new window)"
6th International Congress on Industrial and Applied
Mathematics, Zurich,
Switzerland.
- July 20th
H. S. Dollar
"Iterative
linear algebra for constrained optimization (PDF - link opens in a new window)"
6th International Congress on Industrial and Applied
Mathematics, Zurich,
Switzerland.
- July 20th
H. S. Dollar
"Iterative
solution of saddle-point systems with examples from PDE-constrained
optimization (PDF - link opens in a new window)"
6th International Congress on Industrial and Applied
Mathematics, Zurich,
Switzerland.
- August 23rd
J. A. Scott
"On
the direct solution of very large
sparse linear systems using out-of-core techniques (PDF - link opens in a new window)"
Computational Methods with Applications, Harrachov, Czech
Republic.
- August 24th
M. Arioli
GMRES preconditioned by a perturbed LDLT decomposition with static pivoting (PDF - link opens in a new window)
Computational Methods with Applications, Harrachov, Czech Republic.
- September 13th
H. S. Dollar
"Iterative
solution of saddle-point systems with examples from PDE-constrained
optimization (PDF - link opens in a new window)"
First IMA Conference on Numerical Linear Algebra and
Optimisation,
Birmingham.
- September 14th
J. K. Reid and J. A. Scott
"Partial
Solution of Full Symmetric Indefinite Linear Systems (PDF - link opens in a new window)"
First IMA Conference on Numerical Linear Algebra and
Optimisation, Birmingham.
- September 14th
M. Arioli
GMRES preconditioned by a perturbed LDLT decomposition with static pivoting (PDF - link opens in a new window)
First IMA Conference on Numerical Linear Algebra and Optimization, Birmingham.
- September 14th
J. A. Scott
"Solving
large sparse linear systems out of core (PDF - link opens in a new window)"
First IMA Conference on Numerical Linear Algebra and
Optimisation,
Birmingham.
- September 25th
J. A. Scott
"Solving
large sparse linear systems out of core (PDF - link opens in a new window)"
Bath-RAL Numerical Analysis Day, Rutherford Appleton Laboratory, England.
- September 25th
H. S. Dollar
"Iterative solution of PDE-constrained optimization problems (PDF - link opens in a new window)"
Bath-RAL Numerical Analysis Day, Rutherford Appleton Laboratory, England.
- October 26th
H. S. Dollar
"Iterative solution of PDE-constrained optimization problems (PDF - link opens in a new window)"
Numerical Analysis and Scientific Computing Seminars, University of Manchester, England.
2006
- January 9-13th
N. I. M. Gould
Slides
and lecture notes (link opens in a new window)
University of Edinburgh Operations Research MSc course on
Numerical Optimization.
- January-March
N. I. M. Gould
Slides
and lecture notes (link opens in a new window)
Oxford University Part C course on Continuous Optimization.
- June 15th
N. I. M. Gould
"Finding
a well-centred point for a set of polyhedral constraints (PDF - link opens in a new window)"
Sparse Days, CERFACS, Toulouse, France.
- June 16th
H. S. Dollar
"Implicit-factorization
constraint preconditioners and permutations (PDF - link opens in a new window)"
Sparse Days, CERFACS, Toulouse, France.
- June 16th
M. Arioli
"A
note on GMRES preconditioned by a perturbed LDLT decomposition with
static pivoting (PDF - link opens in a new window)"
Sparse Days, CERFACS, Toulouse, France.
- June 20th
J. A. Scott
"The
design of an out-of-core multifrontal solver for the 21st century (PDF - link opens in a new window)"
PARA'06, Umea, Sweden.
- July 24th
J. A. Scott
"Refinement
algorithms for bandwidth reduction (PDF - link opens in a new window)"
GAMM-SIAM Conference on Applied Linear Algebra, Dusseldorf,
Germany.
- July 25th
M. Arioli
"Stopping
criteria in the context of finite-element
discretization (PDF - link opens in a new window)"
GAMM-SIAM Conference on Applied Linear Algebra, Dusseldorf,
Germany.
- July 25th
H. S. Dollar
"Constraint
style preconditioners for regularized saddle point problems (PDF - link opens in a new window)"
GAMM-SIAM Conference on Applied Linear Algebra, Dusseldorf,
Germany.
- August 1st
C. Cartis
"A new perspective on the complexity of interior point methods for
linear programming (PDF - link opens in a new window)"
International Symposium on Mathematical Programming, Rio de
Janeiro, Brazil
- September 5th
M. Arioli
"Stopping
criteria for Krylov methods and finite-element approximation of
variational problems (PDF - link opens in a new window)"
ECCOMAS CFD 2006 September 5-8, 2006
Egmond aan Zee, The Netherlands.
- September 26th
C. Cartis
"Finding
a well-centred
point within a polyhedron (PDF - link opens in a new window)"
International Conference on Numerical Analysis and Optimization,
Beijing, China
- September 27th
N. I. M. Gould
"SRLP-EQP
filter methods for constrained optimization (PDF - link opens in a new window)"
International Conference on Numerical Analysis and Optimization,
Beijing, China
- November 2nd
J. A. Scott
"HSL
and its out-of-core solver (PDF - link opens in a new window)"
Institute of Computer Science, Academy of Sciences of the Czech
Republic.
- November 15th
H. S. Dollar
"Iterative
linear algebra for constrained optimization (PDF - link opens in a new window)"
ERGO Seminar, University of Edinburgh, Scotland.
- November 9th
M. Arioli
"The
role of finite dimensional Hilbert spaces and their duals in the design
of Krylov subspaces methods (PDF - link opens in a new window)"
Applied Mathematics Dep., University of Leicester.
- December 5th
H. S. Dollar
"Solving
saddle-point problems at a gallop (PDF - link opens in a new window)"
Second Internal Numerical Analysis Conference, University of
Oxford.
2005
- January 17-20th
N. I. M. Gould
Slides and lecture
notes (link opens in a new window)
University of Edinburgh Operations Research MSc course on
Numerical Optimization.
- January 21st
J.A. Scott
"HSL
and the solution of sparse linear systems (PDF - link opens in a new window)"
EPCC, The University of Edinburgh, Scotland.
- January 21st
J.A. Scott
"Which
sparse direct solver? (PDF - link opens in a new window)"
The University of Edinburgh, Scotland.
- January-February
N. I. M. Gould
Slides and
lecture notes (link opens in a new window)
Oxford University MSc course on Numerical Optimization.
- February 3rd
J.A. Scott
"HSL
and parallel sparse direct solvers"
University of Basel, Switzerland.
- February 17th
N. I. M. Gould
"To
SQP or not to SQP - modern alternatives in large-scale nonlinear
optimization"
Oxford University Computing Laboratory, England.
- May 17th
N. I. M. Gould
"Useful
linear algebra for large-scale nonlinear optimization"
SIAM Conference on Optimization, Stockholm, Sweden
- May 23rd
M. Arioli
"Block
partitioned matrices, inf-sup conditions, and stopping criteria (PDF - link opens in a new window)"
Householder Symposium XVI, Seven Springs Mountain Resort,
Pennsylvania, USA.
- May 24th
J. A. Scott
"On
solving large sparse linear systems out-of-core"
Householder Symposium XVI, Seven Springs Mountain Resort,
Pennsylvania, USA.
- June 21st
J. A. Scott
"Reducing
the total bandwidth of a sparse unsymmetric matrix"
Second International Workshop on Combinatorial Scientific
Computing, CERFACS, Toulouse, France.
- June 27th
J. A. Scott
"On
solving large sparse linear systems out-of-core"
21st Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- June 29th
N. I. M. Gould
"Finding
a well-centred point for a set of convex polyhedral constraints"
21st Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- June 29th
M. Arioli
"Stopping
criteria for Krylov methods applied to the solution of mixed
finite-element problems (PDF - link opens in a new window)"
21st Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- August 16th
N. I. M. Gould
"Finding
a well-centred point within a polyhedron"
Optbridge 2005, Cambridge University, England.
- September 27th
N. I. M. Gould
"SRLP-EQP
filter methods for constrained optimization"
4th Bath-RAL Numerical Analysis Day, Rutherford Appleton
Laboratory, England.
- September 27th
J. K. Reid
"Reducing
the Total Bandwidth of a Sparse Unsymmetric Matrix (PDF - link opens in a new window)"
4th Bath-RAL Numerical Analysis Day, Rutherford Appleton
Laboratory, England.
- October 3rd
N. I. M. Gould
"Optimization
- a brief overview"
Mathematical Interdisciplinary Research Day on Optimization,
University of Warwick, England.
- October 12th
N. I. M. Gould
"The
(ir)resistible rise of sequential quadratic programming methods for
nonlinear optimization"
University of Manchester, England.
- November 3rd
J. K. Reid
"Solving
large sparse symmetric linear systems out of core (PDF - link opens in a new window)"
Oxford University Computing Laboratory, England.
- November 18th
N. I. M. Gould
"Requirements for automatic differentiation in numerical
optimization"
(PostScript,
PDF (PDF - link opens in a new window))
2nd European Workshop on Automatic Differentiation, Cranfield
University at Shrivenham, England.
2004
-
February 6th-27th
M. Arioli
"
The
role of backward stability and dual spaces in the design of iterative
methods (PDF - link opens in a new window)"
Lectures of the Course on Iterative Methods, ENSEEIHT, Toulouse,
France.
- February 25th
J.A. Scott
"Bordered
block diagonal forms for parallel sparse direct solvers"
SIAM Conference on Parallal Processing for Scientific Computing.
- February 25th
N. I. M. Gould
"An interior-point l1-penalty method for nonlinear optimization"
Judge Institute of Management, University of Cambridge, England
- March 26th
N. I. M. Gould
"A
filter-trust-region method for unconstrained optimization"
GAMM 75th annual meeting, Dresden, Germany
- March 29th
N. I. M. Gould
"An
interior-point l1-penalty method for nonlinear optimization"
European Conference on Computational Optimization, Dresden,
Germany
- April 14th
N. I. M. Gould
"An
interior-point l1-penalty method for nonlinear optimization"
University of Edinburgh, Scotland.
- April 15th-21st
N. I. M. Gould
Slides
and lecture notes (link opens in a new window)
University of Edinburgh Operations Research MSc course on
Numerical Optimization.
- May 3rd-14th
M. Arioli
"Problemi
di stabilita' numerica nel calcolo scientifico avanzato (PDF - link opens in a new window)"
University of Udine, course on Stability in Advanced Scientific
Computing.
- May 13th
N. I. M. Gould
"An
interior-point l1-penalty method for nonlinear optimization"
Workshop on Large Scale Nonlinear and Semidefinite Programming,
University of Waterloo, Ontario, Canada.
- May 26th
M. Arioli
"Chebyshev-based
two-stage iterative method as an alternative to the direct solution of
linear systems (PDF - link opens in a new window)"
Iterative methods, preconditioning and numerical PDE's (IMET
2004), Prague, Czech Republic.
- June 3rd
J.A. Scott
"A
numerical evaluation of sparse solvers for the direct solution
of large sparse symmetric linear systems (PDF - link opens in a new window)"
CERFACS Sparse Days Meeting, June 2004
- June 28th
N. I. M. Gould
"Constraint
preconditioners for large-scale nonlinear optimization"
Workshop on "Large-scale Nonlinear Optimization", Erice, Sicily,
Italy.
- August 13th
N. I. M. Gould
"Nonlinear
scaling for bound-constrained optimization"
Optbridge 2004, Oxford University, England.
- September 7th
N. I. M. Gould
"Constraint
preconditioners for large-scale nonlinear optimization"
Mathematics and Computational Science Division, Argonne National
Laboratory,
Illinois, USA.
- October 1st
J. A. Scott
"Which
sparse direct symmetric solver? (PDF - link opens in a new window)"
Bath-RAL Numerical Analysis Day, University of Bath, England.
- October 1st
M. Arioli
"A
Chebyshev-based two-stage iterative method as an alternative to the
direct solution of linear systems (PDF - link opens in a new window)"
Bath-RAL Numerical Analysis Day, University of Bath, England.
- October 13th
M. Arioli
"Problemi
di accuratezza relativi alla soluzione di sistemi sottodeterminati (PDF - link opens in a new window)"
Invited talk in honour of A. Laratta, University of Modena.
- December 7th
J.A. Scott
"Which
sparse direct solver? (PDF - link opens in a new window)"
Department of Mathematics, The University of British Columbia,
Vancouver, Canada.
2003
- January 11th
N. I. M. Gould
"SQP,
SLP and Interior-Point methods for large-scale nonlinear programming"
IMA Workshop on Optimization in
Simulation-Based Models, Minneapolis, Minnesota, USA.
- January-February
N. I. M. Gould
Slides and
lecture notes (link opens in a new window)
Oxford University MSc course on Numerical Optimization.
- April
N. I. M. Gould
Slides
and lecture notes (link opens in a new window)
University of Edinburgh Operations Research MSc course on
Numerical Optimization.
- June
J. A. Scott
"A
numerical evaluation of HSL packages for the direct solution of
large sparse symmetric linear systems"
Poster for Sparse Days at St Girons, France and talk at 20th
Biennial Conference on Numerical Analysis, Dundee, Scotland.
- June 25th
N. I. M. Gould
"An
interior-point l1-penalty method for nonlinear optimization (PDF - link opens in a new window)"
20th Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- June 25th
M. Arioli
"Backward
error analysis and stopping criteria for Krylov space method (PDF - link opens in a new window)"
20th Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- September 24th
M. Arioli
"Backward
error
analysis and stopping criteria for Krylov space method"
Numerical Linear Algebra and its Applications Workshop,
Monopoli, Bari, Italy.
2002
-
January 15th
I. S. Duff
"
Numerical
Linear Algebra, Sparse Matrices, and Parallel Algorithms: Introduction"
Summer School, ANU Canberra.
- January 15th
I. S. Duff
"Numerical
Linear Algebra, Sparse Matrices, and Parallel Algorithms: Frontal
methods"
Summer School, ANU Canberra.
- January 16th
I. S. Duff
"Numerical
Linear Algebra, Sparse Matrices, and Parallel Algorithms: Multifrontal
Methods"
Summer School, ANU Canberra.
- January 16th
I. S. Duff
"Numerical
Linear Algebra, Sparse Matrices, and Parallel Algorithms: Multifrontal
Methods ... distributed memory implementation"
Summer School, ANU Canberra.
- January 24th
N. I. M. Gould
"The
state-of-the-art in numerical methods for quadratic programming"
GAMS Seminar, Leipzig, Germany.
- May 3rd
N. I. M. Gould
"Numerical
methods for quadratic programming"
University of Essex, England.
- May 20th
N. I. M. Gould
"The
GALAHAD software library for large-scale nonlinear optimization"
SIAM Conference on Optimization, Toronto, Canada
- June 20th
J. A. Scott
"A
parallel direct solver for large sparse unsymmetric linear systems"
Householder Symposium XV, Peebles, Scotland.
- July 15-19th
N. I. M. Gould
"5
lectures on nonlinear optimization"
10th EPSRC Numerical Analysis Summer School, Durham, England.
- August 6th
J. A. Scott
"HSL
parallel direct solvers for large sparse linear systems"
Computational Linear Algebra with Applications, Milovy, Czech
Republic.
- August 6th
M. Arioli
"A
Null-Space Method Approach in Solving Darcy's Equations (PDF - link opens in a new window)"
Computational Linear Algebra with Applications, Milovy, Czech
Republic.
- October 14th
N. I. M. Gould
"How
large is "large" for nonlinear programming?"
University of Edinburgh, Scotland.
- October 30th
J. A. Scott
"HSL
and a new parallel sparse direct solver"
AspenWorld 2002, Washington D.C.
- November 4th
N. I. M. Gould
"Sequential
linear programming for huge optimization problems"
Bath-RAL Numerical Analysis Day, University of Bath, England.
- November 4th
J. A. Scott
"HSL
parallel direct solvers for large sparse linear systems"
Bath-RAL Numerical Analysis Day, University of Bath, England.
- November 8th
I. S. Duff
"Direct
methods for sparse matrices"
Tutorial in Neuchatel, Switzerland.
- November 20th
J. A. Scott
"HSL
and the solution of sparse systems"
Seminar at the University of Kingston, London.
2001
-
January 22nd
N. I. M. Gould
"
The
state-of-the-art in numerical methods for quadratic programming"
1st International Conference on Industrial and Applied
Mathematics in Indian Subcontinent, Amritsar, India.
- May-June
N. I. M. Gould
Slides and
lecture notes (link opens in a new window)
Oxford University MSc course on Numerical Optimization.
- June 13th
J. A. Scott
"A
multilevel algorithm for wavefront reduction"
Sparse Days at CERFACS, Toulouse, France.
- June 28th
N. I. M. Gould
"The
state-of-the-art in numerical methods for quadratic programming"
19th Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- June 28th
J. A. Scott
"A
multilevel algorithm for wavefront reduction"
19th Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- October 16th
I. S. Duff
"Techniques,
algorithms, and software for the direct solution of large sparse
linear systems (Powerpoint presentation - link opens in a new window)"
Powerpoint file
Graduate Lecture Notes, Oxford University.
- October 19th
J. A. Scott
"Frontal
methods"
Graduate Lecture Notes, Oxford University.
- October 23rd
I. S. Duff
"Techniques,
algorithms, and software for the direct solution of large sparse
linear systems .. Multifrontal methods"
Graduate Lecture Notes, Oxford University.
- October 26th
I. S. Duff
"Techniques,
algorithms, and software for the direct solution of large sparse
linear systems .. MUMPS and comments on parallel software"
Graduate Lecture Notes, Oxford University.
- October 26th
J. A. Scott
"Parallel
direct methods"
Graduate Lecture Notes, Oxford University.
- December 11th
N. I. M. Gould
"GALAHAD
- a library of packages for large-scale nonlinear optimization"
ICFD Workshop on Optimisation, Oxford University.
2000
1999
-
June 15th
K. A. Y. Meerbergen
"
The
solution of quadratic eigenvalue problems"
Householder Symposium XIV, Whistler, British Columbia, Canada.
- June 15th
Jennifer Scott
"
Row ordering for frontal solvers"
Householder Symposium XIV, Whistler, British Columbia, Canada.
- July 1st
N. I. M. Gould
"An
iterative active-set method for large-scale
non-convex quadratic programming"
18th Biennial Conference on Numerical Analysis, Dundee,
Scotland.
- July 16th
N. I. M. Gould
"SQP
methods for large-scale nonlinear programming"
19th IFIP TC7 Conference on System Modelling
and Optimization, Cambridge, England.
- October 18th
K. A. Y. Meerbergen
"The
rational Lanczos method for the Hermitian eigenvalue problem"
Warwick, England.
- October 28th
N. I. M. Gould
"Numerical
methods for large-scale non-convex quadratic programming"
1st Workshop on Nonlinear Optimization: ``Interior-Point and
Filter Methods'', Coimbra, Portugal.
1998