Papers

• Optimal weighted matchings for rank-deficient sparse matrices

  JD Hogg; JA Scott;

  Type: Report

  Published in: Rutherford Appleton Laboratory Preprints (- 2022)

• Additive Schwarz with variable weights

  C Grief; T Rees; DB Szyld;

  Type: Report

  Published in: Rutherford Appleton Laboratory Technical Reports (- 2022)

• A fast method for binary programming using first-order derivatives, with application to topology optimization with buckling constraints

  PA Browne; C Budd; NIM Gould; HA Kim; JA Scott;

  Type: Journal Article

  Published in: International Journal for Numerical Methods in Engineering

• Parallel computation of entries of A inverse

  PR Amestoy; IS Duff; J-Y L'Excellent; F-H Rouet;

  Type: Report

  Published in: Rutherford Appleton Laboratory Preprints (- 2022)

• On the effects of scaling on the performance of Ipopt

  JD Hogg; JA Scott;

  Type: Report

  Published in: Rutherford Appleton Laboratory Preprints (- 2022)

• Orderings governed by numerical factorization

  IS Duff; M Arioli;

  Type: Presentation

• A study of pivoting strategies for tough sparse indefinite systems

  JD Hogg; JA Scott;

  Type: Report

  Published in: Rutherford Appleton Laboratory Technical Reports (- 2022)

• Performance of linear solvers in Interior Point Methods

  JD Hogg; JA Scott;

  Type: Presentation

• A multi-preconditioned GMRES algorithm

  T Rees; C Greif; DB Szyld;

  Type: Presentation

• Improving the performance of direct solvers for sparse symmetric indefinite linear systems

  JA Scott; JD Hogg;

  Type: Presentation

• On the complexity of the steepest-descent with exact linesearches

  C Cartis; NIM Gould; PL Toint;

  Type: Report

  Published in: Rutherford Appleton Laboratory Technical Reports (- 2022)

• MPGMRES : a generalized minimum residual method with multiple preconditioners

  C Grief; T Rees; DB Szyld;

  Type: Report

  Published in: Rutherford Appleton Laboratory Preprints (- 2022)

• Achieving bit compatibility in sparse direct solvers

  JD Hogg; JA Scott;

  Type: Report

  Published in: Rutherford Appleton Laboratory Preprints (- 2022)

• Chebychev acceleration of iterative refinement

  JA Scott; M Arioli;

  Type: Presentation

• Finding weighted matchings for singular sparse symmetric matrices

  JA Scott; JD Hogg;

  Type: Presentation

• Achieving bit-compatibility in a sparse direct symmetric solver

  JA Scott;

  Type: Presentation

• A multi-preconditioned GMRES algorithm

  T Rees; C Greif; DB Szyld; S MacLachlan;

  Type: Presentation

• How much patience do you have? A worst-case perspective on smooth nonconvex optimization

  C Cartis; NIM Gould; PL Toint;

  Type: Report

  Published in: Rutherford Appleton Laboratory Technical Reports (- 2022)

• On the Oracle Complexity of First-Order and Derivative-Free Algorithms for Smooth Nonconvex Minimization

  C Cartis; NIM Gould; PL Toint;

  Type: Journal Article

  Published in: SIAM Journal on Optimization

• An efficient analyse phase for element problems

  J Hogg; J Scott;

  Type: Journal Article

  Published in: Numerical Linear Algebra with Applications

• On the evaluation complexity of cubic regularization methods for potentially rank-deficient nonlinear least-squares problems and its relevance to constrained nonlinear optimization

  C Cartis; NIM Gould; PL Toint;

  Type: Report

  Published in: Rutherford Appleton Laboratory Technical Reports (- 2022)

• Preconditioners based on strong subgraphs

  IS Duff; K Kaya;

  Type: Presentation

• New parallel sparse direct solvers for engineering applications

  J Hogg; JA Scott;

  Type: Report

  Published in: Rutherford Appleton Laboratory Preprints (- 2022)

• Numerical Analysis Group Progress Report January 2010 - December 2011

  JA Scott;

  Type: Report

  Published in: Rutherford Appleton Laboratory Technical Reports (- 2022)

• A branch and bound algorithm for the global optimization of Hessian Lipschitz continuous functions

  JM Fowkes; NIM Gould; CL Farmer;

  Type: Journal Article

  Published in: Journal of Global Optimization