xref: /petsc/src/tao/bound/impls/bqnk/bqnktl.c (revision 3850be85d423de4139c8d950c0ca17adc39e763f)

#include <../src/tao/bound/impls/bqnk/bqnk.h>

/*MC
  TAOBQNKTL - Bounded Quasi-Newton-Krylov Trust-region with Line-search fallback, for nonlinear
              minimization with bound constraints. This method approximates the Hessian-vector
              product using a limited-memory quasi-Newton formula, and iteratively inverts the
              Hessian with a Krylov solver. The quasi-Newton matrix and its settings can be
              accessed via the prefix `-tao_bqnk_`

  Options Database Keys:
  + -tao_bqnk_max_cg_its - maximum number of bounded conjugate-gradient iterations taken in each Newton loop
  . -tao_bqnk_init_type - trust radius initialization method ("constant", "direction", "interpolation")
  . -tao_bqnk_update_type - trust radius update method ("step", "direction", "interpolation")
  - -tao_bqnk_as_type - active-set estimation method ("none", "bertsekas")

  Level: beginner
M*/
PETSC_EXTERN PetscErrorCode TaoCreate_BQNKTL(Tao tao)
{
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = TaoCreate_BQNK(tao);CHKERRQ(ierr);
  tao->ops->solve = TaoSolve_BNTL;
  PetscFunctionReturn(0);
}