Actual source code: bqnktl.c

petsc-3.11.3 2019-06-26
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  1:  #include <../src/tao/bound/impls/bqnk/bqnk.h>

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

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

 16:   Level: beginner
 17: M*/
 18: PETSC_EXTERN PetscErrorCode TaoCreate_BQNKTL(Tao tao)
 19: {
 21: 
 23:   TaoCreate_BQNK(tao);
 24:   tao->ops->solve = TaoSolve_BNTL;
 25:   return(0);
 26: }