Actual source code: bqnkls.c

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

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

 10:   Level: beginner
 11: .seealso TAOBNK, TAOBQNKTR, TAOBQNKTL
 12: M*/
 13: PETSC_EXTERN PetscErrorCode TaoCreate_BQNKLS(Tao tao)
 14: {
 15:   TAO_BNK        *bnk;
 16:   TAO_BQNK       *bqnk;

 18:   TaoCreate_BQNK(tao);
 19:   bnk = (TAO_BNK*)tao->data;
 20:   bnk->update_type = BNK_UPDATE_STEP;
 21:   bqnk = (TAO_BQNK*)bnk->ctx;
 22:   bqnk->solve = TaoSolve_BNLS;
 23:   return 0;
 24: }