1e0ed867bSAlp Dener #include <../src/tao/bound/impls/bqnk/bqnk.h> 2e0ed867bSAlp Dener 33850be85SAlp Dener /*MC 43850be85SAlp Dener TAOBQNKLS - Bounded Quasi-Newton-Krylov Line Search method for nonlinear minimization with 53850be85SAlp Dener bound constraints. This method approximates the Hessian-vector product using a 63850be85SAlp Dener limited-memory quasi-Newton formula, and iteratively inverts the Hessian with a 73850be85SAlp Dener Krylov solver. The quasi-Newton matrix and its settings can be accessed via the 8*9fa2b5dcSStefano Zampini prefix `-tao_bqnk_`. For options database, see TAOBNK 93850be85SAlp Dener 103850be85SAlp Dener Level: beginner 11*9fa2b5dcSStefano Zampini .seealso TAOBNK, TAOBQNKTR, TAOBQNKTL 123850be85SAlp Dener M*/ 13e0ed867bSAlp Dener PETSC_EXTERN PetscErrorCode TaoCreate_BQNKLS(Tao tao) 14e0ed867bSAlp Dener { 15e0ed867bSAlp Dener TAO_BNK *bnk; 16414d97d3SAlp Dener TAO_BQNK *bqnk; 17e0ed867bSAlp Dener PetscErrorCode ierr; 18e0ed867bSAlp Dener 19e0ed867bSAlp Dener PetscFunctionBegin; 20e0ed867bSAlp Dener ierr = TaoCreate_BQNK(tao);CHKERRQ(ierr); 21e0ed867bSAlp Dener bnk = (TAO_BNK*)tao->data; 22e0ed867bSAlp Dener bnk->update_type = BNK_UPDATE_STEP; 23414d97d3SAlp Dener bqnk = (TAO_BQNK*)bnk->ctx; 24414d97d3SAlp Dener bqnk->solve = TaoSolve_BNLS; 25e0ed867bSAlp Dener PetscFunctionReturn(0); 26e0ed867bSAlp Dener } 27