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 89fa2b5dcSStefano Zampini prefix `-tao_bqnk_`. For options database, see TAOBNK 93850be85SAlp Dener 103850be85SAlp Dener Level: beginner 11db781477SPatrick Sanan .seealso `TAOBNK`, `TAOBQNKTR`, `TAOBQNKTL` 123850be85SAlp Dener M*/ 13*d71ae5a4SJacob Faibussowitsch PETSC_EXTERN PetscErrorCode TaoCreate_BQNKLS(Tao tao) 14*d71ae5a4SJacob Faibussowitsch { 15e0ed867bSAlp Dener TAO_BNK *bnk; 16414d97d3SAlp Dener TAO_BQNK *bqnk; 17e0ed867bSAlp Dener 18e0ed867bSAlp Dener PetscFunctionBegin; 199566063dSJacob Faibussowitsch PetscCall(TaoCreate_BQNK(tao)); 20e0ed867bSAlp Dener bnk = (TAO_BNK *)tao->data; 21e0ed867bSAlp Dener bnk->update_type = BNK_UPDATE_STEP; 22414d97d3SAlp Dener bqnk = (TAO_BQNK *)bnk->ctx; 23414d97d3SAlp Dener bqnk->solve = TaoSolve_BNLS; 24e0ed867bSAlp Dener PetscFunctionReturn(0); 25e0ed867bSAlp Dener } 26