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 12: .seealso: `Tao`, `TaoType`, `TAOBNK`, `TAOBQNKTR`, `TAOBQNKTL` 13: M*/ 14: PETSC_EXTERN PetscErrorCode TaoCreate_BQNKLS(Tao tao) 15: { 16: TAO_BNK *bnk; 17: TAO_BQNK *bqnk; 19: PetscFunctionBegin; 20: PetscCall(TaoCreate_BQNK(tao)); 21: bnk = (TAO_BNK *)tao->data; 22: bnk->update_type = BNK_UPDATE_STEP; 23: bqnk = (TAO_BQNK *)bnk->ctx; 24: bqnk->solve = TaoSolve_BNLS; 25: PetscFunctionReturn(PETSC_SUCCESS); 26: }