1 #include <../src/tao/bound/impls/bqnk/bqnk.h> 2 #include <petscksp.h> 3 /*MC 4 TAOBQNKTR - Bounded Quasi-Newton-Krylov Trust Region 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_` 9 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") 15 16 Level: beginner 17 M*/ 18 PETSC_EXTERN PetscErrorCode TaoCreate_BQNKTR(Tao tao) 19 { 20 PetscErrorCode ierr; 21 22 PetscFunctionBegin; 23 ierr = TaoCreate_BQNK(tao);CHKERRQ(ierr); 24 tao->ops->solve = TaoSolve_BNTR; 25 PetscFunctionReturn(0); 26 } 27