TAOBNTL — PETSc 3.24.5 documentation

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# TAOBNTL

Bounded Newton Trust Region method with line-search fall-back for nonlinear minimization with bound constraints.

## Options Database Keys

- -tao_bnk_max_cg_its - maximum number of bounded conjugate-gradient iterations taken in each Newton loop . -tao_bnk_init_type - trust radius initialization method (“constant”, “direction”, “interpolation”) . -tao_bnk_update_type - trust radius update method (“step”, “direction”, “interpolation”)

- -tao_bnk_as_type - active-set estimation method (“none”, “bertsekas”)

## Developer Note

One should control the maximum number of cg iterations through the standard pc_max_it option not with a special ad hoc option

## Level

beginner

## Location

src/tao/bound/impls/bnk/bntl.c

Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages