TAOCG#

Nonlinear conjugate gradient method is an extension of the nonlinear conjugate gradient solver for nonlinear optimization.

Options Database Keys#

-tao_cg_eta - restart tolerance
-tao_cg_type <taocg_type> - cg formula
-tao_cg_delta_min - minimum delta value
-tao_cg_delta_max - maximum delta value

Notes#

CG formulas are#

“fr” - Fletcher-Reeves “pr” - Polak-Ribiere “prp” - Polak-Ribiere-Plus “hs” - Hestenes-Steifel “dy” - Dai-Yuan

Level#

beginner

Location#

src/tao/unconstrained/impls/cg/taocg.c

Examples#

src/tao/unconstrained/tutorials/eptorsion2.c
src/tao/unconstrained/tutorials/eptorsion2f.F90
src/tao/unconstrained/tutorials/minsurf2.c

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