petsc-3.9.4 2018-09-11
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TAOBNCG

Bound-constrained Nonlinear Conjugate Gradient method.

Options Database Keys

-tao_BNCG_eta <r> - restart tolerance
-tao_BNCG_type <taocg_type> - cg formula
-tao_BNCG_delta_min <r> - minimum delta value
-tao_BNCG_delta_max <r> - 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/bound/impls/bncg/bncg.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages