TAOLMVM#

Limited Memory Variable Metric method is a quasi-Newton optimization solver for unconstrained minimization. It solves the Newton step Hkdk = - gk using an approximation Bk in place of Hk, where Bk is composed using the BFGS update formula. A More-Thuente line search is then used to computed the steplength in the dk direction

Options Database Keys#

  • -tao_lmvm_recycle - enable recycling LMVM updates between TaoSolve() calls

  • -tao_lmvm_no_scale - (developer) disables diagonal Broyden scaling on the LMVM approximation

Level#

beginner

Location#

src/tao/unconstrained/impls/lmvm/lmvm.c

Examples#

src/tao/unconstrained/tutorials/eptorsion1.c.html
src/tao/unconstrained/tutorials/eptorsion3.c.html
src/tao/unconstrained/tutorials/minsurf1.c.html
src/tao/unconstrained/tutorials/rosenbrock1.c.html
src/tao/unconstrained/tutorials/rosenbrock1f.F90.html
src/tao/unconstrained/tutorials/rosenbrock2.c.html


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Index of all Tao routines
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Index of all manual pages