petsc-master 2017-01-18
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Newton based nonlinear solver that uses a trust region

Options Database

-snes_trtol <tol> Trust region tolerance- . -snes_tr_mu <mu>
-snes_tr_eta <eta>- . -snes_tr_sigma <sigma>
-snes_tr_delta0 <delta0> - initial size of the trust region is delta0*norm2(x)
-snes_tr_delta1 <delta1>- . -snes_tr_delta2 <delta2>
-snes_tr_delta3 <delta3>- The basic algorithm is taken from "The Minpack Project", by More', Sorensen, Garbow, Hillstrom, pages 88-111 of "Sources and Development of Mathematical Software", Wayne Cowell, editor.

See Also

SNESCreate(), SNES, SNESSetType(), SNESNEWTONLS, SNESSetTrustRegionTolerance()

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