SNESNewtonTRGetPreCheck

Gets the pre-check function

Synopsis

#include "petscsnes.h"   
PetscErrorCode SNESNewtonTRGetPreCheck(SNES snes, PetscErrorCode (**func)(SNES snes, Vec X, Vec Y, PetscBool *changed, PetscCtx ctx), PetscCtxRt ctx)

Not Collective

Input Parameter

• snes - the nonlinear solver context

Output Parameters

• func - [optional] function evaluation routine, for the calling sequence see SNESNewtonTRPreCheck()

• ctx - [optional] user-defined context for private data for the function evaluation routine (may be NULL)

Calling sequence of func

• snes - the nonlinear solver object

• X - the current solution value

• Y - the tentative update step

• changed - output, flag indicating Y has been changed by the pre-check

• ctx - the optional application context

See Also

SNES: Nonlinear Solvers, SNESNEWTONTR, SNESNewtonTRSetPreCheck(), SNESNewtonTRPreCheck()

Level

intermediate

Location

src/snes/impls/tr/tr.c

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Index of all SNES routines
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Index of all manual pages