SNESComputeFunctionDefaultNPC

Compute the residual by applying the attached nonlinear preconditioner when one is present, otherwise defer to SNESComputeFunction()

Synopsis

#include "petscsnes.h"  
PetscErrorCode SNESComputeFunctionDefaultNPC(SNES snes, Vec X, Vec F)

Collective

Input Parameters

• snes - the SNES context

• X - the current iterate

Output Parameter

• F - the residual vector produced by the nonlinear preconditioner (or the standard function evaluation)

Note

Used as the residual callback for SNESMF when a nonlinear preconditioner is set on the outer SNES.

See Also

SNES: Nonlinear Solvers, SNES, SNESSetNPC(), SNESApplyNPC(), SNESComputeFunction(), SNESGetNPCFunction()

Level

developer

Location

src/snes/interface/snespc.c

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Index of all SNES routines
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