SNESJacobianFn

A prototype of a SNES Jacobian evaluation function that would be passed to SNESSetJacobian()

Synopsis

PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(SNESJacobianFn)(SNES snes, Vec u, Mat Amat, Mat Pmat, void *ctx);

Calling Sequence

• snes - the SNES context obtained from SNESCreate()

• u - input vector

• Amat - (approximate) Jacobian matrix

• Pmat - matrix used to construct the preconditioner, often the same as Amat

• ctx - [optional] user-defined context for matrix evaluation routine

See Also

SNES: Nonlinear Solvers, SNES, SNESSetJacobian(), SNESGetJacobian(), SNESFunctionFn, SNESNGSFn

Level

beginner

Location

include/petscsnes.h

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