petsc-3.7.7 2017-09-25
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TSComputeRHSJacobian

 Computes the Jacobian matrix that has been set with TSSetRHSJacobian().

Synopsis

#include "petscts.h"  
PetscErrorCode  TSComputeRHSJacobian(TS ts,PetscReal t,Vec U,Mat A,Mat B)
Collective on TS and Vec

Input Parameters

ts - the TS context
t - current timestep
U - input vector

Output Parameters

A - Jacobian matrix
B - optional preconditioning matrix
flag - flag indicating matrix structure

Notes

Most users should not need to explicitly call this routine, as it is used internally within the nonlinear solvers.

See KSPSetOperators() for important information about setting the flag parameter.

Keywords

SNES, compute, Jacobian, matrix

See Also

TSSetRHSJacobian(), KSPSetOperators()

Level:developer
Location:src/ts/interface/ts.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages