TSGetRHSJacobian

Returns the Jacobian J at the present timestep.

Synopsis

int TSGetRHSJacobian(TS ts, Mat *J, Mat *M, void **ctx)
Not Collective, but parallel objects are returned if TS is parallel

Input Parameter

ts -The TS context obtained from TSCreate()

Output Parameters

J - The Jacobian J of F, where U_t = F(U,t)
M - The preconditioner matrix, usually the same as J
ctx - User-defined context for Jacobian evaluation routine

Notes: You can pass in PETSC_NULL for any return argument you do not need.

Contributed by: Matthew Knepley

See Also

TSGetTimeStep(), TSGetRHSMatrix(), TSGetTime(), TSGetTimeStepNumber()

Keywords

TS, timestep, get, matrix, Jacobian

Location: src/ts/interface/ts.c
Time Stepping
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