[petsc-dev] Question about the pseudo-time stepping

[Lulu Liu]

Hi,

I want to solve a stead-state problem G(u)=0 using the pseudo-transient
continuation method.

I saw the example petsc/src/ts/examples/tutorials/ex1,

  ierr = TSSetRHSJacobian(ts,J,J,*FormJacobian*,&user);CHKERRQ(ierr);

however, the analytical Jacobian in my problem is very complex and it is
not easy to give the function "*FormJacobian*". If I run the code like

 ./ex1 -ts_monitor_pseudo  -snes_mf

Is it correct? Does it involves the time derivative term when using
-snes_mf?

Thanks!

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