[petsc-users] Can I set up the initial guess for the solution vector for the KSP?

[Jed Brown]

On Fri, Jul 15, 2011 at 10:00, <Nan.Jia at dartmouth.edu> wrote:

> Dear all,
> I am trying to solve a time stepping problem, And I'd like to use the
> solution from the last time step as the initial guess for the iterative
> solver in KSP,for example, the GMRES method. Can I dit by calling some
> routines in PETSc? Thanks in advance.
>

http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-dev/docs/manualpages/KSP/KSPSetInitialGuessNonzero.html
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