If you want help with why a compile fails you need to at least
send the entire output when the compile fails.
Barry
On Sun, 28 Jan 2007, jiaxun hou wrote:
> But I already had another preconditioner. I want to study the behave of the
> smooth method in the GMRES with my preconditioner. How can I do?
Thanks!
-------------------------------------------------------------
----- ???????? ----
???????? Barry Smith <bsmith at mcs.anl.gov>
???????? petsc-users at mcs.anl.gov
???????? 2007/1/28(????), ????11:28:35
?????? Re: about combining the GMRES and smooth methods
It seems extremely likely that you do not want to do this.
If you want to use SOR or SSOR as a preconditioner for GMRES simply
use -pc_type sor; see the manual page for PCSOR for other options.
Barry
On Sun, 28 Jan 2007, jiaxun hou wrote:
> Hi,
I want to add a smooth method in the GMRES routine. I do it in the function
KSPSolve_GMRES of /src/ksp/ksp/impls/gmres/gmres.c. The code likes that:
PetscErrorCode KSPSolve_GMRES(KSP ksp) {
.....
ierr = GMREScycle(&its,ksp);CHKERRQ(ierr);
ierr = MatRelax(ksp->pc->mat,
ksp->vec_rhs,1,SOR_FORWARD_SWEEP,0,1,1,ksp->vec_sol);CHKERRQ(ierr);
.....
}
But compile fail. Is it the right way?
Thanks.
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