[petsc-dev] Chebyshev hybrid option has no functional interface or man pages
Jed Brown
jed at jedbrown.org
Thu Mar 13 21:22:17 CDT 2014
This is Hong's code. I don't believe in this method. ;-)
Barry Smith <bsmith at mcs.anl.gov> writes:
> There should be a functional interface for turning this on and off with a manual page.
>
> Barry
>
> /*
> Use hybrid Chebyshev.
> Ref: "A hybrid Chebyshev Krylov-subspace algorithm for solving nonsymmetric systems of linear equations",
> Howard Elman and Y. Saad and P. E. Saylor, SIAM Journal on Scientific and Statistical Computing, 1986.
> */
> ierr = PetscOptionsBool("-ksp_chebyshev_hybrid","Use hybrid Chebyshev","",cheb->hybrid,&cheb->hybrid,NULL);CHKERRQ(ierr);
> ierr = PetscOptionsInt("-ksp_chebyshev_hybrid_chebysteps","Number of Chebyshev steps in hybrid Chebyshev","",cheb->chebysteps,&cheb->chebysteps,NULL);CHKERRQ(ierr);
> ierr = PetscOptionsInt("-ksp_chebyshev_hybrid_eststeps","Number of adaptive/est steps in hybrid Chebyshev","",cheb->eststeps,&cheb->eststeps,NULL);CHKERRQ(ierr);
> ierr = PetscOptionsBool("-ksp_chebyshev_hybrid_purification","Use purification in hybrid Chebyshev","",cheb->purification,&cheb->purification,NULL);CHKERRQ(ierr);
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