On Mon, Dec 26, 2011 at 12:37 AM, behzad baghapour < behzad.baghapour at gmail.com> wrote:
> Dear all, > > I used "-snes_ksp_ew_conv" to inexactly solve the linear system with Petsc > prescribed forcing term BUT I didn't catch any difference or improvement. I > just screen out the "rtol" of KSP during > SNES iteration and found out It is constant (1e-5) in both exact and > inexact cases. Please let me know how I should implement "inexact" method > in SNES and what is the relation between KSP tolerances and inexact setup? > -snes_view will tell you if it is being used, and the option is wrong http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/SNES/SNESKSPSetUseEW.html Matt > Merry Xmas, > BehZad > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20111226/461fe3bb/attachment.htm>
