On Apr 24, 2014, at 5:24 PM, Oo <[email protected]> wrote: > > Configure PETSC again?
No, the command line when you run the program. Barry > > ------------------ Original ------------------ > From: "Dave May";<[email protected]>; > Send time: Friday, Apr 25, 2014 6:20 AM > To: "Oo "<[email protected]>; > Cc: "Barry Smith"<[email protected]>; "Matthew Knepley"<[email protected]>; > "petsc-users"<[email protected]>; > Subject: Re: [petsc-users] Convergence_Eigenvalues_k=3 > > On the command line > > > On 25 April 2014 00:11, Oo <[email protected]> wrote: > > Where should I put "-ksp_monitor_true_residual -ksp_monitor_singular_value " ? > > Thanks, > > Meng > > > ------------------ Original ------------------ > From: "Barry Smith";<[email protected]>; > Date: Apr 25, 2014 > To: "Matthew Knepley"<[email protected]>; > Cc: "Oo "<[email protected]>; "petsc-users"<[email protected]>; > Subject: Re: [petsc-users] Convergence_Eigenvalues_k=3 > > > There are also a great deal of ??bogus?? numbers that have no meaning and > many zeros. Most of these are not the eigenvalues of anything. > > Run the two cases with -ksp_monitor_true_residual > -ksp_monitor_singular_value and send the output > > Barry > > > On Apr 24, 2014, at 4:53 PM, Matthew Knepley <[email protected]> wrote: > > > On Thu, Apr 24, 2014 at 12:57 PM, Oo <[email protected]> wrote: > > > > Hi, > > > > For analysis the convergence of linear solver, > > I meet a problem. > > > > One is the list of Eigenvalues whose linear system which has a convergence > > solution. > > The other is the list of Eigenvalues whose linear system whose solution > > does not converge (convergenceReason=-3). > > > > These are just lists of numbers. It does not tell us anything about the > > computation. What is the problem you are having? > > > > Matt > > > > Do you know what kind of method can be used to obtain a convergence > > solution for our non-convergence case? > > > > Thanks, > > > > Meng > > > > > > > > -- > > 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 > > . >
