On Tue, 12 Mar 2019, Renato Poli wrote:
> I see the message below, but I cannot identify the reason. > I know it is related to constrain_rows" I use to tie together the pressure > in a boundary. > > 0 KSP Residual norm 8.180571722215e+07 > 1 KSP Residual norm 4.475923747576e+03 > 2 KSP Residual norm 4.475912845013e+03 > # Debug[1:0]: Linear solver convergence/divergence reason: > DIVERGED_INDEFINITE_PC > > What that means? > Any suggestion on possible causes? IIRC that usually means you don't have an invertible preconditioner, which unless you were setting up a separate preconditioner means you don't have an invertible Jacobian. --- Roy _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
