[petsc-users] Solution Diverging

Maahi Talukder maahi.buet at gmail.com
Fri Apr 5 15:32:24 CDT 2019

Dear All,

I am solving a linear system arising from 9-point discretization of Poisson
equation to generate grid. KSP solvers are giving nice converged result
when I am dealing with a large matrix. But when I am trying to implement
KSP solvers when the matrix is smaller and the values are smaller too, the
solution is diverging.
Any suggestions how to get around this problem?

Maahi Talukder
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