[petsc-users] Solution Diverging

[Maahi Talukder]

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?


Regards,
Maahi Talukder
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