[petsc-users] force ksp to continue if divergence or increase divergence tol, how ?

[Pierre-Yves Aquilanti]

Hello,

I'm using a preconditionner of my construction which has the particularity
to make the norm of the residual vector increase suddently (from 1e-1 to
1e+6). The problem is that if that PETSc concludes to divergence after
applying my preconditionner.

Also, i setted the -ksp_divtol flag to 100 (random value to make it works)
and also used the KSPSetTolerances function with the same value.

I'm probably missing some point but can't figure out which one.

Do someone has an idea ?

Thanks a lot.
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