[petsc-users] Question about TSComputeRHSJacobianConstant

[Sajid Ali]

Hi Hong,

Looks like this is my fault since I'm using -ksp_type preonly -pc_type
gamg. If I use the default ksp (GMRES) then everything works fine on a
smaller problem.

Just to confirm,  -ksp_type preonly is to be used only with direct-solve
preconditioners like LU,Cholesky, right ?

Thank You,
Sajid Ali
Applied Physics
Northwestern University
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