[petsc-users] Preconditioned JFNK using SuperLU_dist for time dependent problems

[Travis C. Fisher]

Hong,

In petsc-dev, superlu_dist now fails at the first attempt to apply the 
preconditioner in the first linear solve. In the release version, it 
worked fine for the first time step (that's five nonlinear solves using 
the same preconditioner), but then failed on the second time step (which 
I suppose is more disconcerting). I have tried on 1 and 4 processors and 
get the same problem in the development version.

To clarify, when I mentioned ASM/ILU before, the ILU routine I was using 
was the default PETSc routine. That still works with my implementation 
using petsc-dev.

Mumps worked fine with petsc-dev, but I don't think it's as fast as 
superlu_dist for the test problem I am using.

Thanks,

Travis