I have finally made this change. pcimpl.h has been moved from src/ksp/pc/pcimpl.h to include/private/pcimpl.h (thus "make install" will preserve it). Anyone using pcimpl.h with petsc-dev will need to make the change in their source code. Barry On Mon, 4 Jul 2005, Johan Jansson wrote:

Hi!

We've implemented a PetSc preconditioner in DOLFIN, but it seems the preconditioner implementation API (pcimpl.h) isn't a public API (i.e. user code cannot see it). We've solved this by copying pcimpl.h into DOLFIN, but this is not a good solution. Could you consider making the preconditioner implementation API public?

The reason the preconditioner is implemented in DOLFIN and not in PetSc is because the preconditioner depends on DOLFIN. The idea is to solve a nonlinear system in a time-stepping method for ODEs by Newton's method with a Krylov solver preconditioned with a fixed-point solver. The fixed-point solver is part of DOLFIN. There are likely other such applications of externally implemented preconditioners.

Thank you, Johan