Barry Smith <[email protected]> writes:

We generate (or should if we don't) our shared PETSc libraries by

sharedlink petscsys.so -lmpi

sharedlink petscvec.so -lpetscsys

If your shared libraries are set up correctly and there is a strict policy about transitive linking (the correct thing), then this is not okay because petscvec.so has direct calls to MPI. If libmpi.a (built with -fPIC) was inlined into petscsys.so, then it would "work" (but be disgusting).