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Presently I am working with a large PETSc program which needs to be modular. I need to use PF objects in PETSc (at least I guess so as I need to pass functions as arguments with enough flexibility with MPI vectors. Is there any other way?) But the PETSc website does not provide much help in this aspect and I am stuck. Any suggestion or example will be appreciated.

Additionally, whenever I use PFApply or PFApplyVec, it compiles but on execution gives something like

"PFApplyVec() line 202 in src/vec/pf/interface/pf.c Application called MPI_Abbort(MPI_COMM_WORLD,-36453747642)"

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