PETSc System routines

PETSc provides a variety of "system" level routines, including parallel file access, synchronized printing to screen.

finclude/
petsc.h
petscsys.h
private/petscimpl.h
petscbag.h
petscmath.h
petscbt.h
petscblaslapack.h
petscversion.h
zpetsc.h
petsctime.h
makefile