PETSc System routines

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

f90_IRIX.c
f90_alpha.c
f90_hpux.c
f90_intel8.c
f90_rs6000.c
f90_solaris_old.c
f90_win32.c
f90_absoft.c
f90_intel.c
f90_nag.c
f90_solaris.c
f90_t3e.c
f90_lahaye.c
f90_IRIX.h
f90_nag.h
f90_solaris_old.h
f90_alpha.h
f90_rs6000.h
f90_t3e.h
f90_hpux.h
f90_solaris.h
f90_win32.h
f90_absoft.h
f90impl.h
f90_lahaye.h
f90_common.c
makefile