PETSc 2.3.3 is installed in directory $PET_HOME/MATH/petsc-2.3.3-p3 on MJM.
Set the following environment variables (choose only one "PETSC_ARCH"):PETSc 3.0.0 is installed in directory $PET_HOME/MATH/petsc-3.0.0-p2 on MJM.
Set the following environment variables (choose only one "PETSC_ARCH"):