The ParaStation MPI packages are installed by default in /opt/parastation. While installing the psmpi2 packages, this path might be modified using the --prefix option of rpm.

  # rpm -U --prefix /new/path psmpi2-5.0.25-2.x86_64.rpm
  # rpm -U --prefix /new/path psmpi2-doc-5.0.25-2.x86_64.rpm

All other packages are currently not relocatable.