ParaStation MPI by default exports only a limited set of environment variables to newly spawned processes, like HOME, USER, SHELL or TERM.

Additional variables can be exported using PSI_EXPORTS.

For a complete list of environment variables known to and exported automatically by ParaStation MPI, refer to ps_environment(5).

For more details, refer to ParaStation MPI User's Guide.

Environment variables may also be inherited by the ParaStation daemon. See parastation.conf(5) and psiadmin(1) for details.