VMS Help SET, QUEUE, Qualifiers, /WSDEFAULT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /WSDEFAULT=n

    Defines for a batch job a working set default, the default number
    of physical pages that the job can use.

    The value set by this qualifier overrides the value defined in
    the user authorization file (UAF) of any user submitting a job to
    the queue.

    Specify the value of n as a number of 512-byte pagelets on Alpha
    or 512-byte pages on VAX. Note that the OpenVMS system rounds up
    this value to the nearest CPU-specific page so that actual amount
    of physical memory allowed may be larger than the specified
    amount on Alpha.

    If you specify the value 0 or NONE, the working set default
    value defaults to the value specified in the UAF or by the SUBMIT
    command (if included).