VMS Help SUBMIT, 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. If the queue on which the
    job executes has a nonzero default working set, the smaller of
    the specified job and queue values is used. If the queue on which
    the job executes has a working set default of 0, the smaller of
    the specified job and UAF values (value established in the user
    authorization file) is used.

    Specify the value of n as a number of 512-byte pagelets on
    Alpha or 512-byte pages on VAX. Note that OpenVMS systems round
    up this value to the nearest CPU-specific page so that the
    actual amount of physical memory allowed may be larger than the
    specified amount on Alpha. If you specify the value 0 or NONE,
    the specified queue or UAF value is used. Working set default
    values must range between the numbers specified by the system
    parameters PQL_MWSDEFAULT and WSMAX.