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

       /WSQUOTA=n

    Defines, for the batch job, a working set quota, which is the
    amount of physical memory that the job is guaranteed. If the
    queue on which the job executes has a nonzero working set quota,
    the smaller of the specified job and queue values is used. If the
    queue on which the job executes has a working set quota of zero,
    the smaller of the specified job value or the value established
    in the user authorization file (UAF) is used.

    Specify the value of n as a number of 512-byte pagelets on
    Alpha or 512-byte pages on VAX. Note that the operating system
    rounds 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 zero or NONE, the
    specified queue or UAF value is used. Working set quota values
    must range between the numbers specified by the system parameters
    PQL_MWSQUOTA and WSMAX.