/WSEXTENT=n

    Defines, for the batch job, a working set extent, which is the
    maximum amount of physical memory that the job can use. The job
    uses the maximum amount of physical memory only when the system
    has excess free pages. If the queue on which the job executes has
    a nonzero working set extent, the smaller of the specified job
    and queue values is used. If the queue on which the job executes
    has a working set extent of zero, the smaller of the specified
    job value and 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. 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 extent values must range between the numbers
    specified by the system parameters PQL_MWSEXTENT and WSMAX.