/WSEXTENT=n

    Defines for the batch job a working set extent, 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 0, the smaller of the specified job 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 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 extent values must range between the numbers
    specified by the system parameters PQL_MWSEXTENT and WSMAX.