LNMPHASHTBL is a system parameter that sets the size of the process logical name hash table. Logical names are hashed using a function of the name length and contents. The LNMPHASHTBL parameter determines the number of entries for process-private logical names. The recommended setting is the average number of process-private logical names.
Note that the hashed values are rounded up to the nearest power of 2.
LNMPHASHTBL has the GEN attribute. On VAX systems, LNMPHASHTBL is also an AUTOGEN-altered parameter.