NMPSUBS parameter

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Number of offload subtasks

Summary

Default value
0
Parameter type
System
Where set
On User 0's parameter line or as SYSOPT
Related products
All
Introduced
Model 204 V6.1 or earlier

Description

At z/OS installations using the MP feature, the number of offload subtasks ATTACHed during online initialization

The optimum value of NMPSUBS is normally one less than the number of processors in the CPU. The maximum value is 32.

The NMPSUBS parameter cannot be reset, but the AMPSUBS parameter (which determines the number of active subtasks) can be reset at any time by the system manager.

For more information on MP concepts and parameters, refer to Multiprocessing (MP/204).

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