An installation can specify whether to activate or deactivate alternate wait management (AWM). If AWM is activated, SRM and LPAR cooperate to reduce low utilization effects and overhead.

For HIPERDISPATCH=NO (the default value), specifying CCCAWMT with any value in the range 1 to 499999 makes AWM active. Specifying CCCAWMT with any value in the range of 500000 to 1000000 makes AWM inactive. AWM is active or inactive only for any general CP, System z® Application Assist Processor (zAAP), and System z Integrated Information Processor (zIIP). The default is 12000 (when AWM is active) for all CPU types.

For HIPERDISPATCH=YES, the valid range for CCCAWMT is 1600 to 3200. For ZAAPAWMT and ZIIPAWMT, the valid range is 1600 to 499999. Any other value will be set to the default of 3200. Note that AWM cannot be turned off.