Be careful of IUCV. There is an entire chapter of "CP Programming Services" devoted to IUCV in an MP configuration.
Regards,
Richard Schuh
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Each CP service defines how it executes on a non-base processor.
Things like IUCV and most Diagnose codes work just fine. In CMS
Multitasking, non-base processors are intended for pure code not
requiring CMS services.
Bob Bolch
