https://www.ibm.com/docs/en/ims/15.3.0?topic=client-cslrmprt-process-terminate
IMS 15.3 - System programming APIs - CSLRMPRT: process terminate
You can issue the CSLRMPRT request to terminate an IMSplex-wide process. Any client that is participating in the process can issue a CSLRMPRT FUNC= TERMINATE...
system programmingimsapisprocessterminate