SMT is only supported for zIIPs, IFLs and SAPs. –z13(s) allows following engine types to run in SMT mode •zIIPs under z/OS •IFLs under z/VM
Regards Parwez Hamid ________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Brian Westerman <[email protected]> Sent: 27 June 2019 08:18 To: [email protected] Subject: z13s with single CPU able to use SMT? Hi, one of our boxes is a z13s (a model N10 with a single CPU), and supposedly if you change LOADxx to add PROCVIEW CORE and add the IEAOPTxx entry of MT_CP_MODE=x, it will open up the use of the SMT thread. If I code MT_CP_MODE=2, it gets an error that the value (2) is not within limits. My "D M=CORE" command shows: IEE174I 23.27.00 DISPLAY M 793 CORE STATUS: HD=Y MT=2 MT_MODE: CP=1 zIIP=1 ID ST ID RANGE VP ISCM CPU THREAD STATUS 0000 + 0000-0001 M FE00 +N CPC ND = 002965.N10.IBM.02.0000000CD497 CPC SI = 2965.A01.IBM.02.00000000000CD497 Model: N10 CPC ID = 00 CPC NAME = P00CD497 LP NAME = SBOX LP ID = 3 CSS ID = 0 MIF ID = 3 whereas it used to (before this change) show: D M=CORE IEE174I 22.31.01 DISPLAY M 292 CORE STATUS: HD=Y MT=1 ID ST ID RANGE VP ISCM CPU THREAD STATUS 0000 + 0000-0000 M FE00 + CPC ND = 002965.N10.IBM.02.0000000CD497 CPC SI = 2965.A01.IBM.02.00000000000CD497 Model: N10 CPC ID = 00 CPC NAME = P00CD497 LP NAME = SBOX LP ID = 3 CSS ID = 0 MIF ID = 3 So it changed MT=2 and appears to have a ID range changed from 0000-0000 to 0000-0001, so does that mean I now have 2 threads even though the IEAOPTxx setting of MT_CP_MODE=2 fails? How do I tell if I am actually getting the use of two threads instead of one, is there something in RMF that points to this? Thanks in advance, Brian ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
