On Thu, 18 Mar 2021 11:39:06 -0500, Salva Carrasco wrote:

>Peter, from my Sysplexex (two CPC, two Sysplexes):
>
>Sysplex 1:
>LPAR1 - CPC 1 - 00D96E2471DF1F558800000008040001
>LPAR2 - CPC 1 - 00D96E2543F30EBBA200000008040003
>LPAR1 - CPC 2 - 00D96E24D3FB32884200000008040002
>LPAR2 - CPC 2 - 00D96E25612D8B384600000008000004
>    ...
So uniqueness is guaranteed.  Is monotonicity likewise guaranteed?

Suppose a task on LPAR1 CPC 2 does STCKE, then a task on LPAR 1 CPC 1
does STCKE so soon afterward that bits 0-111 are identical. The value
stored first appears greater because of bits 112-127.  But is there any
sequence of instructions that could detect that prochronism?

-- gil

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN

Reply via email to