On Fri, 3 Sep 2010 16:47:20 -0600, Steve Comstock wrote: >http://www-01.ibm.com/support/docview.wss?uid=isg2b9de5f05a9d57819852571c500428f9a > In which I read:
In a multiprocessing configuration, a single TOD clock is shared by all CPUs. Each CPU has its own clock comparator, CPU timer, and TOD programma- ble register. I thought I was told in the past that each CPU had its own TOD clock, for fault tolerance. Was I misinformed, or did IBM decide subsequently that the complexity of synchronizing several dozen clocks outweighs the risk of a single point of failure? -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html