Re: POWER5 Question

[Al Barsa <barsa@xxxxxxxxxxxxxxxxxxx>]

It's not even a full governor.  It';s more like a Lt. Governor.

My 520 has a total of .43 CPU's!

Al

Al Barsa, Jr.
Barsa Consulting Group, LLC

400>390

"i" comes before "p", "x" and "z"
e gads

Our system's had more names than Elizabeth Taylor!

914-251-1234
914-251-9406 fax

http://www.barsaconsulting.com
http://www.taatool.com
http://www.as400connection.com



                                                                           
             Mark Phippard                                                 
             <MarkP@softlandin                                             
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As I understand things, the POWER5, like the POWER4, is a dual-core
processor.  Meaning, each chip module actually has 2 CPU's on it.  If that
is the case, then why are most of the 520's labelled as single processor
systems?  Are they really single module, but 2 CPU systems or does IBM do
it's "governor" BS to actually only use one of the CPU's?

Also, POWER5 implements Simultaneous Multi-Threading (SMT) which means
each CPU should look like 2 CPU's to the operating system, just as my
dual-Xeon xSeries servers look like 4 processors to Windows because of
Intel's HyperThreading technology.

So, given all of that, shouldn't a single processor POWER5 really look
like a 4-way system to OS/400, given that the single chip module should
have 2 processors, and each processor should look like 2 processors
because of the SMT?

Thanks

Mark


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