Cluster-wide overclocking...

[Bill Broadley]

Theres alot of misinformation out there on overclocking, and the
usual overclock till the machine reboots/favorite game doesn't run
is a common mentality out there.   

I'd examine things very closely before you consider it.  cdrom.com
used to slightly overclock, till they traced some corruptions to
the overclocking months later.

Just because things look like they work, does not mean that overclocking
isn't introducing subtle floating point differences, corruptions,
etc.  ECC doesn't protect against getting an address bit wrong... 

Not to mention actual damage to the processor, heat related (and no
cooling more isn't the same), electron migration, and other numerous
factors.

The manufacturers margins in these areas are there for exactly the
reason for making things compatible, making sure 32 out of 32
machines work reliably.

Not worth it in my book, downtime, soft errors, harderrors, and
corruptions can get very expensive very quickly.

--
Bill Broadley
Mathematics, UCDavis
Programmer/SysAdmin