[Discuss] FPU differences based on different chips.

[gaf at blu.org (Jerry Feldman)]

We've got a situation where on a single monte-carlo simulation, there is 
a difference between a result using a Xeon E5530 2.4G and a E5570 2.93G. 
In gleaning out some details, the E5530 is a VMware ESX where I think 
the E5570is a physical machine.  I've suggested that the guy run another 
test on a system on another VMware server (with an E7 - 8870).  In this 
product the engineer is testing, there are many different simulations, 
but only one is showing a difference (about 5 or 6 decimal places. 
Additionally, there is a random number generator involved. We've also 
got a few different versions of RHEL (5.2, 5.4, and 5.8).

-- 
Jerry Feldman <gaf at blu.org>
Boston Linux and Unix
PGP key id:3BC1EB90
PGP Key fingerprint: 49E2 C52A FC5A A31F 8D66  C0AF 7CEA 30FC 3BC1 EB90
8870).