[gmx-users] Re: SSE on AMD (fwd)

[Alan Wilter Sousa da Silva]

Hi Erik!

Now I got a new doubt.  I always used heterogeneous cpu (AMD and 
Intel) clusters with Openmosix.

Since the server (from where I start my jobs) may be running on AMD or on 
Intel and some others nodes do have different cpu brands, CPUID takes the 
cpu server flags, right?

So, do you figure out what may happen to a job started on AMD cpu (with 
gmx hacked to use 3Dnow) when it migrates to intel cpu?  And vice-versa?

Shall I must expect just a decrease in performance?

Many thanks in advance,

Cheers,
-- 
--------------------------
Alan Wilter Sousa da Silva
--------------------------
B.Sc. - Dep. Física - UFPA
M.Sc. - Dep. Física - PUC/RJ
D.Sc. - IBCCF/UFRJ
Bolsista Pesquisador LAC-INPE
São José dos Campos (SP), Brasil
www.lac.inpe.br/~alan