open mosix performance on dual-core quad-core intel

I feel this is a relatively simple question but i have so far been 
unable to find reliable information concerning this. I currently run a 
small cluster of openmosix machines (over 100Mb network, single intel 
processors). We are about to add additional machines to the cluster but 
I am not sure of the performance benefits of intels dual-core quad-core 
offerings in regards to Openmosix. Are there any reason to not go with 
dual/quad core machines? Would I most likely have better performance 
running a bunch of single core intels? Are there well known problems 
that may arise? I read on a misc. message board that disabling SMP is 
recommended which would render upgrading to dual/quad core pointless. 
Any information concerning this issue would be appreciated.





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