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On top of a dual quad core physical host, I would like to run a single VM with 8 virtual CPU (if possible) or at least 4 virtual CPU - for the purpose of scientific computing.

I have investigated what the market has to offer at this date and it seems that

  • VMWare Server 2.0 is limited to 2 virtual CPU.
  • Microsoft Virtual Server 2005 RC2 is limited to single CPU.
  • Microsoft Hyper-V 2008 is limited to 4 virtual CPU (with restriction on the guest OS).

Is there any solution to get 8 virtual CPUs?

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2 Answers 2

up vote 8 down vote accepted

Xen, KVM, VirtualBox, all can emulate more CPUs than you have, up to 32 CPUs per VM, at least.

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I would investigate VMware's ESXi for your applciation: http://www.vmware.com/products/esxi/.

Their product datasheet: http://www.vmware.com/files/pdf/vmware_esxi_datasheet.pdf

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