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3 Replies Last post: Nov 5, 2009 10:30 PM by fdv  

Windows 7 Home Premium and multicore (Fusion 3) posted: Nov 4, 2009 1:57 PM

Click to view fdv's profile Lurker
fdv
3 posts since
May 30, 2005
Hello,
I know Windows 7 Home Premium allows only "one physical" processor. Anyway it allows multiple cores.

I'd like my VM to see "two cores" and one processor. Is it possible?

Setting "2 processors" in the VM settings will allocate two physical processors, and Windows home premium actually use only one.

I also tried to set (in vmx file)...

numvcpus = "1"
cpuid.coresPerSocket = "2"
cpuid.supportsMulticore = "TRUE"

...without success.

Re: Windows 7 Home Premium and multicore (Fusion 3)

1. Nov 5, 2009 1:08 PM in response to: fdv
Click to view fdv's profile Lurker
fdv
3 posts since
May 30, 2005
Solved!!
The correct settings in .vmx file are:

maxvcpus = "1"
numvcpus = "2"
cpuid.coresPerSocket = "2"

Re: Windows 7 Home Premium and multicore (Fusion 3)

2. Nov 5, 2009 1:16 PM in response to: fdv
Click to view etung's profile Guru
etung
11,086 posts since
Oct 15, 2006
I know Windows 7 Home Premium allows only "one physical" processor. Anyway it allows multiple cores.

I'd like my VM to see "two cores" and one processor. Is it possible?

Setting "2 processors" in the VM settings will allocate two physical processors, and Windows home premium actually use only one.


This should Just Work (e.g. for guests we know don't support more than one physical processor, we should expose a single multicore processor to the guest, up to the limit of your physical hardware). If it doesn't it's a bug; you should not have to edit the .vmx file.

Re: Windows 7 Home Premium and multicore (Fusion 3)

3. Nov 5, 2009 10:30 PM in response to: etung
Click to view fdv's profile Lurker
fdv
3 posts since
May 30, 2005
Here is my results playing with VM settings (and without editing vmx file):
  • setting "one processor", I have only one physical processor and only one core.
  • setting "two processors", I have two physical processors and only one core per processor. Anyway, because Home Premium allows only one physical processor I have only only processor and only one core (even Windows device manager still show two physical CPU, but actually it uses only one).

Editing vmx as described in previous email I have "one physical processor" and "two core", as I need.

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