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No sharing of cores across physical compute nodes. Limited to what the hypervisor can see, in this case one core.
Regards
Malini

From: Christos Grivas [mailto:chgrivas7 at gmail.com]
Sent: Tuesday, September 09, 2014 2:38 AM
To: openstack at lists.openstack.org
Subject: [Openstack] Architecture Compute Beginner Question

Hello all,
I have a fundamental question which, hopefully, someone here can answer.
I will ask by presenting a probably non-realistic example.

Lets say I have 10 compute nodes as separate physical machines  with 1 core each. Without taking into account the ability to overload each core (the famous 16:1) I would like to know:

Can i use all the 10 cores to create a single instance that takes advantage of the all the core pool? Or the fact that each compute node has its own hypervisor limits the core usage of each instance to one? Are the whole resources abstracted and seen as one or not?
Thank you in advance.
B/R

Chris
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