Hello, I am trying to figure out how to define a VM's CPU Socket:Core:Threads topology. For licensing reasons we can't create VM's that map each core as a separate socket. KVM and libvirt both support the ability to define the socket:core ratio/topology, but I can't see how to get openstack to request those capabilities. I've tried the libvirt_cpu_mode and libvirt_cpu_model options, but they only seem to control the cpu's name, and what flags are passed through. It seems that if I could only get nova to create the xml file with a topology section eg: <toplogy sockets='1' cores='4' threads='1'/> then it would work. This feature request seems related: https://bugs.launchpad.net/nova/+bug/1199019 But I'm not sure if it's possible to define it within nova as yet anyway. Cheers, Evan. Evan Fraser Trade Me | Storage Engineer P +64 4 803 2756 M +64 22 087 4032 E evan.fraser at trademe.co.nz<mailto:evan.fraser at trademe.co.nz> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20130924/a1f19163/attachment.html>