I think it creates 2 Virtual NUMA nodes on one single Physical NUMA node If you see below cpu 0-1 are in one NUMA node and 2-3 are in the other. This is what I can understand from the xml. <cell id='0' cpus='0-1' memory='524288'/> <cell id='1' cpus='2-3' memory='524288'/ On 29 April 2015 at 10:36, Blair Bethwaite <blair.bethwaite at gmail.com> wrote: > Hi all, > > Just reading over the docs describing NUMA scheduler filter testing > ( > http://docs.openstack.org/developer/nova/devref/testing/libvirt-numa.html#testing-instance-boot-with-1-numa-cell-requested > ). > Somewhat confused by the scenario at the end, which seems to call for > a guest with 1 NUMA node but looks like it gets created with 2... I'm > obviously misunderstanding something in the resultant XML, but there's > no topology info shown from inside the guest, so I'm not sure. Anyone > tried this? > > -- > Cheers, > ~Blairo > > _______________________________________________ > OpenStack-HPC mailing list > OpenStack-HPC at lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-hpc > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-hpc/attachments/20150429/04de14d9/attachment.html>