It is a hypervisor restriction not CS. I can wonder some work around like using a distributed shared memory system and on top of it installing a hypervisor like Xen and XCP. Then, it would work since the DSM would simulate a single machine with the resource of all machines on the cluster.
Of course, there is a trade of, DSM generates a pretty good overhead, but it is interesting to try it out and check the performance. 2013/11/16 Robert Gabriel <epheme...@gmail.com> > On 15 November 2013 15:47, m...@kelceydamage.com <m...@kelceydamage.com> > wrote: > > > The only people I have seen that have macro VMs working was some company > > out of Boston making virtual router/networking services with special > > interconnects that allowed process/thread striping over multiple > > hosts/sockets. > > > > Sent from my HTC > > > > ----- Reply message ----- > > From: "Sebastien Goasguen" <run...@gmail.com> > > To: <users@cloudstack.apache.org> > > Subject: Cores from Multiple Physical Hosts in VM > > Date: Fri, Nov 15, 2013 2:08 AM > > > > On Nov 13, 2013, at 7:03 AM, Robert Gabriel <epheme...@gmail.com> wrote: > > > > > Hi, > > > > > > Is it possible to do the below? > > > > > > Thank you. > > > > > > > > > Answered by sgordon: > > > > > > It is my understanding that this is not currently possible, there was > > some > > > discussion at the design summit (I think in the Libvirt driver roadmap > > > session) about making the scheduler NUMA aware which would allow such > > > configurations on hardware that supports NUMA but this is currently > > > unimplemented. > > > > > > In reply to ephemeric's question: Cores from Multiple Physical Hosts in > > VM > > > > > > Tags: vcpus, aggregates, hosts, multiple, physical. > > > > > > Hi, > > > > > > Pardon my ignorance as I have never looked at cloud computing. > > > > > > Is it possible to create a VM and assign to it cores from multiple > > physical > > > hosts for high vcpu numbers? > > > > > > We have the following problem: Splunk running 38 concurrent searches > on a > > > blade that only has 16 cores. > > > > > > By creating a VM and combining the cores from two blades, hence 32 > vcpus > > in > > > total somehow? > > > > As far as I know this is not possible. > > > > That said I would be very surprise if Splunk could not use multiple > > machines. So just run multiple instances (separate VMs) that point to the > > same data store. > > > > > > > > I'm not sure if this is possible. > > > > > > Thank you. > > > > > > To change frequency, language and content of these alerts, please visit > > your > > > user profile< > > https://ask.openstack.org/en/users/2044/ephemeric/subscriptions/>. > > > > > > > > > If you believe that this message was sent in an error, please email > about > > > it the forum administrator at communitym...@openstack.org. > > > > Thank you, at least gives me a direction. > -- Rafael Weingärtner
