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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.

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.

The way to support this type of workload in the current OpenStack architecture is to make the application itself distributed, allowing for horizontal instead of vertical scaling.