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Cores from Multiple Physical Hosts in VM

asked 2013-11-12 07:19:25 -0500

ephemeric gravatar image


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?

I'm not sure if this is possible.

Thank you.

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answered 2013-11-12 07:58:12 -0500

sgordon gravatar image

updated 2013-11-12 07:59:22 -0500

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.

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Asked: 2013-11-12 07:19:25 -0500

Seen: 165 times

Last updated: Nov 12 '13