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From "me@kelceydamage.com" ...@kelceydamage.com>
Subject Re: Cores from Multiple Physical Hosts in VM
Date Fri, 15 Nov 2013 13:47:02 GMT
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" <runseb@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 <ephemeric@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.
> 
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> 
> 
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