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One big virtual CPU

asked 2015-09-18 12:47:25 -0500

yanek1 gravatar image

updated 2015-10-02 12:23:37 -0500


Is it possible for one VM to have 8 CPU cores from one physical server and let's say 32 Cores from another physical server(Compute node) with Openstack?

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answered 2015-10-02 16:14:09 -0500

carlosedp gravatar image

No, this is not possible. The vCPU allocation is limited into one host.

You can have multiple VMs having a sum of vCPUs to more than the host has CPUs but you cannot have the vCPUs spanning to multiple hosts (physical servers).

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If I have an scalable servers with a lot of CPU's available(2x vCPU's), I can use for 1 VM the 32cores (vCPU's). So, for each user which have need for example 48 vCPU's, is a must to create 1 host which will have 2 VM, each VM with 24 vCPU's. I have write? Is correct my point of view?

Johnny_P gravatar imageJohnny_P ( 2015-10-05 03:47:15 -0500 )edit

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Asked: 2015-09-18 12:47:25 -0500

Seen: 1,005 times

Last updated: Oct 02 '15