nova/releasenotes/notes/vgpu-18da86834c90f041.yaml
Stephen Finucane bd3da5d763 trivial: Fix typos in release notes
Change-Id: I989fa12f115075c27b29b4863cbb5240abfb5978
2018-01-31 10:51:03 +00:00

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YAML

---
features:
- |
When using XenAPI driver for XenServer, we can support booting instances
with a vGPU attached to get better graphics processing capability.
In order to use this feature, the operators should specify the enabled
vGPU types in the nova compute configuration file with the configuration
option - ``[devices]/enabled_vgpu_types``. Only the enabled vGPU types
can be used by instances.
XenServer automatically detects and groups together identical physical
GPUs. Although the physical GPUs may support multiple vGPU types, at
the moment nova only supports a single vGPU type for each compute node.
The operators can run the following CLI commands in XenServer to get
the available vGPU types if the host supports vGPU::
xe vgpu-type-list
The values of ``model-name ( RO):`` from the output of the above commands
are the vGPU type names which you can choose from to set the nova
configure - ``[devices]/enabled_vgpu_types``. Please choose only one
vGPU type to be enabled.
The operators should specify a vGPU resource in the flavor's extra_specs::
nova flavor-key <flavor-id> set resources:VGPU=1
Then users can use the flavor to boot instances with a vGPU attached.
At the moment, XenServer doesn't support multiple vGPUs for a single
instance, so ``resources:VGPU`` in the flavor's extra_specs should
always be ``1``.