Adds initial support for vGPUs
Adds support for configuring vGPUs on NVIDIA hardware. Closes-Bug: #2028843 Change-Id: I4c8481f7429dbf50d51e26bd7acee24e16ee6c79
This commit is contained in:
Will Szumski
Pierre Riteau
parent
409d85758a
commit
bd36b5f018
@ -362,6 +362,9 @@ kolla_overcloud_inventory_top_level_group_map:
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compute:
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compute:
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groups:
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groups:
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- compute
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- compute
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compute-vgpu:
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groups:
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- compute-vgpu
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monitoring:
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monitoring:
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groups:
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groups:
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- monitoring
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- monitoring
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16
ansible/inventory/group_vars/all/vgpu
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16
ansible/inventory/group_vars/all/vgpu
Normal file
@ -0,0 +1,16 @@
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---
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################################################################################
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# VGPU configuration.
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# URL pointing to location of GRID driver. Examples are:
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# "file://path/on/ansible/control/host"
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# "http://webserver/NVIDIA-GRID-Linux-KVM-525.105.14-525.105.17-528.89.zip"
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vgpu_driver_url: ""
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# Flag to control whether the vGPU playbook should automatically reboot the
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# hypervisor. Note: this is necessary for the driver to be loaded correctly.
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# Caution should be used when changing this option.
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vgpu_do_reboot: true
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# Time to wait when rebooting the host before failing.
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vgpu_reboot_timeout: 600
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@ -31,3 +31,4 @@
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- import_playbook: "apparmor-libvirt.yml"
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- import_playbook: "apparmor-libvirt.yml"
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- import_playbook: "swift-block-devices.yml"
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- import_playbook: "swift-block-devices.yml"
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- import_playbook: "compute-libvirt-host.yml"
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- import_playbook: "compute-libvirt-host.yml"
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- import_playbook: "vgpu.yml"
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42
ansible/vgpu.yml
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42
ansible/vgpu.yml
Normal file
@ -0,0 +1,42 @@
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---
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- name: Configure IOMMU
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hosts: iommu
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tags:
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- iommu
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- vgpu
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tasks:
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- import_role:
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name: stackhpc.linux.iommu
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handlers:
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- name: Register that a reboot is required
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set_fact:
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kayobe_needs_reboot: true
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listen: reboot
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- name: Configure NVIDIA VGPUs
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hosts: vgpu
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tags:
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- vgpu
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tasks:
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- import_role:
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name: stackhpc.linux.vgpu
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handlers:
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- name: Register that a reboot is required
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set_fact:
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kayobe_needs_reboot: true
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listen: reboot
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- name: Reboot when required
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hosts: iommu:vgpu
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tags:
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- reboot
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- iommu
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- vgpu
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tasks:
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- name: Reboot
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reboot:
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reboot_timeout: "{{ vgpu_reboot_timeout }}"
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become: true
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when:
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- kayobe_needs_reboot | default(false) | bool
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- vgpu_do_reboot | bool
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@ -127,5 +127,6 @@ openstackdocs_projects = [
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'ironic-python-agent',
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'ironic-python-agent',
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'kolla',
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'kolla',
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'kolla-ansible',
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'kolla-ansible',
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'nova',
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'neutron',
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'neutron',
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]
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]
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@ -23,4 +23,5 @@ options.
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docker-registry
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docker-registry
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seed-custom-containers
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seed-custom-containers
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infra-vms
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infra-vms
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vgpu
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nova-cells
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nova-cells
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310
doc/source/configuration/reference/vgpu.rst
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310
doc/source/configuration/reference/vgpu.rst
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@ -0,0 +1,310 @@
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============
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Virtual GPUs
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============
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Kayobe contains playbooks to configure virtualised GPUs on supported NVIDIA hardware.
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This allows you to statically create mdev devices that can be used by Nova to present
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a virtualised GPU to guest VMs. Known working GPUs are:
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- NVIDIA A100
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BIOS configuration
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==================
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Intel
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-----
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* Enable ``VT-x`` in the BIOS for virtualisation support.
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* Enable ``VT-d`` in the BIOS for IOMMU support.
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AMD
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---
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* Enable ``AMD-V`` in the BIOS for virtualisation support.
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* Enable ``AMD-Vi`` in the BIOS for IOMMU support.
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Example: Dell
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-------------
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Enabling SR-IOV with `racadm`:
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.. code:: shell
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/opt/dell/srvadmin/bin/idracadm7 set BIOS.IntegratedDevices.SriovGlobalEnable Enabled
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/opt/dell/srvadmin/bin/idracadm7 jobqueue create BIOS.Setup.1-1
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<reboot>
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Enabling CPU Virtualization with `racadm`:
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.. code:: shell
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/opt/dell/srvadmin/bin/idracadm7 set BIOS.ProcSettings.ProcVirtualization Enabled
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/opt/dell/srvadmin/bin/idracadm7 jobqueue create BIOS.Setup.1-1
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<reboot>
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Obtain driver from NVIDIA licensing portal
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==========================================
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Download NVIDIA GRID driver from `here <https://docs.nvidia.com/grid/latest/grid-software-quick-start-guide/index.html#redeeming-pak-and-downloading-grid-software>`__
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(This requires a login).
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.. _Configuration:
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Configuration
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=============
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.. seealso::
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For further context, please see:
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* :ref:`configuration-kayobe`
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Add hosts with supported GPUs to the ``compute-vgpu`` group. If using bifrost
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and the ``kayobe overcloud inventory discover`` mechanism, this can be achieved with:
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.. code-block:: yaml
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:caption: ``$KAYOBE_CONFIG_PATH/overcloud.yml``
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overcloud_group_hosts_map:
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compute-vgpu:
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- "computegpu000"
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Configure the location of the NVIDIA driver:
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.. code-block:: yaml
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:caption: ``$KAYOBE_CONFIG_PATH/vgpu.yml``
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---
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vgpu_driver_url: "https://example.com/NVIDIA-GRID-Linux-KVM-525.105.14-525.105.17-528.89.zip"
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If you don't know which vGPU types your card supports, these
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can be determined by following :ref:`VGPU_Types`.
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You can then define ``group_vars`` describing the vGPU configuration:
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.. code-block:: yaml
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:caption: ``$KAYOBE_CONFIG_PATH/inventory/group_vars/compute-vgpu/vgpu``
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#nvidia-692 GRID A100D-4C
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#nvidia-693 GRID A100D-8C
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#nvidia-694 GRID A100D-10C
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#nvidia-695 GRID A100D-16C
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#nvidia-696 GRID A100D-20C
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#nvidia-697 GRID A100D-40C
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#nvidia-698 GRID A100D-80C
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#nvidia-699 GRID A100D-1-10C
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#nvidia-700 GRID A100D-2-20C
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#nvidia-701 GRID A100D-3-40C
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#nvidia-702 GRID A100D-4-40C
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#nvidia-703 GRID A100D-7-80C
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#nvidia-707 GRID A100D-1-10CME
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vgpu_definitions:
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# Configuring a MIG backed VGPU
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- pci_address: "0000:17:00.0"
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mig_devices:
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# This section describes how to partition the card using MIG. The key
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# in the dictionary represents a MIG profile supported by your card and
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# the value is the number of MIG devices of that type that you want
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# to create. The vGPUS are then created on top of these MIG devices.
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# The available profiles can be found in the NVIDIA documentation:
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# https://docs.nvidia.com/grid/15.0/grid-vgpu-user-guide/index.html#virtual-gpu-types-grid-reference
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"1g.10gb": 1
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"2g.20gb": 3
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virtual_functions:
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# The mdev type is the NVIDIA identifier for a particular vGPU. When using
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# MIG backed vGPUs these must match up with your MIG devices. See the NVIDIA
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# vGPU types section in this document.
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- mdev_type: nvidia-700
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index: 0
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- mdev_type: nvidia-700
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index: 1
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- mdev_type: nvidia-700
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index: 2
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- mdev_type: nvidia-699
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index: 3
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# Configuring a card in a time-sliced configuration (non-MIG backed)
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- pci_address: "0000:65:00.0"
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virtual_functions:
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- mdev_type: nvidia-697
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index: 0
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- mdev_type: nvidia-697
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index: 1
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To apply this configuration, use:
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.. code:: shell
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(kayobe) $ kayobe overcloud host configure -t vgpu
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.. _VGPU_Types:
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NVIDIA vGPU types
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=================
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.. seealso::
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For further context, please see:
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* `NVIDIA docs on vGPU types <https://docs.nvidia.com/grid/15.0/grid-vgpu-user-guide/index.html#virtual-gpu-types-grid-reference>`__
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* :ref:`configuration-kolla-ansible`
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The NVIDIA vGPU drivers must be installed to be able to query for the available
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vGPU types. This can be achieved by not defining any virtual functions in the
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vGPU definition:
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.. code-block:: yaml
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:caption: ``$KAYOBE_CONFIG_PATH/inventory/group_vars/compute-vgpu/vgpu``
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vgpu_definitions:
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- pci_address: "0000:17:00.0"
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virtual_functions: []
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See :ref:`Configuration`. You can then use ``mdevctl`` to query for the
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available vGPU types.
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.. code:: shell
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mdevctl types
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.. _VGPU_Kolla_Configuration:
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Kolla Ansible configuration
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===========================
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.. seealso::
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For further context, please see:
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* :nova-doc:`Attaching virtual GPU devices to guests in the Nova documentation <admin/virtual-gpu.html>`
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* :ref:`configuration-kolla-ansible`
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To use the mdev devices that were created, modify ``nova.conf`` to add a list of mdev devices that
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can be passed through to guests:
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.. code-block:: ini
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:caption: ``$KAYOBE_CONFIG_PATH/kolla/config/nova/nova-compute.conf``
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{% raw %}
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{% if inventory_hostname in groups['compute-vgpu'] %}
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[devices]
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enabled_mdev_types = nvidia-700, nvidia-699, nvidia-697
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[mdev_nvidia-700]
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device_addresses = 0000:17:00.4,0000:17:00.5,0000:17:00.6
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mdev_class = CUSTOM_NVIDIA_700
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[mdev_nvidia-699]
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device_addresses = 0000:17:00.7
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mdev_class = CUSTOM_NVIDIA_699
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[mdev_nvidia-697]
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device_addresses = 0000:65:00.4,0000:65:00.5
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mdev_class = CUSTOM_NVIDIA_697
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{% endif %}
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{% endraw %}
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You will need to adjust the PCI addresses to match the virtual function
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addresses. These can be obtained by checking the mdevctl configuration after
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applying the :ref:`configuration <Configuration>`:
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.. code-block:: shell
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# mdevctl list
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73269d0f-b2c9-438d-8f28-f9e4bc6c6995 0000:17:00.4 nvidia-700 manual (defined)
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dc352ef3-efeb-4a5d-a48e-912eb230bc76 0000:17:00.5 nvidia-700 manual (defined)
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a464fbae-1f89-419a-a7bd-3a79c7b2eef4 0000:17:00.6 nvidia-700 manual (defined)
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f3b823d3-97c8-4e0a-ae1b-1f102dcb3bce 0000:17:00.7 nvidia-699 manual (defined)
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330be289-ba3f-4416-8c8a-b46ba7e51284 0000:65:00.4 nvidia-700 manual (defined)
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1ba5392c-c61f-4f48-8fb1-4c6b2bbb0673 0000:65:00.5 nvidia-700 manual (defined)
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f6868020-eb3a-49c6-9701-6c93e4e3fa9c 0000:65:00.6 nvidia-700 manual (defined)
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00501f37-c468-5ba4-8be2-8d653c4604ed 0000:65:00.7 nvidia-699 manual (defined)
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The mdev_class maps to a resource class that you can set in your flavor definition.
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Note that if you only define a single mdev type on a given hypervisor, then the
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mdev_class configuration option is silently ignored and it will use the ``VGPU``
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resource class (See `bug 1943934 <https://bugs.launchpad.net/nova/+bug/1943934>`__).
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To apply the configuration to Nova:
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.. code:: shell
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(kayobe) $ kayobe overcloud service deploy -kt nova
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OpenStack flavors
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=================
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Define some flavors that request the resource class that was configured in ``nova.conf``.
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An example definition, that can be used with ``openstack.cloud.compute_flavor`` Ansible module,
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is shown below:
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.. code-block:: yaml
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openstack.cloud.compute_flavor:
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name: "vgpu.a100.2g.20gb"
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ram: 65536
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disk: 30
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vcpus: 8
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is_public: false
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extra_specs:
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hw:cpu_policy: "dedicated"
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hw:cpu_thread_policy: "prefer"
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hw:mem_page_size: "1GB"
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hw:cpu_sockets: 2
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hw:numa_nodes: 8
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hw_rng:allowed: "True"
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resources:CUSTOM_NVIDIA_700: "1"
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Changing VGPU device types
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==========================
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Converting the second card to an NVIDIA-698 (whole card). The hypervisor
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should be empty so we can freely delete mdevs. If this is not the case you will need
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to check which mdevs are in use and use extreme caution. First clean up the mdev
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definitions to make room for the new device:
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.. code:: shell
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[stack@computegpu000 ~]$ sudo mdevctl list
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5c630867-a673-5d75-aa31-a499e6c7cb19 0000:21:00.4 nvidia-697 manual (defined)
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eaa6e018-308e-58e2-b351-aadbcf01f5a8 0000:21:00.5 nvidia-697 manual (defined)
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72291b01-689b-5b7a-9171-6b3480deabf4 0000:81:00.4 nvidia-697 manual (defined)
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0a47ffd1-392e-5373-8428-707a4e0ce31a 0000:81:00.5 nvidia-697 manual (defined)
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[stack@computegpu000 ~]$ sudo mdevctl stop --uuid 72291b01-689b-5b7a-9171-6b3480deabf4
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||||||
|
[stack@computegpu000 ~]$ sudo mdevctl stop --uuid 0a47ffd1-392e-5373-8428-707a4e0ce31a
|
||||||
|
|
||||||
|
[stack@computegpu000 ~]$ sudo mdevctl undefine --uuid 0a47ffd1-392e-5373-8428-707a4e0ce31a
|
||||||
|
[stack@computegpu000 ~]$ sudo mdevctl undefine --uuid 72291b01-689b-5b7a-9171-6b3480deabf4
|
||||||
|
|
||||||
|
[stack@computegpu000 ~]$ sudo mdevctl list --defined
|
||||||
|
5c630867-a673-5d75-aa31-a499e6c7cb19 0000:21:00.4 nvidia-697 manual (active)
|
||||||
|
eaa6e018-308e-58e2-b351-aadbcf01f5a8 0000:21:00.5 nvidia-697 manual (active)
|
||||||
|
|
||||||
|
# We can re-use the first virtual function
|
||||||
|
|
||||||
|
Secondly remove the systemd unit that starts the mdev device:
|
||||||
|
|
||||||
|
.. code:: shell
|
||||||
|
|
||||||
|
[stack@computegpu000 ~]$ sudo rm /etc/systemd/system/multi-user.target.wants/nvidia-mdev@0a47ffd1-392e-5373-8428-707a4e0ce31a.service
|
||||||
|
[stack@computegpu000 ~]$ sudo rm /etc/systemd/system/multi-user.target.wants/nvidia-mdev@72291b01-689b-5b7a-9171-6b3480deabf4.service
|
||||||
|
|
||||||
|
Adapt your :ref:`Kayobe <Configuration>` and :ref:`Kolla Ansible <VGPU_Kolla_Configuration>` configuration to
|
||||||
|
match the desired state and then re-run host configure:
|
||||||
|
|
||||||
|
.. code:: shell
|
||||||
|
|
||||||
|
(kayobe) $ kayobe overcloud host configure --tags vgpu --limit computegpu000
|
||||||
|
|
||||||
|
Check the result:
|
||||||
|
|
||||||
|
.. code:: shell
|
||||||
|
|
||||||
|
[stack@computegpu000 ~]$ mdevctl list
|
||||||
|
5c630867-a673-5d75-aa31-a499e6c7cb19 0000:21:00.4 nvidia-697 manual
|
||||||
|
eaa6e018-308e-58e2-b351-aadbcf01f5a8 0000:21:00.5 nvidia-697 manual
|
||||||
|
72291b01-689b-5b7a-9171-6b3480deabf4 0000:81:00.4 nvidia-698 manual
|
||||||
|
|
||||||
|
Reconfigure nova to match the change:
|
||||||
|
|
||||||
|
.. code:: shell
|
||||||
|
|
||||||
|
(kayobe) $ kayobe overcloud service reconfigure -kt nova --kolla-limit computegpu000 --skip-prechecks
|
||||||
@ -41,8 +41,11 @@ controllers
|
|||||||
[storage]
|
[storage]
|
||||||
# Empty group to provide declaration of storage group.
|
# Empty group to provide declaration of storage group.
|
||||||
|
|
||||||
[compute]
|
[compute-vgpu]
|
||||||
# Empty group to provide declaration of compute group.
|
# Empty group to provide declaration of compute-vgpu group.
|
||||||
|
|
||||||
|
[compute:children]
|
||||||
|
compute-vgpu
|
||||||
|
|
||||||
[overcloud:children]
|
[overcloud:children]
|
||||||
controllers
|
controllers
|
||||||
@ -51,6 +54,14 @@ monitoring
|
|||||||
storage
|
storage
|
||||||
compute
|
compute
|
||||||
|
|
||||||
|
###############################################################################
|
||||||
|
# Feature control groups
|
||||||
|
[vgpu:children]
|
||||||
|
compute-vgpu
|
||||||
|
|
||||||
|
[iommu:children]
|
||||||
|
vgpu
|
||||||
|
|
||||||
###############################################################################
|
###############################################################################
|
||||||
# Service groups.
|
# Service groups.
|
||||||
|
|
||||||
|
|||||||
22
etc/kayobe/vgpu.yml
Normal file
22
etc/kayobe/vgpu.yml
Normal file
@ -0,0 +1,22 @@
|
|||||||
|
---
|
||||||
|
################################################################################
|
||||||
|
# VGPU configuration.
|
||||||
|
|
||||||
|
# URL pointing to location of GRID driver. Examples are:
|
||||||
|
# "file://path/on/ansible/control/host"
|
||||||
|
# "http://webserver/NVIDIA-GRID-Linux-KVM-525.105.14-525.105.17-528.89.zip"
|
||||||
|
# Default is: None.
|
||||||
|
#vgpu_driver_url:
|
||||||
|
|
||||||
|
# Flag to control whether the vGPU playbook should automatically reboot the
|
||||||
|
# hypervisor. Note: this is necessary for the driver to be loaded correctly.
|
||||||
|
# Caution should be used when changing this option. Default is true.
|
||||||
|
#vgpu_do_reboot:
|
||||||
|
|
||||||
|
# Time to wait when rebooting the host before failing.
|
||||||
|
# Default is 600 (seconds).
|
||||||
|
#vgpu_reboot_timeout:
|
||||||
|
|
||||||
|
###############################################################################
|
||||||
|
# Dummy variable to allow Ansible to accept this file.
|
||||||
|
workaround_ansible_issue_8743: yes
|
||||||
@ -0,0 +1,7 @@
|
|||||||
|
---
|
||||||
|
features:
|
||||||
|
- |
|
||||||
|
Adds initial support for configuring NVIDIA vGPUs. For more information please see
|
||||||
|
the `new documentation
|
||||||
|
<https://docs.openstack.org/kayobe/latest/configuration/reference/vgpu.yml>`_
|
||||||
|
for this feature.
|
||||||
@ -7,6 +7,8 @@ collections:
|
|||||||
version: 1.1.1
|
version: 1.1.1
|
||||||
- name: openstack.cloud
|
- name: openstack.cloud
|
||||||
version: '<3'
|
version: '<3'
|
||||||
|
- name: stackhpc.linux
|
||||||
|
version: 1.1.0
|
||||||
|
|
||||||
roles:
|
roles:
|
||||||
- src: ahuffman.resolv
|
- src: ahuffman.resolv
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user