[ovirt-users] vGPU on ovirt 4.3

[kim . kargaard]

Hi,

We are looking at getting some GPU's for our servers and to use vGPU 
passthrough so that our students can do some video renders on the VM's. Does 
anyone have good experience with the Nvidia Quadro RTX6000 or RTX8000 and ovirt 
4.3? 

Thanks.

Kim
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[ovirt-users] vGPU becomes very inefficient when I use it in ovirt instead of qemu-kvm

[weizhengya16]

We distribute vGpu in order to use it in virtual machines. I find the same type 
vGpu get differently performance in Ovirt and Qemu-kvm .

when I distribute a vGPU to Ovirt virtual machine,it's performance becomes very 
strange.Some games can run efficiently and  attach 200+ fps.However,in some 
other games,it's can't even attach 10 FPS.
But in Qemu-kvm,the vGpu's performance always efficiently,can run these games 
all in 200+fps. 
  
I've been stuck with this for weeks and I have to make it always runs 
efficiently. Can someone help me?Thank you very very very much
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[ovirt-users] vGPU remote console problems

[Edward Berger]

A coworker and I are trying to bring up some nvidia vGPU VMs on ovirt 4.3,
but are experiencing issues with the remote consoles for both Windows and
Linux.

A windows10 VM for example works OK with a windows remote desktop client
after enabling the service inside the VM, but using the oVirt VM portal
spice/vnc seems to cause the mouse pointer to disappear and clicks seem to
go nowhere.

We're more likely to want linux VMs though.
CentOS not booting all the way to gnome desktop after installing the nvidia
driver.

What works well for you?
Are there known tweaks I should try to make?
Any helpful hints?

Thanks!
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[ovirt-users] vGPU with NVIDIA M60 mdev_type not showing

[Josep Manel Andrés Moscardó]

Hi all,
I have a host with 2 M60 with the latest supported driver installed, and 
working as you can see:


root@esxh-03 vdsm]# lsmod | grep vfio
nvidia_vgpu_vfio   49475  0
nvidia  16633974  1 nvidia_vgpu_vfio
vfio_mdev  12841  0
mdev   20336  2 vfio_mdev,nvidia_vgpu_vfio
vfio_iommu_type1   22300  0
vfio   32656  3 vfio_mdev,nvidia_vgpu_vfio,vfio_iommu_type1
[root@esxh-03 vdsm]# nvidia-smi
Mon Jan 14 17:39:30 2019
+-+
| NVIDIA-SMI 410.91   Driver Version: 410.91   CUDA Version: N/A 
 |

|---+--+--+
| GPU  NamePersistence-M| Bus-IdDisp.A | Volatile 
Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap| Memory-Usage | GPU-Util 
Compute M. |

|===+==+==|
|   0  Tesla M60   Off  | :05:00.0 Off | 
 Off |
| 16%   27CP041W / 120W | 14MiB /  8191MiB |  0% 
Default |

+---+--+--+
|   1  Tesla M60   Off  | :06:00.0 Off | 
 Off |
| 17%   24CP039W / 120W | 14MiB /  8191MiB |  0% 
Default |

+---+--+--+
|   2  Tesla M60   Off  | :84:00.0 Off | 
 Off |
| 15%   28CP041W / 120W | 14MiB /  8191MiB |  0% 
Default |

+---+--+--+
|   3  Tesla M60   Off  | :85:00.0 Off | 
 Off |
| 16%   25CP040W / 120W | 14MiB /  8191MiB |  0% 
Default |

+---+--+--+


+-+
| Processes:   GPU 
Memory |
|  GPU   PID   Type   Process name Usage 
 |

|=|
|  No running processes found 
 |

+-+


But the issue is that when I do :

# vdsm-client Host hostdevListByCaps

I don't see any "mdev" device. Also the directory  /sys/class/mdev_bus 
is not existing.


Am I missing something ?

Cheers.



smime.p7s
Description: S/MIME Cryptographic Signature
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[ovirt-users] vGPU

[董青龙]

Hi all,
I am testing vGPU in ovirt4.2. I have a nvidia p100 GPU installed in 
the host and I have installed the correct dirver. I followed this 
page(https://www.ovirt.org/documentation/install-guide/appe-Preparing_a_Host_for_vGPU_Installation/)
 but I failed. In the "Host Devices tab" I got an device called "GP100GL [Tesla 
P100 PCIe 16GB]". I could not find any device of "mdev type". Anyone can help 
me? Thanks a lot!___
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[ovirt-users] vGPU not available in "type mdev"

[Marc Le Grand]

Hello
I followed the tutorial regarding vGPU but it's not working, i i guess it's a 
Nvidia licence issue, but i need to be sure.
My node is installed using the node ISO image.
I just removed the nouveau driver ans installed the nVidia one.
My product is : "GK106GL [Quadro K4000]"
My driver is : NVIDIA-Linux-x86_64-390.87
In the host peripherals I see my card (pci__05_00_0) listed, but the column 
"type mdev" is empty, as the doc says I should see vGPU i guess something is 
missing.
I took a look, there seems to be nVidia vGPU copatible driver, but no trace of 
it. The only vGPU stuff i found it's "NVIDIA VIRTUAL GPU" and i understand I 
have to pay to use vGPU on my nVidia card.
is this correct or no ? 
If i'm supposed to pay is there a free workaround ?
thanks for your help
marc
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[ovirt-users] vGPU: oVirt 4.2.6.1 + GRID K2

[femi adegoke]

Anyone had luck using a GRID K2 for vGPU pass-through?
I can't seem to install the driver (367.128-370.28)
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[ovirt-users] vGPU question

[femi adegoke]

Planning to build a hyperconverged 3 host w HE oVirt cluster + Gluster.

Is it ok if only one of the hosts has a GPU?
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[ovirt-users] vGPU VM not starting

[Callum Smith]

Dear All,

Our vGPU installation is progressing, though the VM is failing to start.

2018-05-16 22:57:34,328+0100 ERROR (vm/1bc9dae8) [virt.vm] 
(vmId='1bc9dae8-a0ea-44b3-9103-5805100648d0') The vm start process failed 
(vm:943)
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 872, in 
_startUnderlyingVm
self._run()
  File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2872, in _run
dom.createWithFlags(flags)
  File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", 
line 130, in wrapper
ret = f(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 92, in 
wrapper
return func(inst, *args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1099, in 
createWithFlags
if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', 
dom=self)
libvirtError: Cannot get interface MTU on '': No such device

That's the specific error, some other information. It seems the GPU 
'allocation' of uuid against the nvidia-xx mdev type is proceeding correctly, 
and the device is being created by the VM instantiation but the VM does not 
succeed in going up with this error. Any other logs or information relevant to 
help diagnose?

Regards,
Callum

--

Callum Smith
Research Computing Core
Wellcome Trust Centre for Human Genetics
University of Oxford
e. cal...@well.ox.ac.uk

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[ovirt-users] vGPU setup guide

[Callum Smith]

Dear All,

IS this the most current and useful example of implenting vGPUs in oVirt? I had 
understood that 4.2 had NVIDIA GRID support as a flagship feature, but this 
appears to be 4.1.4? It seems a very reasonable and decent guide, just don't 
want to go down this route if there's alternatives now available in 4.2.x.

https://mpolednik.github.io/2017/09/13/vgpu-in-ovirt/

Regards,
Callum

--

Callum Smith
Research Computing Core
Wellcome Trust Centre for Human Genetics
University of Oxford
e. cal...@well.ox.ac.uk

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