NVIDIA GPU passthrough multiple VMs

[martijnk]

Hi,

With VMware/Xenserver you are able to split the GPU in several 'vGPUs' so you can have e.g. 16 VMs each using 1/16th of the GPU power.

Is this possible with Proxmox? Or can I only passthrough the entire device to one VM only?

Thx.

 

[dcsapak]

this is only possible for 'special' gpus and if the drivers are available (i am not sure nvidia gives out those drivers for generic linux/kvm)
for amd there is at least one card that should work, though there is a custom kernel module that needs to be compiled https://pve.proxmox.com/wiki/MxGPU_with_AMD_S7150_under_Proxmox_VE_5.x
also some intel igpu have that feature also (called gvt-g)

all 'normal' gpus can only be passed-through to one vm at a time (i believe this is also true for xenserver. for vmware i do not know)

 

[martijnk]

this is only possible for 'special' gpus and if the drivers are available (i am not sure nvidia gives out those drivers for generic linux/kvm)
for amd there is at least one card that should work, though there is a custom kernel module that needs to be compiled https://pve.proxmox.com/wiki/MxGPU_with_AMD_S7150_under_Proxmox_VE_5.x
also some intel igpu have that feature also (called gvt-g)

all 'normal' gpus can only be passed-through to one vm at a time (i believe this is also true for xenserver. for vmware i do not know)

Yeah I was talking about the Teslas and such, I have succesfully used it on vmware and xen but you need licensing as well.

Ok thanks for the answer I guess it's not worth the trouble trying to achieve it with KVM.