Question

You administer a shared server hosting virtual desktops for a data-science team using NVIDIA vGPU. Each VM is assigned a vGPU profile with a fixed frame buffer allocation. A team lead asks whether you can place more VMs on the GPU than the frame buffer would normally allow, arguing that not all users work at the same time. What is the correct behavior of vGPU frame buffer allocation you should communicate?

Accepted Answer

vGPU frame buffer is statically partitioned per profile and cannot be oversubscribed; the number of VMs is capped by GPU memory divided by the profile size

Answer

vGPU dynamically pages idle VMs' frame buffer to system RAM, so you can safely assign twice as many VMs as the profile normally permits

Answer

vGPU frame buffer is thin-provisioned by default, allowing overcommit as long as concurrent active usage stays below total GPU memory

Answer

Enabling MIG mode on the vGPU host removes the frame buffer limit and lets any number of VMs share the memory pool