invokeai-xpu

InvokeAI running on Intel Arc GPUs using PyTorch XPU (Level Zero), deployed headlessly on Ubuntu 24.04 LXC with systemd.

InvokeAI on Intel GPU (XPU, no CUDA)

This repo is basically a “what finally worked” script for running InvokeAI on Intel GPUs using PyTorch XPU on Ubuntu 24.04 inside a Proxmox LXC.

No CUDA.
No Docker.
No fancy setup.

Just: make InvokeAI run on Intel GPU without fighting it for days.

Disclaimer: this is purely vibecoded.

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Why this repo exists

I have an Intel Arc B50 and too much free time. I like how easy InvokeAI is to use and wanted to see if I could make it work with the Arc.

After a long debugging session, this script captures everything that was needed, in the order required to actually get it working:

• PyTorch XPU
• InvokeAI 6.12
• Intel Arc / Intel XPU
• Headless Ubuntu 24.04
• Proxmox LXC

So this is:

• ✅ A reproducible install that runs InvokeAI on Intel XPU
• ✅ Headless, systemd-managed, browser UI accessible
• ✅ Tested on Intel Arc B50
• ✅ Can also work on direct Ubuntu installs (non-LXC)
• ❌ Not optimized
• ❌ Not officially supported
• ❌ Not guaranteed to survive future InvokeAI releases

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What this script does

The install script (install-invoke-xpu.sh) performs the following:

System & GPU

• Installs Intel GPU userspace:
  • Level Zero
  • OpenCL ICD
  • Media drivers
• Verifies /dev/dri/renderD* access inside LXC

Python & PyTorch

• Creates a clean Python virtualenv at /opt/invokeai-xpu
• Installs PyTorch XPU wheels
• Verifies the installed torch build still has XPU support
• Reinstalls the XPU torch stack if InvokeAI replaces it

InvokeAI

• Installs InvokeAI 6.12.0
• Writes a minimal XPU-safe InvokeAI config
• Applies the upstream MordragT patch
• Falls back to a local patch if the URL is unavailable
• Applies compatibility fixes for InvokeAI 6.12

Runtime

• Makes intel_extension_for_pytorch (IPEX) optional
• Guards against missing torch.xpu.mem_get_info()
• Fixes invocation stats for XPU when VRAM info is unavailable
• Creates a systemd service
• Verifies XPU availability at startup
• Runs InvokeAI fully headless
• Exposes the web UI over HTTP

End result

InvokeAI runs on Intel GPU, images generate successfully, and the UI is accessible from a browser.

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Known issues

• InvokeAI cannot accurately detect available VRAM on Intel XPU
  (workarounds are applied; generation still works)

• Patchmatch may fail to compile/load
  (this is non-fatal and does not affect generation)

• GPU may stay “awake” after generation unless the service is stopped

  On Proxmox, current workaround is to run on the host:

  intel_gpu_top -l

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Requirements

Proxmox host

• Intel GPU
• XE driver
• GPU passed through to the LXC

Example container config (/etc/pve/lxc/<id>.conf):

lxc.cgroup2.devices.allow: c 226:1 rwm  
lxc.cgroup2.devices.allow: c 226:128 rwm  
lxc.mount.entry: /dev/dri/card1 dev/dri/card1 none bind,optional,create=file  
lxc.mount.entry: /dev/dri/renderD128 dev/dri/renderD128 none bind,optional,create=file

⚠️ Device numbers may change after updates. Check:

ls -l /dev/dri  
ls -l /dev/dri/by-path  

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LXC container

• Ubuntu 24.04 LTS
• Fresh install recommended
• Internet access
• Privileged container
• Nesting enabled

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Quick start

git clone https://github.com/Raasu2/invokeai-xpu.git  
cd invokeai-xpu  
chmod +x install-invoke-xpu.sh  
sudo bash install-invoke-xpu.sh  

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Optional: VRAM override

Change the VRAM override in install.conf to your GPU's VRAM.

INVOKEAI_XPU_VRAM_TOTAL_GB="16"

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Thanks / Credits

Huge thanks to MordragT for the original InvokeAI XPU patches.