Support for Arc a770 intel GPU and other Intel GPU cards.

[kaelsonofkrypto]

Please add support for Arc a770 intel GPU if possible and other Intel GPU cards. I wasn't able to get my intel card to be recognized in iw3. As a result i can only run off cpu with my pc that has the intel gpu. Thanks

[nagadomi]

I do not have Intel Arc.
If Intel GPU instance is available on AWS or GCP in the future, I might be able to develop it.

[AndreaJaynegit]

Ive an A770, its got 16gb of VRAM so a lot of potential. Do have it working with OWL3d, but wondering if there are options here too. Works for image generation LLM etc,

[nagadomi]

I added a simple document https://github.com/nagadomi/nunif/blob/master/INSTALL-xpu.md
As I mentioned, I haven't tested it myself, so I'm not sure if it works.

[AndreaJaynegit]

Well, that all installed brilliantly! Thank you very much. I'm coding at about 6.5FPS which is greatly improved. Only utilizing about 6gb of VRAM so now sure if more I can use there.

[nagadomi]

Good to know it’s working.
More VRAM is used when increasing Depth Batch Size(--batch-size) and Worker Threads(--max-workers). Not sure if it improves performance.

[AndreaJaynegit]

Ok thanks for that, I'll look into what those two elements do and see if its worth trying. Thank you for the help sincerely.

[nagadomi]

#77 (comment) should be helpful.