News for hackers. Stuff that matters.

A comment on Tinygrad: Hacked 4090 driver to enable P2P. Parent comment

Re:Tinygrad: Hacked 4090 driver to enable P2P by georgehotz on Friday April 12, 2024 @02:25PM (#40016085)
It should if your 3090s have Resizable BAR support in the VBIOS. AFAIK most card manufacturers released BIOS updates enabling this.

Re: 3090 NVLink, that only allows pairs of cards to be connected. PCIe allows full fabric switch of many cards.

[ Parent | on HN ]
Re:Tinygrad: Hacked 4090 driver to enable P2P by Ratiofarmings on Friday April 12, 2024 @05:15PM (#40017749)
In cases where they didn't, the techpowerup vBIOS collection solves the problem.
[ Parent | on HN ]
Re:Tinygrad: Hacked 4090 driver to enable P2P by learnedmachine on Monday April 15, 2024 @03:12PM (#40044546)
Thanks for the amazing work! I tried the driver with some 3090s (all of which show the 32G line with lspci -s 01:00.0 -v) and while torch says I have p2p access, I can't get it to work with anything as I get illegal memory access errors.
[ Parent | on HN ]