> -----Original Message----- > From: Jason Gunthorpe <jgg@xxxxxxxx> > Sent: Tuesday, November 24, 2020 7:36 AM > To: Daniel Vetter <daniel@xxxxxxxx> > Cc: Xiong, Jianxin <jianxin.xiong@xxxxxxxxx>; Leon Romanovsky <leon@xxxxxxxxxx>; linux-rdma@xxxxxxxxxxxxxxx; dri- > devel@xxxxxxxxxxxxxxxxxxxxx; Doug Ledford <dledford@xxxxxxxxxx>; Vetter, Daniel <daniel.vetter@xxxxxxxxx>; Christian Koenig > <christian.koenig@xxxxxxx> > Subject: Re: [PATCH rdma-core 3/5] pyverbs: Add dma-buf based MR support > > On Tue, Nov 24, 2020 at 04:16:58PM +0100, Daniel Vetter wrote: > > > Compute is the worst, because opencl is widely considered a mistake > > (maybe opencl 3 is better, but nvidia is stuck on 1.2). The actually > > used stuff is cuda (nvidia-only), rocm (amd-only) and now with intel > > also playing we have xe (intel-only). > > > It's pretty glorious :-/ > > I enjoyed how the Intel version of CUDA is called "OneAPI" not "Third API" ;) > > Hopefuly xe compute won't leave a lot of half finished abandoned kernel code like Xeon Phi did :( > > > Also I think we discussed this already, but for actual p2p the intel > > patches aren't in upstream yet. We have some internally, but with very > > broken locking (in the process of getting fixed up, but it's taking time). > > Someone needs to say this test works on a real system with an unpatched upstream driver. > > I thought AMD had the needed parts merged? Yes, I have tested these with AMD GPU. > > Jason
