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Date: Thu, 23 Sep 2021 16:25:08 -0400 From: Felix Kuehling <felix.kuehling@....com> To: Linux MM <linux-mm@...ck.org>, linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org, Maling list - DRI developers <dri-devel@...ts.freedesktop.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Cc: Christoph Hellwig <hch@....de>, Jason Gunthorpe <jgg@...lanox.com>, Jerome Glisse <jglisse@...hat.com>, Ralph Campbell <rcampbell@...dia.com>, Theodore Ts'o <tytso@....edu>, Andrew Morton <akpm@...ux-foundation.org>, Mel Gorman <mgorman@...hsingularity.net>, Peter Zijlstra <peterz@...radead.org>, "Phillips, Daniel" <Daniel.Phillips@....com>, "Sierra Guiza, Alejandro (Alex)" <Alex.Sierra@....com>, Daniel Stone <daniel@...ishbar.org> Subject: Re: BoF at LPC: Documenting the Heterogeneous Memory Model Architecture Change of plan: Instead of a BoF, this is now a session in the "GPU/media/AI buffer management and interop MC" micro conference. Thank you Daniel Stone for making that happen. https://linuxplumbersconf.org/event/11/contributions/1112/ It is scheduled for tomorrow (Friday) 08:40-10:00 Pacific, 11:40-13:00 Eastern, 15:40-17:00 UTC. I hope to see you all tomorrow, Felix On 2021-09-21 3:19 p.m., Felix Kuehling wrote: > As the programming models for GPU-based high-performance computing > applications are evolving, HMM is helping us integrate the GPU memory > management more closely with the kernel's virtual memory management. > As a result we can provide a shared virtual address space with > demand-paging and page-based migrations of anonymous pages to/from > device memory. A patch series by AMD [1, 2] to add support for > cache-coherent, CPU-accessible device memory has brought up some > fairly fundamental questions about HMM and its interaction with > virtual memory management, page cache and file systems. We'd like to > use the chance of getting together for a BoF [3] at LPC to raise > awareness for HMM outside the GPU driver code, identify gaps in the > architectural documentation and clarify our priorities for future > development. > > Thank you, Daniel, for suggesting the BoF and getting it scheduled. > It's set for Friday, 10am Pacific, 1pm Eastern, 5pm UTC. > > I am registered at LPC. Daniel got a speaker's pass. We're still > trying to work something out for Alex. > > I hope to see many of you on Friday. > > Best regards, > Felix > > > [1] https://patchwork.freedesktop.org/series/94611/ > [2] https://patchwork.freedesktop.org/series/90706/ > [3] https://linuxplumbersconf.org/event/11/contributions/1123/ >
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