Re: BoF at LPC: Documenting the Heterogeneous Memory Model Architecture

[Felix Kuehling]

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/