[Openmp-dev] OpenMP in LLVM Multi-company Telecom Meeting Minutes April 08th
Johannes Doerfert via Openmp-dev
openmp-dev at lists.llvm.org
Wed Apr 8 15:52:07 PDT 2020
Some comments ;)
On 4/8/20 2:56 PM, Narayanaswamy, Ravi via Openmp-dev wrote:
> Next Meeting : April 22nd
>
> Opens:
>
> * Johannes requested developers to participate in reviews to make code robust.
> * stream pool
>
> * Shilei has posted support for fixing the correctness of device synchronization with streams here https://reviews.llvm.org/D77412
>
> * Async support in target library
> * To support async, the current _tgt_ API for plugin was changed to add an additional argument. https://reviews.llvm.org/D77005
>
> We had agreed previous any exposed API should not change but new APIs will be added and the old API can internally call the new API
>
> * AMD plugin
> * Nice if AMD plugin can be committed to llvm.org. This will enable testing the rewrite of device rtl into common/device specific partition
Especially the plugin can than be split into common and device specific.
> * Greg said they are working on upstreaming the code. This code is currently available for all to access in their github
> * NEC SX-Aurora plugin
> * New plugin for NEC SX-Aurora is being developed. Can be found here https://reviews.llvm.org/D76843
> * The activity of partitioning device rtl was on hold as Ron was spending quality time as proud dad. Congratulations.
Jon, not Ron ;)
> * Cuda requirement has been removed
Not yet. We have a plan to do so. Work is needed though.
> * Shared data is supported using declare target and device code using target pragmas.
That's the plan I mention above and in the RFC, yes.
>
>
>
> Development Activity:-
>
> * Unshackled threads
> * Shilei presented the design of a prototype to add unshackled threads in openmp runtime to support async target tasks. The presentation is attached
>
> There are still issue with how to synchronize with other task and with task wait.
>
> Alex mentioned we already have support for detach task for use with target task.
>
> We need to create examples and check if they are handled in both the schemes. (unshackled or existing implementation)
>
> * Fat Static Library
> * George has uploaded the support in offload bundler here https://reviews.llvm.org/D74262
> * He will be uploading the driver changes.
> * math support in target regions
> * Support has been added.
> * omp loop, omp metadirective, omp interop
> * Johannes has prototypes implemented omp loop and metadirectives
> * Was asking if anyone want to participate in omp interop.
> * Declare variants
> * Johannes has implemented support for begin/end declare variants.
>
> Roll Call :
>
> Company
>
> Attendees
>
> 8-Jan
>
> 29-Jan
>
> 12-Feb
>
> 26-Feb
>
> 11-Mar
>
> 25-Mar
>
> 8-Apr
>
> AMD
>
>
>
>
>
>
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>
>
>
>
>
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>
>
>
>
>
>
> Greg Rodgers
>
>
>
> x
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>
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>
>
>
>
>
>
> x
>
>
>
> Ashwin Aji
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Jan Sjodin
>
>
>
> x
>
>
>
>
>
>
>
>
>
>
>
>
>
> Ron Lieberman
>
>
>
> x
>
>
>
>
>
>
>
>
>
> x
>
>
>
> sameer Sahasrabuddhe
>
>
>
>
>
>
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>
>
>
>
>
> Jonathan Chesterfield
>
> x
>
> x
>
> x
>
> x
>
> x
>
> x
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>
>
>
>
> Andrey Kasaurov
>
>
>
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>
> ANL
>
> Hal Finkel
>
>
>
>
>
>
>
>
>
>
>
> x
>
> x
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>
>
> Michael Kruse
>
>
>
>
>
> x
>
> x
>
> x
>
> x
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> x
>
>
>
> Johannes Doerfert
>
> x
>
> x
>
> x
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>
>
>
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>
>
> x
>
>
>
> Ye Luo
>
>
>
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>
>
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>
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>
>
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> x
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> ARM
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> Andrzej Warzynski
>
>
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> x
>
>
>
>
>
>
>
>
>
>
>
>
>
> Francesco Petrogalli
>
>
>
> x
>
> x
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> x
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>
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> x
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>
>
> IBM
>
> Alexandre Eichenberger
>
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> Carlo Bertolli
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> Kelvin Li
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> x
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> x
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> x
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>
>
>
>
>
> Doru
>
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>
>
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> Alexey Bataev
>
> x
>
> x
>
> x
>
> x
>
> x
>
> x
>
> x
>
> Intel
>
> Andrey Churbanov
>
>
>
>
>
>
>
>
>
>
>
> x
>
> x
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>
>
> Ravi Narayanaswamy
>
> x
>
> x
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> x
>
> x
>
> x
>
> x
>
> x
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>
>
> Serguei Dmitriev
>
>
>
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>
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> Rajiv Deodhar
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> Lorri Menard
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> Terry Wilmarth
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> Rao, Prem
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> Hansang Bae
>
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>
>
>
>
>
> Xinmin Tian
>
>
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>
>
>
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>
>
>
>
>
>
> Sirram Aananthakrishnan
>
>
>
>
>
> x
>
> x
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>
>
>
>
>
>
> Jeff Hammond
>
>
>
>
>
>
>
>
>
>
>
> x
>
>
>
>
>
> George Rokos
>
> x
>
> x
>
> x
>
> x
>
> x
>
> x
>
> x
>
>
>
> Alex Duran
>
>
>
>
>
>
>
>
>
>
>
>
>
> x
>
>
>
> Micheal Klemm
>
>
>
>
>
>
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> x
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>
>
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>
>
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> HPE
>
> Deepak Eachempati
>
>
>
> x
>
> x
>
> x
>
>
>
> x
>
> x
>
> Micron
>
> John Leidel
>
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> Nvidia
>
> James Beyer
>
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> ORNL
>
> Graham Lopez
>
>
>
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>
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>
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>
>
>
>
>
>
> Joel Denny
>
>
>
> x
>
>
>
> x
>
> x
>
> x
>
> x
>
>
>
> Geoffroy Vallee
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Fady Ghanim
>
> x
>
> x
>
> x
>
> x
>
> x
>
>
>
>
>
>
>
> Oscar Hernandez
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> SBU/BNL
>
> Lingda Li
>
>
>
>
>
> x
>
>
>
>
>
>
>
>
>
>
>
> Jose Monlsave
>
>
>
>
>
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>
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>
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>
>
>
>
> Vivek Kale
>
>
>
> x
>
>
>
>
>
>
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>
>
>
>
>
>
> Shilei Tian
>
>
>
>
>
>
>
>
>
>
>
>
>
> x
>
> TU Darmstadt
>
> Lukas Sommer
>
> x
>
>
>
> x
>
> x
>
>
>
>
>
> x
>
> BrookHavens
>
> Abid Malik
>
> x
>
>
>
>
>
>
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>
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>
>
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>
> Universidata EAFIT Colombia
>
> Hamilton Tobon Mosquera
>
>
>
>
>
>
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>
>
>
>
>
>
> x
>
>
>
> .........................................................................................................................................
> [Blue Jeans]<https://bluejeans.com>
>
>
> Johannes Doerfert<mailto:jdoerfert at anl.gov> has invited you to a meeting.
>
>
>
>
> Join Meeting <https://bluejeans.com/544112769?src=htmlEmail>
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> (Join from computer or phone)
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> ________________________________
>
>
>
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>
> Meeting ID: 544 112 769
>
>
> ________________________________
>
>
>
> Description:
> Bi-weekly meeting to discuss OpenMP support in LLVM.
>
>
> ________________________________
>
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>
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