US ATLAS HL-LHC computing discussion

[Walter Lampl <Walter.Lampl AT cern.ch>]

Hi Torre, 

where do we present our basic framework, like the Gaudi component model and 
the athena MT scheduler? I this part of your talk or does this come only on 
Thursday in Scott’s talk? Maybe a 10-15 minutes talk on this topic on 
Wednesday would make sense. 

- Walter



> On Jul 17, 2018, at 9:59, Torre Wenaus <wenaus AT gmail.com> wrote:
> 
> Hi All,
> Some updates on the agenda...
> https://indico.cern.ch/event/742090/
> 
> We will have short welcoming talks from CSI (Deputy Director Frank 
> Alexander) and US ATLAS (US ATLAS Operations Manager Srini Rajagopalan) 
> giving the motivations and background for the workshop. Frank will then get 
> the workshop started with an introduction to CSI.
> 
> We then have a series of talks and discussion periods that introduce the 
> computing and software domains of ATLAS, and the challenges they present 
> for adapting to new architectures and the HL-LHC. Guidance on the talks is 
> that they should open with an overview of the domain for a non-specialist 
> audience, and then in the latter part of the talk drill down to the status 
> and potential for reengineering (MT, GPU utilization, applying ML, …). 
> Purpose of the talks is to share understanding of the software, physics 
> objectives, characteristics of existing apps, performance analysis, 
> exascale porting potential.
> 
> Then we'll hear the perspectives of an experienced ATLAS physicist Peter 
> Loch, bringing an analysis user perspective and a knowledge of the 
> challenges presented by prospective porting targets like fast simulation; 
> and ATLAS physicist Amir Farbin with extensive experience in ML and GPU 
> utilization who will bring us interesting and very relevant ideas and 
> proposals. 
> 
> We then have a series of CSI software and technology talks and surrounding 
> discussion, being organized by Nick D'Imperio of CSI. He's arranging a 
> series of talks with plenty of discussion time.
> 
> Eric has suggested that this CSI block should come earlier, on the first 
> day, thoughts on that? My thinking was that with the ATLAS talks first, the 
> CSI material could be tuned to the needs and opportunities emerging from 
> the ATLAS talks.
> 
> Comments appreciated!
> 
>   Torre
> 
> On Wed, Jul 11, 2018 at 11:17 AM Torre Wenaus <wenaus AT gmail.com> wrote:
> Hi,
> I've fleshed out the agenda for the workshop
> https://indico.cern.ch/event/742090/
> following the draft in the googledoc.
> Comments and further content are welcome
>   Torre
> 
> On Wed, Jul 4, 2018 at 2:26 PM Torre Wenaus <wenaus AT gmail.com> wrote:
> Hi all,
> Welcome to the US ATLAS HL-LHC mailing list. The first thing we'll use it 
> for is planning the BNL CSI workshop July 25-27 2018. Please invite people 
> to join the list, it's open.
> 
> Our planning googledoc for the workshop is here… (editing is on)
> 
> https://docs.google.com/document/d/1DQM-8h7eFSyvGIh23aFphNv5V35DnSZYv4NjSfiL9H0/edit?usp=sharing
> 
> I've added in the doc a strawman draft agenda based on our discussions, 
> please comment here or in the document:
> 
>       • Wed: the landscape, the problems, discussions on potential help and 
> collaboration
>               • As discussed on June 14, a series of talks on specific 
> aspects of ATLAS software: describing the software domain, describing the 
> status and potential for reengineering (MT, GPU utilization, applying ML, 
> …), plus generous discussion time. Share understanding of the codes, 
> physics objectives, characteristics of existing apps, performance analysis, 
> porting potential
>               • Wed am  9-1
>                       • CSI intro  25+10’
>                       • ATLAS computing challenges towards HL-LHC - Torre 
> Wenaus  25+10’
>                       • Tracking software - Ed Moyse, Paolo Calafiura  
> 30+30’
>                       • Calorimeter software - Walter Lampl  30+30’
>               • Wed pm  2-6
>                       • Simulation software (fast and full) - Heather Gray  
> 40+40’
>                       • I/O and persistency software - David Malon  30+30’
>                       • Workflow and dataflow software & issues - Alexei 
> Klimentov, Kaushik De, Torre Wenaus  40’+40’
>                       • (Event generation?)
>       • Thu: zeroing in on specific proposals, activities and 
> collaborations we can pursue. Perspectives on the problems
>               • Thu am  9-12:30
>                       • Core software, perspectives on reengineering - 
> Scott Snyder, Vakho Tsulaia  30+30’
>                       • Perspectives of a user and analyst - Peter Loch  
> 30+30’
>                       • Proposals - Amir Farbin  30’+30’
>               • Thu lunch - bring in sandwiches for hackathon lunch
>               • Thu pm 2-6
>                       • CSI software & technology talks, discussion, demo, 
> hacking
>                               • trying out a few new tools, look at 
> programming models
>                       • Discussion on participation in the GPU hackathon at 
> BNL in Sep  60’
>                       • First hackathon session
>       • Fri: hands-on hackathon & brainstorming
>               • ATLAS software build & instrumentation hackathon
>               • Software reengineering prospects brainstorm
>                       • what software components and workflows are most 
> amenable to attack for exascale
>                       • potential for the codes on different architectures, 
> look for porting problems to attack
>                       • looking at the codes with rewrite potential in 
> mind, develop strategies for porting, if we can do sufficient homework 
> beforehand.
>               • Next steps, what to pursue and with what priorities
> 
> 
>   Torre
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