Intro, Goals & Agenda tuning

• Jeff Porter (Lawrence Berkeley National Lab. (US))

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex

ALICE-USA Computing project summary

• Jeff Porter (Lawrence Berkeley National Lab. (US))

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex overview of project status with pointers to specific items we hope to address during the meeting.

ALICE Computing requirements 2019-2021

• Latchezar Betev (CERN)

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex https://docs.google.com/document/d/1IDV0UE1oVkHrheToJjl1fQycFIWbzQ-c4ULRkMwrv6o/edit?ts=5caf6a69 Review of new requirements and expected changes in the job flux into the T2s for Run 3. Also, any new infrastructure on the horizon ... Singularity?

US T2 layout details, 2019 task list, evolution plans

• Jeff Porter (Lawrence Berkeley National Lab. (US))
• Karen Fernsler (LBNL)
• Pete Eby (Oak Ridge National Laboratory - (US))
• John White (LBNL)

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex Fill out a Google doc on layout details, items on our to-do list, and how the project expect the clusters to grow/evolve. Note any site issues that may impact these plans

US T2 layout, 2019 task lists, evolution plans continued

• Pete Eby (Oak Ridge National Laboratory - (US))
• John White (LBNL)
• Jeff Porter (Lawrence Berkeley National Lab. (US))
• Karen Fernsler (LBNL)

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex

Quick Check of site health: review from last year

• Latchezar Betev (CERN)

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex list of items from ALICE monitoring that one should check and a quick review of how to identify problems via aliensh.

T2 Site Test Infrastructure

• Jeff Porter (Lawrence Berkeley National Lab. (US))
• Pete Eby (Oak Ridge National Laboratory - (US))

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex Identify set of tasks that can be scripted via aliensh or pyJalien.py - to help verify that site behavior is normal relative to ALICE use &/or to identify specific issues: site-to-site FW block, CMreport not working, Grid cert expired, ...

NERSC HPC status, current model, future plans, summer students

• Jeff Porter (Lawrence Berkeley National Lab. (US))

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex

ESnet Review prep & overview Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex Overview of review process and objective, with opportunity to fill out some numbers. Report as exists: https://docs.google.com/document/d/1_5jIzpTFfJJgzEiokYsxb3Ked4eKYx5MZVR_Ll-DnFs

WAN: Requirements & Monitoring plans

• Pete Eby (Oak Ridge National Laboratory - (US))
• Costin Grigoras (CERN)

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex Review expectations/requirements RTT/bandwidth, monitoring capabilities of perfsonar & its installation Build a reply to Shawn McKee on what instances to include in OSG monitoring network Notes from Pete: https://docs.google.com/presentation/d/1ic0lgYWHGXtGAN7UyQGFQoOXM0e0X9qokOqISVgBC7k

EOS drain summary & EOS or XRootD test infrastructure

• John White (LBNL)
• Costin Grigoras (CERN)
• Pete Eby (Oak Ridge National Laboratory - (US))
• Jeff Porter (Lawrence Berkeley National Lab. (US))

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex Debrief on draining our 2 EOS storages. Lessons learned? Could EOS/XRootD test infrastructure help? Better network / server monitors?

Analysis Jobs: overview of common features, efficiency

• Costin Grigoras (CERN)

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex General summary of how analysis jobs work (or don't!), where efficiency loss arises, how to detect

HPCS Efficiency evaluation

• John White (LBNL)
• Jeff Porter (Lawrence Berkeley National Lab. (US))
• Costin Grigoras (CERN)
• Karen Fernsler (LBNL)

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex review monitors of HPCS efficiency: contributions & determine what is reasonable to expect given data layout. If not reasonable, how to fix?

Site configurations to support Run 3

• Latchezar Betev (CERN)

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex We're starting to buy / configure T2 hardware for Run 3. What should we be doing? Will we support analysis?

T2 Site Test Infrastructure, revisited

• Jeff Porter (Lawrence Berkeley National Lab. (US))
• Pete Eby (Oak Ridge National Laboratory - (US))

Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex

AOB Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex

WP15 status & plans for US participation Room: Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex