Sep 24 26, 2019

OpenSHMEM F2F Meeting (Sep 24th-26th, 2019)

• Registration
• Agenda
  • Votes
  • Reading

Logistics

https://you.stonybrook.edu/exascallab/f2f-2019/

Agenda

Tuesday, Sep 24th, 2019

Time	Topic	Telecon
8:30 - 9:00 am	Breakfast
9:00 - Noon (Session 1)	Reading (Special Ballot)
Noon - 1:00 PM	Lunch
1:00 PM - 3:00 PM (Session 2)	Reading (Special Ballot)
3:00 PM - 3:30 PM	Break
3:30 PM - 5:00 PM (Session 2)	Reading (Special Ballot)

Wednesday, Sep 25th, 2019

Time	Topic	Telecon
8:30 - 9:00 am	Breakfast
9:00 - Noon (Session 3)	Reading
Noon - 1:00 PM	Lunch
1:00 PM - 3:00 PM (Session 4)	Reading
3:00 PM - 3:30 PM	Break
3:30 PM - 5:00 PM (Session 4)	Reading

Thursday, Sep 26th, 2019

Time	Topic	Telecon
8:30 - 9:00 am	Breakfast
9:00 - Noon (Session 5)	Voting/Discussion
Noon - 1:00 PM	Lunch
1:00 PM - 3:00 PM (Session 6)	Discussion
3:00 PM - 3:30 PM	Break
3:30 PM - 5:00 PM (Session 6)	Discussion

Topics

Voting

• 275 - Put with Signal (+ Special Ballot)
• 247 - Nonblocking Fetching AMOs (+ Special Ballot)
• 280 - Teams and Collectives Proposal (+ Special Ballot)
  • Special Ballot PR1 PR2
• 267 – Wait/Test Clarifications (+ Special Ballot)
• 274 - Add wait/test all/any/some API with vector cmp_values (+ Special Ballot)
  • Special Ballot changes

Reading

• 259 – SHMEM Malloc with Hint

Discussion

• OpenSHMEM 1.5 Release
  • Timeline
    • 2019
      • November 13
    • 2020
      • January (6-10): final reading for 1.5
      • February (3-7): final voting for 1.5
      • March (16-20): review and/or release candidate
      • April (4/27 - 5/1): release candidate
      • June (8-12): final release
  • PRs to be included
  • Section committees
• Teams: experiences with early implementations
  • Dave
  • Naveen
• Teams: proposal writing / small-groups
  • Error handling
  • Ordering of ranks within the team
    • SHMEM_TEAM_SHARED may not be triplet-compatible → only contain self?
    • require triplet form vs. recommend triplet form (note to implementers?)
  • Configuration structure
    • ABI compatibility + vendor extensions
    • default settings
    • team_get_config output vs. config input to team_split
  • Inter-{team, context} atomicity

September 26th, 2019 - Discussion Topics

• Annex - interoperability with other programming models
• Performance Variables and APIs for Tools
• 195 Memory Spaces – Team-based Symmetric Heap
• OpenSHMEM memory model discussion

Attendees per organization (Representatives)

• Gorentla Venkata, Manjunath (Mellanox)
• Dinan, Jim (Intel Corp.)
• Si, Min (Argonne National Laboratory)
• Poole, Wendy (LANL)(Remote)
• Hamidouche, Khaled (AMD)(Remote)
• Langer, Akhil (NVIDIA)
• Ravichandrasekaran, Naveen N (Cray Inc)
• Raymond, Michael (HPE)(Remote)
• Ross, James (ARL)(Remote)
• Poole, Stephen (OSSS)
• Park, Nick (DOD)
• Tony (Stony Brook University)(Remote)
• Grossman, Max (Georgia Tech)

Attendees

• Lam, Bryant (DOD)
• Ozog, Dave (Intel Corp.)
• Wasi (Intel Corp.)
• Shamis, Pavel (Arm) (Remote)

Eligible but absent

• MTSU
• ORNL
• Rice (Max to represent Georgia Tech)

Votes

Topic	Yes	No	Abstain	Absent
PR 275 (Special Ballot)	11	0	1	1
PR 275	11	0	1	1
PR 247 (Special Ballot)	11	0	1	1
PR 247	11	0	1	1
PR 280 (Special Ballot)	11	0	1	1
PR 280	10	2	1	0
PR 267 (Special Ballot)	11	0	1	1
PR 267	11	0	1	1
PR 274 (Special Ballot)	11	0	1	1
PR 274	11	0	1	1

• AMD absent for all votes except for PR 280
• HPE abstained for all votes