ASC Q2 2023 Meeting

PMIx Standard Administrative Steering Committee (ASC) 2Q 2023 Meeting

Date: May 9 & 11, 2023
Time: 10 am - 1 pm US Central Daylight Time each day
Location: Virtual Meeting. WebEx information (bottom of the page): https://recaptcha.open-mpi.org/pmix-asc-recaptcha/
Active Notes Link: Google Doc - Please add your name and affiliation.

Quick Links

Governance Document [latest]

Agenda (Finalized on April 25, 2022)

This meeting has a floating agenda with specific synchronization points to keep us on track. Rough time estimates are provided per agenda item, and the co-chairs plan to cover the topics in the order seen below. However, since some agenda items will take longer/shorter than anticipated, an exact start/end timing is not guaranteed, and some items may float to the second day. If you cannot attend the full meeting and are presenting, please let the co-chairs know, and we can plan accordingly.

Day 1: (10 am - 1 pm US Central Daylight Time)

Start	End	Topic
10:00 am	10:05 am	Gathering (--)
10:05 am	10:10 am	Roll Call (We will start roll call promptly at this time)
10:10 am	11:30 am	Discussion of agenda items
11:30 am	11:45 am	*Break*
11:45 am	1:00 pm	Discussion of agenda items

Day 2: (10 am - 1 pm US Central Daylight Time)

Start	End	Topic
10:00 am	10:05 am	Gathering (--)
10:05 am	11:30 am	Discussion of agenda items
11:30 am	11:50 am	*Voting and Break*
11:50 am	12:30 am	Administrative and Working Group agenda items
12:30 am	12:45 pm	Technical and Use Case Presentation(s)
12:45 am	1:00 pm	Closing discussion and wrap up

Agenda Items

Governance PRs up for a Second Vote:
- None
Governance PRs up for a Reading and First Vote:
- None
PMIx Standard PRs up for a Reading (Provisional):
- None
PMIx Standard PRs up for a Reading (Errata):
- None
PMIx Standard PRs up for a Second Vote:
- None
PMIx Standard PRs up for a Reading and First Vote:
- None
Plenary discussion items
- First pass at IAWG pass at pack/unpack chapter
  - https://github.com/pmix/pmix-standard/pull/449
- Minor edits to Events chapter
  - https://github.com/pmix/pmix-standard/pull/443
Revision Exception Votes
- None
Presentation of the v5.0 Standard Release Candidate for discussion (Ken/Dave)

Administrative and Working Group Agenda Items

Review quarterly meetings dates and plans

1Q 2023 - Virtual
  - Jan. 24 & 26 (10 am - 1 pm US Central)
2Q 2023 - Virtual
  - May 9 & 11 (10 am - 1 pm US Central)
3Q 2023 - Virtual
  - July 18 & 20 (10 am - 1 pm US Central)
4Q 2023 - Virtual
  - Oct. 17 & 19 (10 am - 1 pm US Central)

ASC Membership
- Vote on new ASC Members
- Call for new ASC Members
Release Planning
- PMIx 4.2 Release (Josh/Ralph ~ 5 min)
  - v4.2rc1 is available for review. Expected release 4Q 2023
- PMIx 5.0 Release (Ken/Dave ~ 10 min)
Working Group Updates (~ 10-15 minutes each)
- Client Separation / Implementation Agnostic Document
- Tools & Dynamic Workflows
- Open Call for New Working Groups
Working time on drift between OpenPMIx and PMIx Standard
- https://github.com/openpmix/pmix-tests/actions
- PR: https://github.com/openpmix/pmix-tests/pull/158
Working time to triage remaining v4.2 work items
- PMIx 4.2 Release
Technical and Use Case presentations
- TBD
Additional discussion items

Meeting Notes:

Attendance

Person	Institution	Day 1	Day 2
Josh Hursey	IBM	☑️	☑️
Ken Raffenetti	ANL	☑️	☑️
Dave Solt	IBM	☑️	☑️
Brice Goglin	Inria	☑️
Isaias Compres	TUM	☑️	☑️
Norbert Eicker	FZJ	☑️	☑️
Michael Karo	Altair)	☑️	☑️
Aurelien Bouteiller	UTK	☑️	☑️
Kathryn Mohror	LLNL		☑️

Day 1: May 9, 2023

Plenary: Event chapter

https://github.com/pmix/pmix-standard/pull/443

Action items:

Everyone: Please review the PR.
Will be ready for first reading next meeting (23Q3).
Error and Event codes share a type and range. So clarify that some calls allow for any integer value but the user should be aware of the predefined Error and Event values when choosing an integer value.

Plenary: Data Pack/Unpack chapter

https://github.com/pmix/pmix-standard/pull/449

We walked through the changes to this chapter:

Open Questions:

Implementation agnostic Issues:
- PMIx_Data_compress/Uncompress might be implementation specific
Unclear how memory allocated by PMIx_Data_[un]compress can be freed.
- The chapter states that the user is responsible to free the memory, but no according function is provided.
- Shall there be a generic function to free?
PMIx_Data_load claims to free pre existing memory
- Does this actually make sense. Memory might be static
- Partial unpacking: If not the full content of the buffer was unpacked because it does not fully fit into the provided memory
- Overall, policy for memory handling will need further discussion

Update on status of the v5 release

Approval vote for v5 release candidate passed in Q1 meeting
Minor editorial changes added in the meantime
- Acknowledgement updates

Ready for release

Update on status of the v4.2 release

v4.2rc1 is ready for review

Working groups

Client Separation / Implementation Agnostic Document
- Plan to step into the next chapter
- Meeting times reversed back to Monday (4pm EST)
Tools / Dynamic Workflows
- A Cancellation request for Allocations might be required
- Not in the original standard to avoid race conditions

Call for new WGs

No new WG were called for this time however, Impl. Agnostic WG finds a lot of things that could be spun to other WGs, E.g., Publish-Subscribe, Data Packing/loading, …
Dave will get a list of open topics
Each new WG could be short lived and issue focused.
Each new WG will require a ‘champion’ to lead the group.