Aug 20 SG5 TM webex

[Michael Wong]

Start Time: Monday, Aug 20 , 2018, 12:00 PM US Pacific Time (07:00 PM in GMT)
End Time: 1:00 PM US Pacific Time (duration: one  hour)

https://codeplay.webex.com/codeplay/j.php?MTID=m38839aecbf655d241535c2fa02dab445

https://groups.google.com/a/isocpp.org/forum/#!topic/tm/1d9ZzKHfLUo

With large numbers of participants, audio interference can be a problem. Please try to keep
your phone muted whenever possible. If your phone does not have a mute
button, the bridge will mute or un-mute your line if you dial *6.

The current secretary rota list is (the person who took notes at the last meeting is moved to the end)

Maged, Jens, Victor,, , Michael Scott, Michael Spear , Michael W, Hans


Agenda:

1. Opening and introductions

1.1 Roll call of participants

1.2 Adopt agenda

1.3 Approve minutes from previous meeting, and approve publishing  previously approved minutes to ISOCPP.org

1.4 Review action items from previous meeting (5 min)

1.5 Call schedules (please add your away days)

2. Main issues (50 min)

2.1 Continue discussion on future of TM logistics

Continue on minimal TM lite  proposal based on Herb Sutter's ideas

Herb to discuss liasion with Tim Sweeney

2.2: Interaction with Executors and Synchonized proposal

https://groups.google.com/a/isocpp.org/forum/#!topic/tm/jG9XPJetNkc

The last discussion has us considering an alternative lambda form.

See Paper emailed out on Lambda proposal

https://docs.google.com/document/d/1ICmcrCdigq3ataoM2Jl7m19h_Sa3aE3KfU6AVkPyT-4/edit#


2.3 future issues list:

1. llvm synchronized blocks
2. more smart ptrs?how fast can atomics and smart ptrs be outside tx if they have to interact with tx (for world that does not care about tx), the atomic nature of smart ptrs as a way towards atomics inside atomic blocks
3. more papers?
4. Issue 1-4 paper updates to current TM spec
5. std library


2.4 Discuss defects if any work done since last call
Issue 1: https://groups.google.com/a/isocpp.org/forum/#!topic/tm/SMVEiVLbdig
Issue 2: https://groups.google.com/a/isocpp.org/forum/#!topic/tm/Th7IFxFuIYo
Issue 3:https://groups.google.com/a/isocpp.org/forum/#!topic/tm/CXBycK3kgo0
Issue 4: https://groups.google.com/a/isocpp.org/forum/#!topic/tm/Ood8sP1jbCQ



3. Any other business

4. Review

4.1 Review and approve resolutions and issues [e.g., changes to SG's working draft]
N4513 is the official working draft (these links may not be active yet until ISO posts these documents)
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4513.pdf

N4514 is the published PDTS:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4514.pdf

N4515 is the Editor's report:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4514.html

Github is where the latest repository is (I have updated for latest PDTS published draft from post-Leneaxa):
https://github.com/cplusplus/transactional-memory-ts

Bugzilla for filing bugs against TS:
https://issues.isocpp.org/describecomponents.cgi


4.2 Future backlog discussions:

4.2.1 Write up guidance for TM compatibility for when TM is included in C++ standard (SG5)

4.2.2 Continue Retry discussion
https://groups.google.com/a/isocpp.org/forum/?hl=en&fromgroups#!topic/tm/qB1Ib__PFfc
https://groups.google.com/a/isocpp.org/forum/#!topic/tm/7JsuXIH4Z_A



4.2.3 Issue 3 follow-up

Jens to follow up to see if anything needs to be done for Issue 3.

4.2.5 Future C++ Std meetings:

https://isocpp.org/std/meetings-and-participation/upcoming-meetings

• (not a WG21 meeting, limited agenda, library processing) 2018-08-20 to 24: Batavia, IL, USA
• (not a WG21 meeting, limited agenda, modules) 2018-09-20 to 21: Seattle, WA, USA; Microsoft
• (not a WG21 meeting, limited agenda, executors) 2018-09-22 to 23: Seattle, WA, USA; Standard C++ Foundation, CppCon
• 2018-11-05 to 10: San Diego, CA, USA; Qualcomm
• 2019-02-18 to 23: Kona, HI, USA; Standard C++ Foundation, NVIDIA, Plum Hall, Jens Maurer
• 2019-07-15 to 20: Cologne, Germany; Nicolai Josuttis
• 2019-11-04 to 09: Belfast, Northern Ireland; Archer Yates

4.3 Review action items (5 min)



5. Closing process

5.1 Establish next agenda

5.2 Future meeting
Next call: TBD