Add a glossary

[Dan Bonachea]

We should add a glossary section to define formal terms that are used throughout the spec but do not appear in the C++ "terms and definitions" section.

This probably includes at least:

• collective
• affinity
• rank
• thread (or OS thread)
• shared segment
• local
• remote

[Dan Bonachea]

Should probably also include:

• Serializable (with a reference to the chapter)
• Referentially transparent
• Source completion
• Operation completion (or whatever we end up calling it)
• A list of any C++ concepts we use (eg TriviallyCopyable), with a reference to the C++14 spec (which should probably be added to the Bibliography)

[BrianS]

Where would we like the glossary? after the Overview and Scope, or as a section within that chapter?

[Dan Bonachea]

I was thinking section 1.6, but it would be useful anywhere really.

[Amir Kamil]

See Issue #47 for definition of "collective."

[Scott Baden]

I've written the first version. A lot is based on text provided in the Spec itself. Note the following Right now we talk about "Operation Completion" Should we instead use a simpler term "completion?"

Section 4.9 refers to thread as A"\upcxx device referred to as thread persona which generalizes the notion of operating system threads." There is probably a better word than "device, " perhaps construct instead?

[Dan Bonachea]

Thanks Scott - I did some additional cleanup.

I'm satisfied with the initial version of the Glossary, we can open new issues for any quibbles over wording of particular entries.