ProfHewitt·4 年前·議論ActorsTheory serves as the rigorous mathematical foundations of capability systems.
ProfHewitt·4 年前·議論Foundation is about rigorously specifying the general Laws of Locality for Actor systems that CHERI implements.
ProfHewitt·4 年前·議論Great to see further progress on CHERI!See the following for theoretical foundations for the work:Linux 60th Anniversary Keynotehttps://t.co/IRe3vpMlWn
ProfHewitt·5 年前·議論Interesting article.Mathematical foundations are needed that are much more suitable to modern Computer Science than using "universes".For an example see the following article:https://papers.ssrn.com/abstract=3603021Also, see the following video:https://www.youtube.com/watch?v=AJP1VL7shiI
ProfHewitt·5 年前·議論Computer science theory didn't get harder.Instead, education became weaker :-(See following link for foundations of computer Science:https://www.youtube.com/watch?v=AJP1VL7shiI
ProfHewitt·5 年前·議論The Actors Abstraction is foundational for computer scienceanalogous to the Natural Numbers in classical mathematics.
ProfHewitt·5 年前·議論Probably not a good idea to burden application programmerswith having to annotate each message send with whether thereceiver is on the current computer or another one in aCitadel.Since Actors can move between computers in a Citadel, suchannotations are infeasible in practice.Of course, modularity, security, and performance should not beignored.
ProfHewitt·5 年前·議論See the following for a rigorous definition of the Actors Abstraction:https://papers.ssrn.com/abstract=3418003
ProfHewitt·5 年前·議論Probably can't make much progress without a scientific foundation including the Actors Abstraction.
ProfHewitt·5 年前·議論The Actor Paradigm is much more widespread with offerings from Microsoft, Lightbend, etc.
ProfHewitt·5 年前·議論I fondly remember Joe Armstrong, who was a good friend.However, not having a mathematical foundation has been asevere limitation for Erlang.The Erlang community is trying to dig its way out withmodifications and extensions. Still have a long way to go.Of course, no Actors framework is perfect.Many important implementations have been done Erlang.Also, significant Erlang projects are ongoing to good effect.
ProfHewitt·5 年前·議論In a Citadel, distributed Actors are going to be necessary.See the following: Citadels: faster response time and better information integration than remote datacenters https://papers.ssrn.com/abstract=2836282
ProfHewitt·5 年前·議論Erlang incorporated some of the ideas of the Actor Abstractionbut missed a few things. SeeSee article and video here:https://papers.ssrn.com/abstract=3603021https://www.youtube.com/watch?v=AJP1VL7shiI
ProfHewitt·5 年前·議論Swift Actors are an important contribution to the Actor Paradigm.There is is an upcoming keynote address on the Actor Paradigm at the Linux 30th Anniversary Conference. Seehttps://reactivesummit2021.sched.com
ProfHewitt·5 年前·議論Both ASIO and Sender/Receiver are not a suitable foundation for concurrency in C++.
ProfHewitt·5 年前·議論As dueling co-routine proposals neither ASIO nor Sender/Receiver are a suitable foundation for C++ semantics.