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Postings from July 2021
* Leon Timmermans <fawaka@gmail.com> [2021-07-29 19:34:38 +0200]: > On Sun, Jul 25, 2021 at 5:26 PM Oodler 577 <oodler577@sdf-eu.org> wrote: > > > The ideas of "practical" concurrency is way more important to > > perl/Perl's future than virtually any other issue. > > > I agree it's important, that's why I'm actually working on the issue. To be > precise, an ithreads based (so can actually use multiple processors) > continuation passing style (same model Go uses for its channels) module. > > * ithreads > > * forking based things > > * async > > * "real" threads via OpenMP/pthreads bindings > > * perl vs Perl memory models > > * atomicity/sequential consistency > > * lots more stuff > > > > You appear to think that ideas are something we lack, they're not. I can > come up with more ideas in an afternoon than I can implement in a year. In This is not what I think; but this is a good example of how the topic of concurrency nearly always turns into a negative exchange. > practice, all ideas have either been already done, or are very difficult > (or even impossible) to do. My question to you would be "what are you going > to do to implement any of these ideas?" I am doing 2 things: 1. continuing to develop the idea of the "perl" memory model (uniprocess) and the Perl memory model (semantically, admits concurrency). See Sub::Genius. 2. approaching concurrency from the shared memory perspective by exploring various ideas in order to determine how OpenMP can be most naturally leveraged on an SMP machine. See OpenMP::Environment and Alien::OpenMP. I'd prefer to not sour any potential for us to work together because I am additionally interested in understanding what hidden opportunities exist for exploiting shared memory IPC among fork'd perl processes. Seems you have quite a list of modules that are in this area, which is great. I hope that's sufficient to satisfy your question. Seems the my opinion that emulated threads are "fake" is offensive to some, but it's not. It's just the only way I know to clearly differentiate "real" shared memory threading and IPC (among fork'd processes) from thread "emulation". > > > > So as long as it's TIMTOWTDI, I think it's a fabulous idea. Let me > > know where to sign up! (#concurrency on irc.perl might be a cool > > idea, too; but maybe after). > > > > Mailing lists usually start when a cc: field gets too big (that's literally > how p5p started back in the day), so I would suggest you start with asking > who wants to join. I was not the originator of this request, but your advice seems legitimate. If this is pursued, I'll join that email list immediately. Cheers, Brett > > Leon -- -- oodler@cpan.org oodler577@sdf-eu.org SDF-EU Public Access UNIX System - http://sdfeu.org irc.perl.org #openmp #pdl #nativeThread Previous | Thread Next