Comment Feed for JAOO 2007: Joe Armstrong - On Erlang, OO, Concurrency, Shared State and the Future, Part 2 (Charles on Channel 9)

Re: JAOO 2007: Joe Armstrong - On Erlang, OO, Concurrency, Shared State and the Future, Part 2

ivan_ — Thu, 07 Feb 2008 21:54:20 GMT

sorry for the silly question. When Joe was talking about fault tolerance, he said something that you could copy one machine on to the other, or whatever one machine does can be replicated on the other machine.
How would you create another copy in a secure fashion? How to make sure that only a certain entity/function/whatever can create a copy, especially when there is nothing to copy from when everything is crashed, wouldn't there be a need for a static state which can be replicated? What if that third entity crashes, wouldn't there be a need for every machine to be able to create another machine and exchange messages to see whether there is at least one machine running, somebody also needs to hold a security policy, that is static... right? no?...

Re: JAOO 2007: Joe Armstrong - On Erlang, OO, Concurrency, Shared State and the Future, Part 2

raymond — Thu, 01 Nov 2007 02:29:24 GMT

A great series of Videos. :)

Thank you again Charles and Microsoft.

[H]

Re: JAOO 2007: Joe Armstrong - On Erlang, OO, Concurrency, Shared State and the Future, Part 2

sylvan — Wed, 31 Oct 2007 23:06:07 GMT

aL_ wrote:

FPGAs.. they sound alot like a 3d accelerator to me so in that way, most of us already has them

Not really. A 3d accelerator still just interprets instructions from a fixed instruction set. An FPGA is basically a grid of gates, and you litterally change how they're wired together (not physically obviously). It HAS NO instruction set, it's just a bunch of hardware gates that you can rewire to do whatever you want.

That said, I'm skeptical that it's the way forward. I mean they've been around for a very long time, but mostly you just use them for prototyping, and then when you're done you build it "for real" and it goes a lot faster.

Re: JAOO 2007: Joe Armstrong - On Erlang, OO, Concurrency, Shared State and the Future, Part 2

TimP — Wed, 31 Oct 2007 18:33:45 GMT

mpcm wrote:

http://video.google.com/videoplay?docid=-5140917568901801025&q=erlang&total=16&start=0&num=10&so=1&type=search&plindex=6

Erlang in telcom...

Watched it last night, definitely a must see. :)

Re: JAOO 2007: Joe Armstrong - On Erlang, OO, Concurrency, Shared State and the Future, Part 2

mpcm — Wed, 31 Oct 2007 14:29:52 GMT

http://video.google.com/videoplay?docid=-5140917568901801025&q=erlang&total=16&start=0&num=10&so=1&type=search&plindex=6

Erlang in telcom...

Re: JAOO 2007: Joe Armstrong - On Erlang, OO, Concurrency, Shared State and the Future, Part 2

aL_ — Wed, 31 Oct 2007 08:55:16 GMT

FPGAs.. they sound alot like a 3d accelerator to me :) so in that way, most of us already has them :)
id just like to point that out..

perhaps thats the way things will be.. i doubt strongly that we'll be writing everything in erlang/ml/f#, after all not everything can be parallelized to 20 tasks, but perheps we'll use functional constructs in a library to witch be pass a task (aka ccr /plinq)
thats what i think anyway :P