> David Nyman: > >> Point taken. The EC 'axioms' may be better conceived as primitive computations (like the UD), not theorems. In terms of comp, is there any necessary distinction between a UD and a parallel distributed 'architecture'? > > > I am not sure what the EC axioms are. The UD is both massively parallel and massively sequential. Recall the UD generates all programs and executes them all together, but one step at a time. The "D" is for dovetailing which is a technic for emulating parallelism sequentially. > >
Isn't "emulating parallelism sequentially" rather telling? Emulation is emulation... "acting as-if there was parallelism" and "actual parallelism" have to be proven identical (nothing lost in the translation ... I think someone mentioned Leibniz equivalence). Maybe we need to look at single vs multi-processors (the parallel distributed architecture mentioned above) a little more deeply. I'm preempting the pillowtalk :-) on the other thread but i'd like to discuss it. I need a little more information just to be absolutely sure I get what is going on: Is the UD process a) UD generating all programs then b) UD executes all of them or a1) The UD generate program X, then b1) launches execution of X (adds it to the heap already running) in itself c1) Go to a1 Is the "1 step at a time" execution 1 processor time 'slice' = -------------------------- N = 1 a) step N in program a b) step N in program b . . Last) step N in program 'last' N = N+1 Go to a) ---------------------------- or -------------------------- N = 1 a) 1 time 'slice' = step N in program a b) 1 time 'slice' = step N in program b . . Last) 1 time 'slice' = step N in program 'last' N = N+1 Go to a) ---------------------------- Q In other words can the UD be regarded as having an operating system of some sort that navigates its way invisibly to all the programs it is running? Q Do you consider the UD fully operational before or after all the programs are generated? Q At what point does whatever serves as the 'reality' of being a UD get officially/fully launched? I'd like to think about a various single/multi processor serial/parallel UD implementations. I have experiences with these - real time industrial process control software is more like the UD than an multi-tasking operating system. 'Time' in a real-time control system is very different to that in a standard multitasking operating system. Also the coordination of programs is an issue. The software is very different.... If I could get my head around the above I can calibrate my UD thoughts in these terms. Cheers Colin Hales --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to everything-list@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/everything-list -~----------~----~----~----~------~----~------~--~---