4 ms·

1. Just bare like that, it's not. Unless, of course, the object requires a key to allow a processor to execute it. See for example Capability-Based Access Contr

1. Just bare like that, it's not. Unless, of course, the object requires a key to allow a processor to execute it. See for example Capability-Based Access Control 2. In TupleWorld, there's no concept of "the" intended recipient. The tuple's properties determine what kind of processor would match. If those properties happen to only match a single processor, you'd get that 1:1 mapping you want, but that's missing the point of tuple spaces.

Jupe 4y ago
Just coordinating the 1:1 mapping I might want is fraught with challenges. Network delays, out-of-order execution, stampeding herd situations, poison objects, processors crashing (or being rebooted) at random times... I'm not seeing the benefit of a "bag" of objects to be processed whenever by whoever or whatever. Perhaps this is attempting to solve a problem I've not come across. While it sounds interesting, I'm not sure I see the benefit? (Probably me just being short-sighted).
- cratermoon 4y ago
  It's a way of doing massively parallel computations in a scatter/gather system. I suggest looking up the paper "Linda in Context. I'd provide a link but I'm on my phone.
  - Jtsummers 4y ago
    Here you go (not on mobile): https://dl.acm.org/doi/10.1145/63334.63337 https://dl.acm.org/doi/10.1145/63334.63337 (free access)
    - cratermoon 4y ago
      Also worth reading are the "Linda Letters" from Communications of the ACM, October 1989, vol 32, no 10, p 1244. I found an excerpt at https://web.archive.org/web/20160901000000*/https://www.cypherpunks.to/erights/history/clp/linda-letters.pdf https://web.archive.org/web/20160901000000*/https://www.cyph..., starting on page 4 of the PDF
- infinite8s 4y ago
  Somehow this model works to build complex organisms in embryology...
  - dllthomas 4y ago
    Still have a problem with viruses, though...
- cratermoon 4y ago
  Also, on "poison objects". We execute Javascript all the time in our browsers. Sandboxing and other measures keep the executable objects from exploiting our computers. It's imperfect, of course, and there are still exploits, but that's the general approach. Things like out-of-order execution and so forth require careful parallel design, but that's pretty much the bread-and-butter of things like SETI@Home

Jupe 4y ago

Just coordinating the 1:1 mapping I might want is fraught with challenges. Network delays, out-of-order execution, stampeding herd situations, poison objects, processors crashing (or being rebooted) at random times... I'm not seeing the benefit of a "bag" of objects to be processed whenever by whoever or whatever. Perhaps this is attempting to solve a problem I've not come across. While it sounds interesting, I'm not sure I see the benefit? (Probably me just being short-sighted).

cratermoon 4y ago
It's a way of doing massively parallel computations in a scatter/gather system. I suggest looking up the paper "Linda in Context. I'd provide a link but I'm on my phone.
- Jtsummers 4y ago
  Here you go (not on mobile): https://dl.acm.org/doi/10.1145/63334.63337 https://dl.acm.org/doi/10.1145/63334.63337 (free access)
  - cratermoon 4y ago
    Also worth reading are the "Linda Letters" from Communications of the ACM, October 1989, vol 32, no 10, p 1244. I found an excerpt at https://web.archive.org/web/20160901000000*/https://www.cypherpunks.to/erights/history/clp/linda-letters.pdf https://web.archive.org/web/20160901000000*/https://www.cyph..., starting on page 4 of the PDF
infinite8s 4y ago
Somehow this model works to build complex organisms in embryology...
- dllthomas 4y ago
  Still have a problem with viruses, though...
cratermoon 4y ago
Also, on "poison objects". We execute Javascript all the time in our browsers. Sandboxing and other measures keep the executable objects from exploiting our computers. It's imperfect, of course, and there are still exploits, but that's the general approach. Things like out-of-order execution and so forth require careful parallel design, but that's pretty much the bread-and-butter of things like SETI@Home