Re: [9fans] Barrelfish

[Roman Shaposhnik <roman@shaposhnik.org>]

On Sun, Oct 18, 2009 at 6:06 AM, Roman Shaposhnik <shaposhnik@gmail.com> wrote
>> It is. But what's your proposal on code sharing? All those PC
>> registers belonging to
>> different cores have to point somewhere. Is that somewhere is not shared me=
>> mory
>> the code has to be put there for every single core, right?
>
> At the hardware level we do have message passing between a
> processor and the memory controller -- this is exactly the
> same as talking to a shared server and has the same issues of
> scaling etc. If you have very few clients, a single shared
> server is indeed a cost effective solution.

I guess I'm not following. My question to OP was strictly about
code sharing. Basically were do the cores get instructions from
if not from shared memory.

Thanks,
Roman.