[Haskell-cafe] Newbie question about tuples

Donald Bruce Stewart dons at cse.unsw.edu.au
Sun Jul 15 12:35:07 EDT 2007

> Donald Bruce Stewart wrote:
> >bf3:
> >  
> >>Maybe this is yet another newbie stupid question, but do you mean that
> >>GHC does automatic multi-threading?  (Haskell seems very suitable for 
> >>that) Otherwise adding an extra core does not really help does it?
> >
> >No, though that would be nice! You do have to program in a parallel
> >manner, either by using forkIO, Control.Parallel, or parallel arrays.
> >When you do, you have the option of such code scaling up to more cores
> >relatively easily.
> >
> >My advice: starting writing threaded code now, with *lots* of threads,
> >so your program will have the ability to start using +RTS -N16 when you
> >get a new machine :)
> >  
> I read somewhere that GHC's SMP support has been "tested up to 40 cores".
> Pray tell me, what the heck kind of machine has 40 cores? (And where can 
> I buy mine from?? :-D LOL!)

40 cpus.

It's a midrange Sun Fire server, something like this one


You'll need more than spare change to get started though.
*However* 8 core amd64 machines are practically commodity boxes now. Go
get one.

-- Don

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