[plt-dev] Parallel Futures Release

On Dec 13, 2009, at 9:40 AM, Sam TH wrote:

>> 
>> No, I don't think that happens. (At the moment, those decisions are
>> made by the pthread library, tho.)
> 
> Maybe I'm confused.  I thought that when a future gets `touch'ed, if
> it isn't finished, the remainder of the computation runs in the
> continuation (and thus thread) of the `touch'.  If I'm wrong about
> that, then my worries are assuaged.

1. That's not what happens in the old world of futures. 

2. In the old world of futures, you could have written the program
like this for the same speed-