RE: optimistic evaluation

2006-02-08 Thread Simon Peyton-Jones
| What is the status of Rob Ennals' optimistic evaluation work? I'm told | that it has been removed from GHC. This is extremely depressing to me. More precisely, it never got into GHC. It was always on a heavily-modified branch. Rob's thesis was fantastic work. But although it

Re: optimistic evaluation

2006-02-07 Thread Tomasz Zielonka
On Tue, Feb 07, 2006 at 09:52:49PM +0100, Tomasz Zielonka wrote: > ... I was wondering if it would be possible ... > > There's also a related idea ... I've heard that the implementation of optimistic evaluation was rather complex, which was the main reason not to include it i

Re: optimistic evaluation

2006-02-07 Thread Tomasz Zielonka
On Tue, Feb 07, 2006 at 09:52:49PM +0100, Tomasz Zielonka wrote: > There's also a related idea to decrease the priority of garbage > producing threads (and/or increase for garbage reducing threads). This > way it would be possible to make the idiomatic Haskell 'wc' (word count) > implementation spa

Re: optimistic evaluation

2006-02-07 Thread Tomasz Zielonka
On Tue, Feb 07, 2006 at 08:28:51PM +, Frederik Eaton wrote: > What is the status of Rob Ennals' optimistic evaluation work? I'm told > that it has been removed from GHC. This is extremely depressing to me. > Without such a feature available, it becomes very difficult to wr

optimistic evaluation

2006-02-07 Thread Frederik Eaton
Hi all, What is the status of Rob Ennals' optimistic evaluation work? I'm told that it has been removed from GHC. This is extremely depressing to me. Without such a feature available, it becomes very difficult to write programs that process large amounts of data in Haskell. In