On 24 June 2010 13:10, Simon Marlow <marlo...@gmail.com> wrote: > On 17/06/2010 06:23, braver wrote: > >> I'll work with Simon to investigate the runtime, but would welcome any >> ideas on further speeding up cafe4. > > An update on this: with the help of Alex I tracked down the problem (an > integer overflow bug in GHC's memory allocator), and his program now runs to > completion. > > This is the largest program (in terms of memory requirements) I've ever seen > anyone run using GHC. In fact there was no machine in our building capable > of running it, I had to fire up the largest Amazon EC2 instance available > (68GB) to debug it - this bug cost me $26.
I foresee Simon not having to pay for any of his beer at ICFP thus summer... Duncan _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
