Re: [Haskell-cafe] fast graph algorithms without object identities

2008-02-01 Thread Alfonso Acosta
You'd probably be interested to read http://www.cs.chalmers.se/~koen/pubs/entry-asian99-lava.html On Jan 31, 2008 9:56 PM, Jan-Willem Maessen [EMAIL PROTECTED] wrote: On Jan 31, 2008, at 5:39 AM, Henning Thielemann wrote: It seems that algorithms on graphs can be implemented particularly

Re: [Haskell-cafe] fast graph algorithms without object identities

2008-02-01 Thread Jan-Willem Maessen
On Feb 1, 2008, at 9:41 AM, Alfonso Acosta wrote: You'd probably be interested to read http://www.cs.chalmers.se/~koen/pubs/entry-asian99-lava.html It is indeed an interesting paper (that I've read and referred to several times over the years). But it's tricky to get right in practice!

[Haskell-cafe] fast graph algorithms without object identities

2008-01-31 Thread Henning Thielemann
It seems that algorithms on graphs can be implemented particularly efficient in low-level languages with pointers and in-place updates. E.g. topological sort needs only linear time, provided that dereferencing pointers requires constant time. I could simulate pointer dereferencings and pointer

Re: [Haskell-cafe] fast graph algorithms without object identities

2008-01-31 Thread Jan-Willem Maessen
On Jan 31, 2008, at 5:39 AM, Henning Thielemann wrote: It seems that algorithms on graphs can be implemented particularly efficient in low-level languages with pointers and in-place updates. E.g. topological sort needs only linear time, provided that dereferencing pointers requires