I am also not quite sure of your motivation! The current version of GpH is (or can be with very little difficulty) implemented using library calls. There is really no language extension per se, rather there are calls to tightly-coupled C code, plus a set of high level libraries to provide structure (evaluation strategies). There are, of course, modifications to the RTS to support proper scheduling, communications etc. , but these are necessary for a properly integrated high-level approach. If you want a low-level approach, one of the MPI libraries for Haskell may suit you better? Kevin At 7:16 pm +0100 16/12/02, Christian Sievers wrote: Dusan Kolar asked:

My question/wish is maybe naive, but anyway: Is there a library (not a language extension, like Concurrent Haskell, Glasgow Parallel Haskell, ...) enabling to run two functions in parallel, possibly in cascade?

I think the best you can get without language extensions is what is described in Koen Claessen's Functional Pearl "A Poor Man's Concurrency Monad". It's really nice, but not exactly what you seem to want. You can get that article from http://www.cs.chalmers.se/~koen/publications.html All the best Christian Sievers _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe