[Haskell-cafe] Haskell and concurrency

Simon Marlow simonmar at microsoft.com
Fri Jun 25 07:20:46 EDT 2004

On 25 June 2004 11:52, Graham Klyne wrote:

> Anyway, I was wondering if any of the work on concurrent Haskell or
> concurrent functional programming addresses similar systems or ideas,
> in which implementation/hardware concurrency is decoupled from
> application concurrency requirements, and particularly with a view to
> applications requiring very low-overhead fine-grained concurrency?

Concurrent Haskell is designed to provide exactly the kind of
lightweight concurrency you're after.  It won't be as quick as a custom
application-specific threading model in the way you describe, but it's a
*lot* faster than using one OS-thread for each thread in your system.

And if you find it to be still too slow for your application, we know of
several ways to speed it up...


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