AW: [Caml-list] Master-slave architecture behind an ocsigen server.

[Gerd Stolpmann <info@gerd-stolpmann.de>]

Am 27.03.2013 23:42:14 schrieb(en) Denis Berthod:
>  Hello,
> 
> Isn't the Lwt_preemptive module exactly what you want?
> 
> http://ocsigen.org/lwt/api/Lwt_preemptive
> 
> But maybe, you want to use real processes and not threads.

In OCaml, only one thread may access runtime functions at a time, and  
because of this, only one thread at a time can run OCaml code. So you  
exploit only one core with a multi-threaded program. I guess this does  
not meet Philippe's scalability requirement, and he wants to use  
processes instead.

Gerd


> Cheers,
> 
> Denis
> 
> Le 26 mars 2013 à 15:29, Philippe Veber a écrit :
> 
> > Dear all,
> >
> > I'm developping an ocsigen website doing some scientific  
> calculations. Up to now, the calculations were done in the same  
> process that runs the server. In order to gain in scalability (and  
> maybe stability too), I would like to run those calculations in a  
> separate (pool of) process(es). As this is a pretty typical setup, I  
> guess quite a few people have already done that. So I'd like to hear  
> some suggestions on what library to use in this particular context.  
> It seems to me that the release library [1] should do the job and is  
> lwt-friendly, but there are maybe other good options?
> >
> > Thanks for any hint, cheers!
> >
> > Philippe.
> >
> > [1] https://github.com/andrenth/release
> 
> 
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Gerd Stolpmann, Darmstadt, Germany    gerd@gerd-stolpmann.de
Creator of GODI and camlcity.org.
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