Re: [Caml-list] Concurrent/parallel programming

[Phil Tomson]

On Tuesday, January 7, 2014 12:12:39 PM UTC-8, Yaron Minsky wrote:
> This is indeed something that is not well covered in RWO. That said,
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> the Async_parallel library is aimed at this kind of target. No shared
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> memory region, just some automation around spinning up processes and
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> communicating jobs between them.

Is there any example code that uses Aysnc_parallel?


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> CC'ing Eric Stokes, who is the primary author of the library.
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> y
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> On Tue, Jan 7, 2014 at 2:54 PM, Yotam Barnoy <yotam...@gmail.com> wrote:
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> > Hi List
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> >
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> > So far, I've been programming in ocaml using only sequential programs. In my
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> > last project, which was an implementation of a large machine learning
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> > algorithm, I tried to speed up computation using a little bit of parallelism
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> > with ParMap, and it was a complete failure. It's possible that more time
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> > would have yielded better results, but I just didn't have the time to invest
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> > in it given how bad the initial results were.
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> >
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> > My question is, what are the options right now as far as parallelism is
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> > concerned? I'm not talking about cooperative multitasking, but about really
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> > taking advantage of multiple cores. I'm well aware of the runtime lock and
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> > I'm ok with message passing between processes or a shared area in memory,
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> > but I'd rather have something more high level than starting up several
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> > processes, creating a named pipe or a socket, and trying to pass messages
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> > through that. Also, I assume that using a shared area in memory involves
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> > some C code? Am I wrong about that?
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> >
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> > I was expecting Core's Async to fill this role, but realworldocaml is fuzzy
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> > on this topic, apparently preferring to dwell on cooperative multitasking
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> > (which is fine but not what I'm looking for), and I couldn't find any other
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> > documentation that was clearer.
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> > Thanks
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> > Yotam
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