[m-users.] Parallel execution in Mercury?

Paul Bone paul at bone.id.au
Sat Jan 12 00:30:34 AEDT 2019


On Fri, Jan 11, 2019 at 01:43:56PM +0100, Matthias G├╝demann wrote:
> Hi Volker,
> 
> > There are a large amount of papers on parallelism on http://mercurylang.org/
> > documentation/papers.html, but I couldn't find anything in the Language
> > Reference Manual, User's Guide, Library Reference Manual and the FAQ.
> 
> I wrote an article about parallelism in Mercury a while ago
> http://guedemann.org/articles/Mar-17-2015.html
> 
> Maybe that is useful for you. In short, you need a parallel grade and
> you use the `&` conjunction.
> 
> There is also the `thread` module in the library, but I haven't used this yet.
> 
> search for `parallel` here:
> 
> https://www.mercurylang.org/information/doc-latest/mercury_user_guide/Optional-features-compilation-model-options.html

In addition to these checkout some of the examples.

In the source tarball and git repository they're under benchmarks/progs/

There are a few examples that work with parallelism, some are designed to
work with the still experimental auto-parallelism.  However others:

 + various versions of icfp2000 (a raytracer)
 + mandelbrot

These were known to work last time I tried them.

Mandelbrot might be the best to look at first, depending on command line
arguments it attempts to run in parallel in various ways (for comparing
them).

-- 
Paul Bone
http://paul.bone.id.au


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