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Sklml: Easy coarse grain parallelization

Version 1.1+pl0

Bug reports and mailing lists


Sklml is a functional parallel skeleton compiler and programming system for OCaml programs.

Writing parallel programs is not easy, and debugging them is usually a nightmare. To cope with these difficulties, the skeleton programming approach uses a set of predefined patterns for parallel computations. The skeletons are higher order functional templates that describe the program underlying parallelism.

Sklml is a new framework for parallel programming that embeds an innovative compositional skeleton algebra into the OCaml language. Thanks to its skeleton algebra, Sklml provides two evaluation regimes to programs: a regular sequential evaluation (merely used for prototyping and debugging) and a parallel evaluation obtained via a recompilation of the same source program in parallel mode.

Sklml was specifically designed to prove that the sequential and parallel evaluation regimes coincide.


The Sklml user's manual is available on line.

You can also download the manual as DVI (66 ko), PS (356 ko), and PDF (181 ko) files.

The manual only exists in the English version, volunteers to translate it are warmly welcomed...



You will need Objective Caml version 3.12 or higher to compile the sources.

See the INSTALL file provided in the distribution for installation tips.


The latest version (1.1+pl0) of the sources of Sklml are available via HTTP.

See the CHANGES file provided in the distribution.

Bug reports and mailing list

If you find a bug in Sklml, please write to sklml-bugs at

If you want to get in touch with the implementors of Sklml, please write to sklml-devel at

If you want to get in touch with the users of Sklml, please write to sklml-users at


The version 1.1+pl0 of Sklml was developed from 2007 to 2014 by

Quentin Carbonneaux (Quentin.Carbonneaux at,
François Clément (Francois.Clement at, and
Pierre Weis (Pierre.Weis at


Sklml was inspired by the OCamlP3l experiment.

Sklml is entirely written in Objective Caml.


This program is free software distributed under the BSD license. See the LICENSE file provided in the distribution.

Last modification date: Tuesday, January 21st, 2014 on lafleche by fclement.
Copyright © 2007-2014 Institut National de Recherche en Informatique et en Automatique (INRIA), all rights reserved.