2e0abee73c
First version of web site URL of on-line web site is http://heptagon.gforge.inria.fr The script rsyncweb allows to sync between the repository and the online site (by use of rsync)
134 lines
4.7 KiB
PHP
134 lines
4.7 KiB
PHP
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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<html>
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<head>
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<link type="text/css" href="style.css" rel="stylesheet">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<title>Heptagon</title>
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</head>
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<body>
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<?php include('toc.php'); ?>
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<?php include('header.php'); ?>
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<div id="content">
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<p>
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Heptagon is a synchronous dataflow language whose syntax and semantics is
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inspired from <a href="http://www-verimag.imag.fr/Synchrone,30.html">Lustre</a>,
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with a syntax allowing the expression of control structures (e.g., switch or
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mode automata).
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</p>
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<p>
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Heptagon is also a research compiler, whose aim is to facilitate
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experimentation. The current version of the compiler includes the following
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features:
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<ul>
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<li><strong>Inclusion of <em>discrete controller synthesis</em> within the
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compilation</strong>: the language is equipped with a behavioral contract
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mechanisms, where assumptions can be described, as well as an "enforce"
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property part. The semantics of this latter is that the property should be
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enforced by controlling the behaviour of the node equipped with the
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contract. This property will be enforced by an automatically built controller,
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which will act on free controllable variables given by the programmer. This
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extension has been named <a href="http://bzr.inria.fr">BZR</a> in previous
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works.</li>
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<li><strong>Expression and compilation of array values with modular memory
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optimization.</strong> The language allows the expression and operations on
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arrays (access, modification, iterators). With the use of <em>location annotations</em>, the
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programmer can avoid unnecessary array copies.</li>
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</ul>
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</p>
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<p>
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Heptagon is developed in
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the <a href="http://www.di.ens.fr/ParkasTeam.html">Parkas (ENS)</a>
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and <a href="http://pop-art.inrialpes.fr">Pop-Art (LIG/INRIA)</a> research teams.
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</p>
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<h2>How to get it or try it</h2>
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<h3>Download</h3>
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Heptagon can be freely downloaded <a href="http://gforge.inria.fr/projects/heptagon">here</a>.
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<h3> Technical requirements</h3>
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The use of the Heptagon compiler by itself does not require any additional
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tools. However, the usual use involves a compiler for the generated code (target
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languages are currently C or Java).
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The tools below are optional or are related to some subparts of Heptagon:
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<ul>
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<li>The graphical display tool sim2chro can be obtained from
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<a href="http://www-verimag.imag.fr/~raymond/edu/distrib/">
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Verimag</a>. It can be used together with Heptagon's graphical simulator.</li>
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<li> <a href="https://gforge.inria.fr/projects/bzr">Sigali</a>, the
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controller synthesis tool, developed by the Espresso and Vertecs team at INRIA
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Rennes. </li>
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</ul>
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<h3>Contact </h3> Please
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contact <a href="mailto:heptagon-developers@lists.gforge.inria.fr">us</a> for
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further information.
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<h2>Main participants</h2>
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<table>
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<tr>
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<td>Gwena<6E>l Delaval</td>
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<td>Assistant Prof. at <a href="http://www.ujf-grenoble.fr/">UJF</a></td>
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<td>+33 4 76 61 54 31</td>
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<td><a href="mailto:gwenael.delaval@inria.fr">mail</a></td>
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<td><a href="http://pop-art.inrialpes.fr/people/delaval/">web</a></td>
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</tr>
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<tr>
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<td>L<>onard G<>rard</td>
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<td>PhD student at <a href="http://www.ens.fr/">ENS</a></td>
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<td></td>
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<td><a href="mailto:leonard.gerard at ens.fr">mail</a></td>
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<td></td>
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</tr>
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<tr>
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<td>Adrien Guatto</td>
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<td>PhD student at <a href="http://www.ens.fr/">ENS</a></td>
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<td></td>
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<td><a href="mailto:adrien dot guatto at ens dot fr">mail</a></td>
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<td><a href="http://www.di.ens.fr/~guatto/">web</a></td>
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</tr>
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<tr>
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<td>Herv<72> Marchand</td>
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<td>Researcher at <a href="http://www.inria.fr/">INRIA</a></td>
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<td>+33 2 99 84 75 09</td>
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<td><a href="mailto:herve.marchand@inria.fr">mail</a></td>
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<td><a href="http://www.irisa.fr/prive/hmarchan/">web</a></td>
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</tr>
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<tr>
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<td>C<>dric Pasteur</td>
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<td>PhD student at <a href="http://www.ens.fr/">ENS</a></td>
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<td></td>
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<td><a href="mailto:cedric dot pasteur at ens dot fr">mail</a></td>
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<td><a href="http://www.di.ens.fr/~pasteur/">web</a></td>
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</tr>
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<tr>
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<td>Marc Pouzet</td>
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<td>Professor at <a href="http://www.ens.fr/">ENS</a></td>
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<td></td>
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<td><a href="mailto:marc dot pouzet at ens dot fr">mail</a></td>
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<td><a href="http://www.di.ens.fr/~pouzet/">web</a></td>
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</tr>
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<tr>
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<td>Eric Rutten</td>
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<td>Researcher at <a href="http://www.inria.fr/">INRIA</a></td>
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<td>+33 4 76 61 55 50</td>
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<td><a href="mailto:eric.rutten@inria.fr">mail</a></td>
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<td><a href="http://sardes.inrialpes.fr/~rutten">web</a></td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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