OpenMOLE (Open MOdeL Experiment) is a workflow engine designed to leverage the computing power of distributed execution environments for naturally parallel processes. A process is told naturally parallel if the same computation runs many times for a set of different inputs, such as model experiment or data processing. OpenMOLE can be used as a desktop application and embedded in web applications. It is a free software distributed under the AGPLv3 free software license.

Programming language: Scala
License: GNU Affero General Public License v3.0
Latest version: v12.1

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OpenMOLE (Open MOdeL Experiment) has been developed since 2008 as a free and open-source platform. It offers tools to run, explore, diagnose and optimize your numerical model, taking advantage of distributed computing environments. With OpenMOLE you can explore your already developed model, in any language (Java, Binary exe, NetLogo, R, SciLab, Python, C++...).

OpenMOLE is distributed under the AGPLv3 free software license.

OpenMOLE by example

Before you use OpenMOLE, you need:

  • a program you want to study
  • to be able to run this program using a command line
  • to be able to set some inputs of the program
  • to be able to get some outputs variable or some output files out of this program

Then use OpenMOLE:

  • embed the executable of your program in OpenMOLE using (5 minutes)
  • use one of the distributed exploration algorithms provided by OpenMOLE (5 minutes)
  • launch the exploration indeferently on your laptop (10 seconds)
  • or on a distributed execution environment with thousands of machines (1 minute).

To summarize, you can model exploration processes at scale reusing legacy code and advanced numeric methods in approximately 10 minutes.

Try it!

To checkout OpenMOLE you can play with to the demo site (this site is wiped out every few hours). You should click on the little cart and try out some of the market place examples.

OpenMOLE Features:

  • Expressive syntax – A Domain Specific Language to describe your exploration processes,
  • Transparent distributed computing – Zero-deployment (no installation step) approach to distribute the workload transparently on your multi-core machines, desktop-grids, clusters, grids, ...
  • Works with your programs – Embed user’s executables (Java, Binary exe, NetLogo, R, Scilab, Python, C++, ...),
  • Scalable – Handles millions of tasks and TB of data,
  • Advanced methods – Advanced numerical experiments (design of experiments, optimization, calibration, sensitivity analysis, ...).

OpenMOLE Avanced Features:

  • Workflow plateform – Design scientific workflows that may use legacy code,
  • Distributed genetic algorithms - Distribute the computation of your fitness functions,
  • Distributed computing - A high level aproach to distributed computing.

*Note that all licence references and agreements mentioned in the OpenMOLE README section above are relevant to that project's source code only.