https://github.com/ceteri/exelixi

Exelixi is a distributed framework based on Apache Mesos, mostly implemented in Python using gevent for high-performance concurrency. It is intended to run cluster computing jobs (partitioned batch jobs, which include some messaging) in pure Python. By default, it runs genetic algorithms at scale.
https://github.com/ceteri/exelixi

Last synced: 3 months ago
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Exelixi is a distributed framework based on Apache Mesos, mostly implemented in Python using gevent for high-performance concurrency. It is intended to run cluster computing jobs (partitioned batch jobs, which include some messaging) in pure Python. By default, it runs genetic algorithms at scale.

• Host: GitHub
• URL: https://github.com/ceteri/exelixi
• Owner: ceteri
• License: apache-2.0
• Created: 2013-11-17T00:53:07.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2014-01-17T20:02:27.000Z (over 10 years ago)
• Last Synced: 2024-01-18T18:29:07.814Z (5 months ago)
• Language: Python
• Homepage:
• Size: 12.1 MB
• Stars: 131
• Watchers: 11
• Forks: 23
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-mesos - Exelixi

README

        
# Exelixi

**Exelixi** is a distributed framework based on [Apache Mesos],

mostly implemented in Python using [gevent] for high-performance concurrency

It is intended to run cluster computing jobs (partitioned batch jobs, which include some messaging) in pure Python.

By default, it runs [genetic algorithms] at scale.

However, it can handle a broad range of other problem domains by 

using `--uow` command line option to override the `UnitOfWorkFactory` class definition.

Please see the [project wiki](https://github.com/ceteri/exelixi/wiki) for more details,

including a [tutorial](https://github.com/ceteri/exelixi/wiki/Tutorial:-Fog-Computing-at-Hella-Scale)

on how to build Mesos-based frameworks.

### Quick Start

To check out the [GA] on a laptop (with Python 2.7 installed), simply run:

    ./src/ga.py

Otherwise, to run at scale, the following steps will help you get **Exelixi** running on [Apache Mesos].

For help in general with command line options:

    ./src/exelixi.py -h

The following instructions are based on using the [Elastic Mesos] service,

which uses Ubuntu Linux servers running on [Amazon AWS].

Even so, the basic outline of steps shown here apply in general.

First, launch an [Apache Mesos] cluster.

Once you have confirmation that your cluster is running

(e.g., [Elastic Mesos] sends you an email messages with a list of masters and slaves)

then use `ssh` to login on any of the masters:

    ssh -A -l ubuntu 

You must install the [Python bindings](https://github.com/apache/mesos/tree/master/src/python) for [Apache Mesos].

The default version of Mesos changes in this code as there are updates to [Elastic Mesos](https://elastic.mesosphere.io/),

since the tutorials are based on that service.

You can check [http://mesosphere.io/downloads/](http://mesosphere.io/downloads/) for the latest.

If you run Mesos in different environment, 

simply make a one-line change to the `EGG` environment variable in the `bin/local_install.sh` script.

Also, you need to install the **Exelixi** source.

On the Mesos master, download the `master` branch of the **Exelixi** code repo on GitHub and install the required libraries:

    wget https://github.com/ceteri/exelixi/archive/master.zip ; \

    unzip master.zip ; \

    cd exelixi-master ; \

    ./bin/local_install.sh

If you've customized the code by forking your own GitHub code repo, then substitute that download URL instead.

Alternatively, if you've customized by subclassing the `uow.UnitOfWorkFactory` default [GA],

then place that Python source file into the `src/` subdirectory.

Next, run the installation command on the master, to set up each of the slaves:

    ./src/exelixi.py -n localhost:5050 | ./bin/install.sh

Now launch the Framework, which in turn launches the worker services remotely on slave nodes.

In the following case, it runs workers on two slave nodes:

    ./src/exelixi.py -m localhost:5050 -w 2

Once everything has been set up successfully, the log file in `exelixi.log` will show a line:

    all worker services launched and init tasks completed

From there, the [GA] runs.

See a [GitHub gist](https://gist.github.com/ceteri/7609046) for an example of a successful run.

### Blame List

[Paco Nathan](https://github.com/ceteri)

[Amazon AWS]: http://aws.amazon.com/

[Apache Mesos]: http://mesos.apache.org/

[Elastic Mesos]: https://elastic.mesosphere.io/

[GA]: http://en.wikipedia.org/wiki/Genetic_algorithm

[Python egg]: https://wiki.python.org/moin/egg

[genetic algorithms]: http://en.wikipedia.org/wiki/Genetic_algorithm

[gevent]: http://www.gevent.org/