MLcomp is a website for automatic and standarized execution of algorithms on datasets. It is now no longer active. You are encouraged to use CodaLab Worksheets; all the MLcomp datasets and programs have been uploaded to this CodaLab worksheet.

This README will give you instructions for running your own local copy of the website.

Important: always source the rc file in this directory prior to running any of the following commands. In bash, type:

. ./rc

MLcomp requires the following packages:

• ruby (version >= 1.8.7)
• rubygems (version >= 1.3.7)
• libopenssl-ruby
• mongrel (version >= 1.1.5)
• mysql-server (version >= 5.1.54)

On Ubuntu, these can be installed with the following command:

sudo apt-get install ruby rubygems libopenssl-ruby mongrel mysql-server

You will also need to install some Ruby gems:

gem install -v=2.1.1 rails
gem install json
gem install mysql
gem install packages/rails_sql_views-0.7.0.gem # We provide this file

Now we need to create the MLcomp database. Note: you need the mysql root password to do this. If you don't have it, ask your system administrator to run the commands in the script for you:

./init-db

Next, we update the database to the correct schema by running the Rails migrations:

./update-db

Finally, we seed the database with initial programs and datasets:

./seed-db

Now you can run MLcomp by typing:

./run-web-server # Starts the Rails web server (on port 3000 by default)

You should be able point your browser to http://localhost:3000 and see the MLcomp website.

The next step is to start the MLcomp master and workers so that you can actually create runs. To start the master, simply type in a different terminal from the web server:

./run-master

You can start MLcomp workers on any machines that you can ssh into from the master without a password. To do this, run ssh-keygen on the master and append .ssh/id_rsa.pub to .ssh/authorized_keys on the worker. Copy the worker directory into to the worker machine, and run:

cd worker && ./worker -server <master hostname>

Optional: on the master, you can run a process that periodically updates the database with general statistics about the programs/datasets (e.g., ratings):

./run-stats

Optional: on the master, you can run a process that enables command-line access to MLcomp (via the mlcomp-tool):

./run-command-server

And that's it! And now you should be able to create runs on your local website. The master will dispatch the runs to the workers, and the results will be sent back.

• site: where the Rails webserver and code reside
• var: DO NOT MODIFY -- this is where MLcomp stores programs/datasets/runs which have been uploaded and is synchronized with the database.
• domains: specification files for each domain in system along with helper programs and sample datasets to be uploaded.

To update MLcomp, type:

git pull
cd site && ./update-db

Handy database commands:

mysql -u rails_user mlcomp_development # Inspect the database
mysqldump -u rails_user mlcomp_development > mlcomp_development.backup # Dump database to a file
mysql -u rails_user < mlcomp_development.backup # Overwrite database with file (be careful!)

MLcomp programs uploaded by the user will require various software packages to run. MLcomp workers need to have these packages installed:

http://mlcomp.org/help/worker_info.html

These can be installed on Ubuntu by running:

sudo apt-get install g   mono-runtime ruby r-base-core octave3.2 clisp guile-1.8 ocaml ghc6 python-numpy python-scipy

Also install Sun Java 1.7 and Scala 2.9 manually.