Version 3 (modified by Fraida Fund, 9 years ago) (diff)


The Idea

Experiment Design

Step 1: Choose the application that you want to run on the WiMAX nodes (or create a new one)

A number of already-OMLized applications are already available.

In this case, we will run two applications that we've written ourselves: a sensor application that collects measurements from temperature, humidity, and light sensors attached to the node, and a wmxstat application that collects measurements about the state of the WiMAX link.

Both of these applications are Ruby scripts.

Step 2: If you've written your own application, instrument it with OML so that you can collect measurements from it during experiment runtime

These applications were instrumented with the oml4r Ruby client library.

OML client libraries are also available for Python and C or C++.

Experiment Deployment

Step 3: Create a disk image with your applications installed

Log onto a testbed and load a baseline disk image onto a node:

omf load -i baseline-witest.ndz -t omf.witest.node1

Log onto the node (ssh root@node1) and install your applications and any required files.

Then save your disk image:

omf save -n omf.witest.node1

This can take a while, so we've already created a disk image for use in this tutorial. It's called gec15sensor.ndz

You can load this disk image onto any number of nodes, e.g.:

omf load -i gec15sensor.ndz -t omf.witest.node1,omf.witest.node2,omf.witest.node3,omf.witest.node4,omf.witest.node5,omf.witest.node6,omf.witest.node7

Step 4: If you've written and instrumented your own applications, you will

OML-enabled Applications

Custom Application

Experiment Execution

Experiment Description

Running OMF Experiment

Changing Parameters