|Version 20 (modified by 14 years ago) ( diff ),|
How to get started
A typical experiment requires the following three steps:
Running the Experiment
During your approved time slot, you will be able to ssh into the console of the respective grid. A console is a dedicated machine that allows access to all resources on that grid.
Currently, this requires a two step process.
- You first need to log into gateway.orbit-lab.org with your Orbit credentials using SSH.
- During your approved time slot, you can then log into the console corresponding to the following table using SSH:
|Main grid (400 nodes)||console.grid.orbit-lab.org|
|Sandbox 1 (2 nodes)||console.sb1.orbit-lab.org|
|Sandbox 2 (2 nodes)||console.sb2.orbit-lab.org|
|Sandbox 5 (2 nodes)||console.sb5.orbit-lab.org|
|Sandbox 6 (2 nodes)||console.sb6.orbit-lab.org|
|Sandbox 9 (64 nodes)||console.sb9.orbit-lab.org|
For e.g to access the smaller grid (64 nodes),
yourhost>ssh firstname.lastname@example.org gateway> ssh email@example.com
When you have successfully logged in, you can start an experiment using the nodehandler. First time users are highly encouraged to reserve time on a sandbox instead of the main grid, and start with the built-in Hello World experiment. This experiment will send UDP datagrams of 1024 bytes from node 1-1 to node 1-2 at 300 kbps CBR traffic. Both, sender and receiver, report measurements to a database, using our OML measurement framework.
The experiment can be started with:
user#> nodehandler -t
More information on writing experiment scripts can be found in the Tutorial.
Orbit provides a sophisticated framework to efficiently collect measurements at runtime into a database. This database is accessible to the experimenter during the experiment from the console. At the end of an experiment, the database is copied to an external machine and is accessible without a reservation. More information can be found here.
Where to go from here
- Schedule-howto3.jpg (128.8 KB ) - added by 7 years ago.
- Schedule-howto4.jpg (56.7 KB ) - added by 7 years ago.
- Schedule-howto5.jpg (49.3 KB ) - added by 7 years ago.
- Schedule-HowTo6.jpg (66.6 KB ) - added by 7 years ago.
) - added by 5 years ago.
Demo result pae
Download all attachments as: .zip