We will select PlanetLab nodes for your slice using the following
- Load average - We consider the load average of each
PlanetLab node, and attempt to find the least-loaded nodes for
you. The resource estimates on the advanced form are used to
determine if each node has the resources necessary to run
your experiment. We always exclude PlanetLab nodes that have
extremely high load averages.
- Sites - We will attempt to spread your nodes over as
many distinct sites as possible.
- Up - We only consider PlanetLab nodes that appear to be
up and responding to sliver creation requests.
- Disk space - We only consider PlanetLab nodes that have
at least 5% of their disk space free, so that your experiment
will have some room to write local files.
The 'All available nodes' and 'One node at each site' buttons
(on the 'More options' page) will attempt to get you as many nodes as
possible given the above criteria. These buttons can be used in
conjunction with the type selection box below to select all nodes of a
You can get other node selection policies, such as picking some (or
all) nodes yourself or requesting specific end-to-end link
characteristics, by creating an NS file and uploading it through the
'Advanced Experiment' page.