Sustainability
High Performance Computing is energy-intensive, and running the cluster efficiently keeps both its environmental footprint and its running costs down. This page collects Anunna's approach to sustainable operation.
Powering down idle nodes
Compute nodes that are not in use are powered off automatically to save energy, and powered back on when the scheduler needs them. You may see this reflected as a powered-off state when inspecting cluster usage (see node usage).
Using resources efficiently
The most effective thing users can do is to request only the resources a job actually needs and no more — over-requesting CPUs, memory, or wall time ties up hardware that could otherwise be powered down or used by others. See Choosing a node (constraints) for sizing jobs appropriately.