https://wiki.anunna.wur.nl/index.php?action=history&feed=atom&title=Sustainability 2026-06-19T16:53:12Z Revision history for this page on the wiki MediaWiki 1.45.3 https://wiki.anunna.wur.nl/index.php?title=Sustainability&diff=2798&oldid=prev 2026-06-18T11:11:39Z

<p>Phase 2 P2.3: new § 1 page (skeleton) — green HPC; verifiable measures (idle-node power-down, right-sizing) + TODO for policy (via create-page on MediaWiki MCP Server)</p> <p><b>New page</b></p><div>&lt;!-- TODO: this page is a skeleton. Anunna&#039;s sustainability / green-HPC policy and any concrete measures (PUE figures, renewable-energy sourcing, hardware lifecycle, targets) need authoritative input from FB-IT. Search for &quot;TODO&quot; below. --&gt;<br /> <br /> 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&#039;s approach to sustainable operation.<br /> <br /> == Powering down idle nodes ==<br /> <br /> 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 [[Monitoring Jobs#Cluster-wide view: node_usage_graph | node usage]]).<br /> <br /> == Using resources efficiently ==<br /> <br /> 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.<br /> <br /> &lt;!-- TODO: add Anunna&#039;s sustainability policy and any concrete measures — energy sourcing, cooling/PUE, hardware lifecycle and reuse, and any institutional targets. --&gt;<br /> <br /> == See also ==<br /> <br /> * [[Monitoring Jobs]]<br /> * [[Choosing a node (constraints)]]<br /> * [[Tariffs]]</div>

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