Grenoble:Wattmetre

The electrical power consumption of the yeti and troll clusters in Grenoble is measured by wattmetre devices from Omegawatt (same as nodes in Lyon or Nancy).

50 measurements per second are recorded for every power supply unit of those clusters' nodes.

Each troll node has a single power supply unit (PSU) and each yeti node has redundant power supply units.

	Note
	Until 2022-09-01, the power consumption of the dahu cluster was also measured, although not available in kwollect (because measured by groups of 4 nodes). Dahu nodes aren't measured anymore due to hardware issues with the wattmetres (see the former version of this page for more information on the dahu measures).