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From September 2018, electrical power consumption of every nodes at Lyon is monitored by new "wattmetres" devices, enhancing old wattmetres previously available.
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From September 2018, electrical power consumption of all nodes in Lyon (except Nova cluster) is monitored by new "wattmetre" devices from [http://www.omegawatt.fr/ Omegawatt], enhancing old wattmetres previously available.


For each plug supplying electrical power to Lyon nodes, wattmetres perform up to 50 measurments of the power consumption each second.
For each plug supplying electrical power to Lyon nodes, the wattmetre devices perform up to 50 measurements of the power consumption per second.


== Accessing monitoring data ==
Their usage is described in the [[Energy_consumption_monitoring_tutorial#On_Lyon_site_and_Grenoble.27s_yeti_cluster|Energy_consumption_monitoring_tutorial]].


{{Warning| text=Subject to change! API and URLs to access monitoring data are likely to change in the future.}}
Monitoring data from the old wattmetre server is archived and accessible under /grid5000/wattmetre-archives directory of Lyon site.


=== From Kwapi ===
The mapping between wattmetre ports and monitored hosts is described in the reference API. However, some information are not present yet:
 
* Wattmetre 3, port 25 & 26: hercule cluster (the 4 nodes share 2 PSU)
Wattmetre data is available using Kwapi. For instance, see [[Energy_consumption_monitoring_tutorial#Using_Kwapi for more information|Energy monitoring tutorial]] for more information about Kwapi usage. There is no changes in data stored in Kwapi compared to the old wattmetres: it still stores the average power consumption each second for every Lyon's nodes
* Wattmetre 3, port 28: "force10" network switch
 
* Wattmetre 3, port 29 & 30: wattmetre monitoring server
=== Getting access to raw values ===
* Wattmetre 1, port 34 : Infiniband switch ("swib")
 
* Wattmetre 1, port 36 & 37 : gw.lyon router
The "raw" data collected by wattmetres, including the 50 measurements made each second, is stored in CSV files and available for download at: TODO
* Wattmetre 1, port 39 : sagittaire switch ("swsag")
 
* Wattmetre 1, port 42 : albireo-a first PSU
TODO: Explain how mapping between nodes and (wattmetre, port) in CSV files is described in Ref API.
* Wattmetre 1, port 42 : albireo-b first PSU
 
* Wattmetre 1, port 42 : alcor first PSU
=== Getting "live" values directly from wattmetres ===
 
Live energy monitoring previously provided by "old" wattmetres remains available at URL http://wattmetre.lyon.grid5000.fr/GetWatts-json.php
 
It still provides for each node the average electrical power consumed during the latest second of measurements.
 
=== Getting access to old wattmetre data ===
 
Raw monitoring data stored on old wattmetre server is archived and accessible under /grid5000/wattmetre-archives at from Lyon site.

Latest revision as of 15:19, 18 January 2021

From September 2018, electrical power consumption of all nodes in Lyon (except Nova cluster) is monitored by new "wattmetre" devices from Omegawatt, enhancing old wattmetres previously available.

For each plug supplying electrical power to Lyon nodes, the wattmetre devices perform up to 50 measurements of the power consumption per second.

Their usage is described in the Energy_consumption_monitoring_tutorial.

Monitoring data from the old wattmetre server is archived and accessible under /grid5000/wattmetre-archives directory of Lyon site.

The mapping between wattmetre ports and monitored hosts is described in the reference API. However, some information are not present yet:

  • Wattmetre 3, port 25 & 26: hercule cluster (the 4 nodes share 2 PSU)
  • Wattmetre 3, port 28: "force10" network switch
  • Wattmetre 3, port 29 & 30: wattmetre monitoring server
  • Wattmetre 1, port 34 : Infiniband switch ("swib")
  • Wattmetre 1, port 36 & 37 : gw.lyon router
  • Wattmetre 1, port 39 : sagittaire switch ("swsag")
  • Wattmetre 1, port 42 : albireo-a first PSU
  • Wattmetre 1, port 42 : albireo-b first PSU
  • Wattmetre 1, port 42 : alcor first PSU
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