1 Université Laval, Calcul Québec, Calcul Canada Colosse Sun 6048 system 10 compute racks 960 nodes, 7680 cores 1 PB Lustre filesystem 1.

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Presentation transcript:

1 Université Laval, Calcul Québec, Calcul Canada Colosse Sun 6048 system 10 compute racks 960 nodes, 7680 cores 1 PB Lustre filesystem 1

Where are we measuring? 2 Université Laval, Calcul Québec, Calcul Canada 2 600V 3p 208V 3p UPS distribution panels 60kW lighting pumps transformers compute storage compute... metered rack PDU 40 PDUs total 1.2 MW electrical distribution Energy meter (kWh) Rack level power meters (W)... A- Electrical distribution meter Siemens 9330 power meter PRO: measures kWh, qualifies for L3 measurement CON: cannot isolate compute nodes B- Rack PDU APC 7866 metered PDU PRO: measures (almost) compute only CON: instantaneous kW only Selected A in order to achieve a L3 measurement

3 Université Laval, Calcul Québec, Calcul Canada HPL run on May 23 3 Energy measurement period: 30 s Core phase duration: s Application avg. power WCore phase avg. power WIdle period avg. power W

4 Université Laval, Calcul Québec, Calcul Canada Comments (1) 4 ~7h Ramping up, remplacing bad parts One node crashed Successful run Running HPL is expensive: One run lasts for several hours; Increases maintenance window significantly; Consumes a lot of energy to measure energy efficiency... :-/ For power measurement, a shorter benchmark would be beneficial Make it easier for a site in production to apply the new measurement methodology; Lower impact on downtime during a maintenance.

5 Date/Time,kWh imp,kWh exp,kWh net,kVARh imp,kVARh exp,kVARh net,kVAh imp,kW swd,kVAR swd,kVA swd,I avg swd,PF sign mean23/05/ :49:00.000, , , , , , , , , , , , /05/ :49:30.000, , , , , , , , , , , , /05/ :50:00.000, , , , , , , , , , , , /05/ :50:30.000, , , , , , , , , , , , /05/ :51:00.000, , , , , , , , , , , , /05/ :51:30.000, , , , , , , , , , , , /05/ :52:00.000, , , , , , , , , , , , /05/ :52:30.000, , , , , , , , , , , , /05/ :53:00.000, , , , , , , , , , , , /05/ :53:30.000, , , , , , , , , , , , /05/ :54:00.000, , , , , , , , , , , , /05/ :54:30.000, , , , , , , , , , , , /05/ :55:00.000, , , , , , , , , , , , /05/ :55:30.000, , , , , , , , , , , , /05/ :56:00.000, , , , , , , , , , , , /05/ :56:30.000, , , , , , , , , , , , /05/ :57:00.000, , , , , , , , , , , , /05/ :57:30.000, , , , , , , , , , , , /05/ :58:00.000, , , , , , , , , , , , /05/ :58:30.000, , , , , , , , , , , , /05/ :59:00.000, , , , , , , , , , , , /05/ :59:30.000, , , , , , , , , , , , /05/ :00:00.000, , , , , , , , , , , , /05/ :00:30.000, , , , , , , , , , , , /05/ :01:00.000, , , , , , , , , , , , /05/ :01:30.000, , , , , , , , , , , , /05/ :02:00.000, , , , , , , , , , , , /05/ :02:30.000, , , , , , , , , , , , /05/ :03:00.000, , , , , , , , , , , , /05/ :03:30.000, , , , , , , , , , , , /05/ :04:00.000, , , , , , , , , , , , /05/ :04:30.000, , , , , , , , , , , , /05/ :05:00.000, , , , , , , , , , , , /05/ :05:30.000, , , , , , , , , , , , Université Laval, Calcul Québec, Calcul Canada Comments (2) Direct access to the power/energy meter Turned out to be a very important point for us to achieve a L3 measurement Even better would be to have energy metering at the rack level Should be a HPC site design recommendation? 5 Ethernet