Energy consumption trace

When a Batsim simulation is run with energy enabled (see Command-line Interface), Batsim outputs an energy-specific output file.
You can give a look at this evalys visualization example to see how to use such data.

This file is written as Batsim’s export prefix + consumed_energy.csv (the prefix is out/ by default, see Command-line Interface). This is a time series that contains the energy consumption of the platform (as defined as the sum of all the computing hosts of the platform) from time 0 to the current time. It contains the following fields in this order.

• time: The time point at which the measure has been done.

• energy: The amount of energy consumed in joules by the platform from time 0 to time.
  This metrics is robust, you can analyze/visualize it without concerns.

• wattmin: The minimum current power consumption of the platform, taking into account the power state into which each host is, and assuming that all hosts have an epsilon load (close to 0 without reaching it).

• epower: The average power consumption of the whole platform since last event to the current one. Use this value with caution as it can be subject to degenerate cases — e.g., when two successive events happen at the same time.

• event_type: The type of the event that occurred at time time.

  • s if the event is a job start

  • e if the event is a job end

  • p if the event is a host power state change