Agregated machine state trace

Machine state change tracing can be enabled with the option –trace-machine-state (see Command-line Interface).

This file is written as Batsim’s export prefix + machine_states.csv (the prefix is out/ by default, see Command-line Interface). This is a time series that contains the number of hosts in each kind of state over time. Please refer to Energy model for more information about the existing kinds of states. It contains the following fields in this order.

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

• nb_sleeping: The number of hosts currently in a sleeping power state.

• nb_switching_on: The number of hosts currently transitioning into a computation power state.

• nb_switching_off: The number of hosts currently transitioning into a sleeping power state.

• nb_idle: The number of hosts currently in a computation power state, but without a job running on them.

• nb_computing: The number of hosts currently in a computation power state, with a job running on them.