`perun.backend.powercap_rapl`

Defines Intel RAPL related classes.

Module Contents

Classes

PowercapRAPLBackend

Powercap RAPL as a source of cpu and memory devices.

Attributes

`log`
`RAPL_PATH`
`DIR_RGX`
`SUBDIR_RGX`

perun.backend.powercap_rapl.log

perun.backend.powercap_rapl.RAPL_PATH = '/sys/class/powercap/'

perun.backend.powercap_rapl.DIR_RGX = 'intel-rapl:(\\d)$'

perun.backend.powercap_rapl.SUBDIR_RGX = 'intel-rapl:\\d:\\d$'

class perun.backend.powercap_rapl.PowercapRAPLBackend

Bases: perun.backend.backend.Backend

Powercap RAPL as a source of cpu and memory devices.

Uses the powercap filesystem files to gather device information and creates metrics for each available device

id = 'powercap_rapl'

name = 'Powercap RAPL'

description = 'Reads energy usage from CPUs and DRAM using Powercap RAPL'

setup(): Check Intel RAPL access.

close() → None: Backend shutdown code (does nothing for intel rapl).

visibleSensors() → Set[str]

Return string id set of visible devices.

Returns

Set[str]: Set with visible device ids.

getSensors(deviceList: Set[str]) → List[perun.data_model.sensor.Sensor]

Gather device objects based on a set of device ids.

Parameters

deviceListSet[str]: Set of device ids.

Returns

List[Sensor]: Device objects.