Power Queries

Functions

Power Queries

Functions
rsmi_status_t	rsmi_dev_power_ave_get (uint32_t dv_ind, uint32_t sensor_ind, uint64_t *power)
	Get the average power consumption of the device with provided device index. More...
rsmi_status_t	rsmi_dev_current_socket_power_get (uint32_t dv_ind, uint64_t *socket_power)
	Get the current socket power (also known as instant power) of the device index provided. More...
rsmi_status_t	rsmi_dev_power_get (uint32_t dv_ind, uint64_t *power, RSMI_POWER_TYPE *type)
	A generic get which attempts to retieve current socket power (also known as instant power) of the device index provided, if not supported tries to get average power consumed by device. Current socket power is typically supported by newer devices, whereas average power is generally reported on older devices. This function aims to provide backwards compatability depending on device support. More...
rsmi_status_t	rsmi_dev_energy_count_get (uint32_t dv_ind, uint64_t *power, float *counter_resolution, uint64_t *timestamp)
	Get the energy accumulator counter of the device with provided device index. More...
rsmi_status_t	rsmi_dev_power_cap_get (uint32_t dv_ind, uint32_t sensor_ind, uint64_t *cap)
	Get the cap on power which, when reached, causes the system to take action to reduce power. More...
rsmi_status_t	rsmi_dev_power_cap_default_get (uint32_t dv_ind, uint64_t *default_cap)
	Get the default power cap for the device specified by dv_ind. More...
rsmi_status_t	rsmi_dev_power_cap_range_get (uint32_t dv_ind, uint32_t sensor_ind, uint64_t *max, uint64_t *min)
	Get the range of valid values for the power cap. More...

Detailed Description

These functions provide information about power usage.

Function Documentation

◆ rsmi_dev_power_ave_get()

rsmi_status_t rsmi_dev_power_ave_get	(	uint32_t	dv_ind,
		uint32_t	sensor_ind,
		uint64_t *	power
	)

Get the average power consumption of the device with provided device index.

Given a device index dv_ind and a pointer to a uint64_t power, this function will write the current average power consumption (in microwatts) to the uint64_t pointed to by power.

Deprecated:

rsmi_dev_power_get() is preferred due to providing backwards compatibility, which looks at both average and current power values. Whereas rsmi_dev_power_ave_get only looks for average power consumption. Newer ASICs will support current power only.

Parameters

[in]	dv_ind	a device index
[in]	sensor_ind	a 0-based sensor index. Normally, this will be 0. If a device has more than one sensor, it could be greater than 0.
[in,out]	power	a pointer to uint64_t to which the average power consumption will be written If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_current_socket_power_get()

rsmi_status_t rsmi_dev_current_socket_power_get	(	uint32_t	dv_ind,
		uint64_t *	socket_power
	)

Get the current socket power (also known as instant power) of the device index provided.

Given a device index dv_ind and a pointer to a uint64_t socket_power, this function will write the current socket power (in microwatts) to the uint64_t pointed to by socket_power.

Parameters

[in]	dv_ind	a device index
[in,out]	socket_power	a pointer to uint64_t to which the current socket power will be written to. If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_power_get()

rsmi_status_t rsmi_dev_power_get	(	uint32_t	dv_ind,
		uint64_t *	power,
		RSMI_POWER_TYPE *	type
	)

A generic get which attempts to retieve current socket power (also known as instant power) of the device index provided, if not supported tries to get average power consumed by device. Current socket power is typically supported by newer devices, whereas average power is generally reported on older devices. This function aims to provide backwards compatability depending on device support.

Given a device index dv_ind, a pointer to a uint64_t power, and type this function will write the current socket or average power (in microwatts) to the uint64_t pointed to by power and a pointer to its type RSMI_POWER_TYPE read.

Parameters

[in]	dv_ind	a device index
[in,out]	power	a pointer to uint64_t to which the current or average power will be written to. If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.
[in,out]	type	a pointer to RSMI_POWER_TYPE object. Returns the type of power retrieved from the device. Current power is RSMI_CURRENT_POWER and average power is RSMI_AVERAGE_POWER. If an error occurs, returns an invalid power type RSMI_INVALID_POWER - example device neither supports average power or current power. If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_energy_count_get()

rsmi_status_t rsmi_dev_energy_count_get	(	uint32_t	dv_ind,
		uint64_t *	power,
		float *	counter_resolution,
		uint64_t *	timestamp
	)

Get the energy accumulator counter of the device with provided device index.

Given a device index dv_ind, a pointer to a uint64_t power, and a pointer to a uint64_t timestamp, this function will write amount of energy consumed to the uint64_t pointed to by power, and the timestamp to the uint64_t pointed to by timestamp. The rsmi_dev_power_ave_get() is an average of a short time. This function accumulates all energy consumed.

Parameters

[in]	dv_ind	a device index
[in,out]	counter_resolution	resolution of the counter power in micro Joules
[in,out]	power	a pointer to uint64_t to which the energy counter will be written If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.
[in,out]	timestamp	a pointer to uint64_t to which the timestamp will be written. Resolution: 1 ns.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_power_cap_get()

rsmi_status_t rsmi_dev_power_cap_get	(	uint32_t	dv_ind,
		uint32_t	sensor_ind,
		uint64_t *	cap
	)

Get the cap on power which, when reached, causes the system to take action to reduce power.

When power use rises above the value power, the system will take action to reduce power use. The power level returned through power will be in microWatts.

Parameters

[in]	dv_ind	a device index
[in]	sensor_ind	a 0-based sensor index. Normally, this will be 0. If a device has more than one sensor, it could be greater than 0.
[in,out]	cap	a pointer to a uint64_t that indicates the power cap, in microwatts If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_power_cap_default_get()

rsmi_status_t rsmi_dev_power_cap_default_get	(	uint32_t	dv_ind,
		uint64_t *	default_cap
	)

Get the default power cap for the device specified by dv_ind.

The maximum power cap be temporarily changed by the user. However, this function always returns the default reset power cap. The power level returned through power will be in microWatts.

Parameters

[in]	dv_ind	a device index
[in,out]	default_cap	a pointer to a uint64_t that indicates the default power cap, in microwatts If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_power_cap_range_get()

rsmi_status_t rsmi_dev_power_cap_range_get	(	uint32_t	dv_ind,
		uint32_t	sensor_ind,
		uint64_t *	max,
		uint64_t *	min
	)

Get the range of valid values for the power cap.

This function will return the maximum possible valid power cap max and the minimum possible valid power cap min

Parameters

[in]	dv_ind	a device index
[in]	sensor_ind	a 0-based sensor index. Normally, this will be 0. If a device has more than one sensor, it could be greater than 0.
[in,out]	max	a pointer to a uint64_t that indicates the maximum possible power cap, in microwatts If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.
[in,out]	min	a pointer to a uint64_t that indicates the minimum possible power cap, in microwatts If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid