Abstract: A power controller that controls power usage of a heterogeneous system is provided. The power controller receives a power usage cap for a heterogeneous system that includes multiple components. The power controller assigns priorities that respectively correspond to the multiple components. The power controller assigns power shifting ratios that respectively correspond to the multiple components. The power controller adjusts a total power usage of the multiple components to be within a threshold of the power usage cap by adjusting the power usage of individual components in a sequence defined by the assigned priorities. The power controller shifts a power usage from a first-priority component to a second-priority component (and so on) according to the assigned power shifting ratios.

Abstract: A power controller that controls power usage of a heterogeneous system is provided. The power controller receives a power usage cap for a heterogeneous system that includes multiple components. The power controller assigns priorities that respectively correspond to the multiple components. The power controller assigns power shifting ratios that respectively correspond to the multiple components. The power controller adjusts a total power usage of the multiple components to be within a threshold of the power usage cap by adjusting the power usage of individual components in a sequence defined by the assigned priorities. The power controller shifts a power usage from a first-priority component to a second-priority component (and so on) according to the assigned power shifting ratios.

Abstract: It is determined that a current node power consumption for a node is greater than a node power cap that defines a limit of power consumption for the node. Responsive to the current node power consumption being greater than the node power cap and until the current node power consumption is less than the node power cap, power reduction operations are performed. The power reduction operations comprise determining a power management zone of a plurality of power management zones having a lowest priority among the power management zones and having a power cap greater than a minimum power cap for the power management zone. The power reduction operations further comprise setting the power cap for the power management zone to a value less than a prior value assigned as the power cap for the power management zone.

Abstract: It is determined that a current node power consumption for a node is greater than a node power cap that defines a limit of power consumption for the node. Responsive to the current node power consumption being greater than the node power cap and until the current node power consumption is less than the node power cap, power reduction operations are performed. The power reduction operations comprise determining a power management zone of a plurality of power management zones having a lowest priority among the power management zones and having a power cap greater than a minimum power cap for the power management zone. The power reduction operations further comprise setting the power cap for the power management zone to a value less than a prior value assigned as the power cap for the power management zone.

Abstract: A zone power cap for a power management zone that defines a limit of power consumption for the power management zone is determined. The power management zone comprises a plurality of components, wherein the power management zone is associated with a controller. A set of one or more characteristics of a workload associated with the power management zone is determined. A component power cap for one or more of the plurality of components is set based, at least in part, on the set of one or more characteristics of the workload and the zone power cap.

Abstract: It is determined that a current node power consumption for a node is greater than a node power cap that defines a limit of power consumption for the node. Responsive to the current node power consumption being greater than the node power cap and until the current node power consumption is less than the node power cap, power reduction operations are performed. The power reduction operations comprise determining a power management zone of a plurality of power management zones having a lowest priority among the power management zones and having a power cap greater than a minimum power cap for the power management zone. The power reduction operations further comprise setting the power cap for the power management zone to a value less than a prior value assigned as the power cap for the power management zone.

Abstract: A zone power cap for a power management zone that defines a limit of power consumption for the power management zone is determined. The power management zone comprises a plurality of components, wherein the power management zone is associated with a controller. A set of one or more characteristics of a workload associated with the power management zone is determined. A component power cap for one or more of the plurality of components is set based, at least in part, on the set of one or more characteristics of the workload and the zone power cap.

Abstract: A zone power cap for a power management zone that defines a limit of power consumption for the power management zone is determined. The power management zone comprises a plurality of components, wherein the power management zone is associated with a controller. A set of one or more characteristics of a workload associated with the power management zone is determined. A component power cap for one or more of the plurality of components is set based, at least in part, on the set of one or more characteristics of the workload and the zone power cap.

Abstract: It is determined that a current node power consumption for a node is greater than a node power cap that defines a limit of power consumption for the node. Responsive to the current node power consumption being greater than the node power cap and until the current node power consumption is less than the node power cap, power reduction operations are performed. The power reduction operations comprise determining a power management zone of a plurality of power management zones having a lowest priority among the power management zones and having a power cap greater than a minimum power cap for the power management zone. The power reduction operations further comprise setting the power cap for the power management zone to a value less than a prior value assigned as the power cap for the power management zone.

Abstract: A method, apparatus and computer instructions are provided for controlling communications between controller devices over an I2C bus hardware interface and a separate communication line, such as a GPIO line. With thermal/power management firmware installed on a system controller device, communications between the system controller device and a real time embedded controller device are sent using a predefined protocol whereby the system controller generates commands to the embedded controller by first performing an I2C write with a command packet, followed immediately thereafter by an I2C read to get the return packet. The embedded controller processes the command and returns the response to the I2C read. In addition, the embedded controller is able to make the system controller aware that it has a communication request by interrupting the system controller by asserting the separate communication line, in response to which the system controller issues a status request command to the embedded controller.