Abstract: Methods and apparatus for balancing power between discrete components, such as processing units (e.g., CPUs) and accelerators in a compute node or platform. Power consumption of the compute platform is monitored to detect for conditions under which a threshold (e.g., power supply capacity threshold) is exceeded. In response, the operating frequencies of a processing unit and/or other platform components such as accelerators, are adjusted to reduce the power consumption of the platform to return below the threshold. Power limit biasing hints (scaling weights) are provided to platform components, along with a power violation index, which are used to adjust the operating frequencies of the platform components. Optionally, a processing unit can calculate the power violation index and the scaling weights and directly control the frequencies of itself and platform components. Embodiments of multi-socket platforms are also provided.

Abstract: Various embodiments comprise a protective circuit to connect at least two voltage rails to each other upon detection of the loss of the supply voltage that provides input power to the voltage regulators. The protective circuit may cause the two outputs of the voltage regulators to be connected to each other through a resistor when such a loss occurs. This in turn may prevent possible circuit damage in the load by preventing the higher output voltage from dropping below the lower output voltage if the capacitors on the outputs of the voltage regulators discharge at different rates. Such a reverse-voltage condition might otherwise cause damage in the load circuitry.

Abstract: Various embodiments comprise a protective circuit to connect at least two voltage rails to each other upon detection of the loss of the supply voltage that provides input power to the voltage regulators. The protective circuit may cause the two outputs of the voltage regulators to be connected to each other through a resistor when such a loss occurs. This in turn may prevent possible circuit damage in the load by preventing the higher output voltage from dropping below the lower output voltage if the capacitors on the outputs of the voltage regulators discharge at different rates. Such a reverse-voltage condition might otherwise cause damage in the load circuitry.