Differentiated Power Scaling for Per-Device Efficiency Allocation
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Solution Overview
Problem
Conventional power management systems for semiconductor devices uniformly adjust power levels across all devices, failing to account for individual performance benefits, leading to inefficient power utilization.
Innovation Solution
A power management system with differentiated power scaling that utilizes activity monitors to count performance benefit estimation events, dynamically adjusting power distribution based on relative power utilization efficiency of each device, redistributing power to devices with higher efficiency during higher performance modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If uniform power scaling is applied to all devices, then power management simplicity is maintained, but power utilization efficiency deteriorates
Solution Approach 1:
The patent applies differentiated power scaling where each device receives customized power adjustments based on its performance benefit estimate, rather than uniform scaling. The power manager individually adjusts power levels for each device according to its measured performance characteristics, optimizing power utilization efficiency while maintaining manageable control through automated per-device monitoring and adjustment.
2Productivity
If power is increased for higher performance mode, then device performance is improved, but overall power consumption increases
Solution Approach 1:
The patent dynamically changes power parameters on a per-device basis during performance mode transitions. Instead of uniformly increasing power for all devices, the system adjusts power levels individually based on each device's performance benefit estimate, allowing the system to achieve higher performance when needed while minimizing overall power consumption by only increasing power where it provides the greatest performance benefit.
3Device complexity
If power is distributed equally to all devices, then system simplicity is maintained, but power allocation efficiency deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where devices report their performance benefit estimates to the power manager, which then uses this information to adjust power distribution. This closed-loop feedback system enables efficient power allocation based on actual device performance characteristics while maintaining relatively simple control architecture through automated monitoring and adjustment.
Data Source
AI summary
A power management system with differentiated power scaling including multiple activity monitors and a differentiated power manager. Each activity monitor counts performance benefit estimation events of each of multiple devices to determine performance benefit estimate values, each being a measure of relative power utilization efficiency of a corresponding device. The differentiated power manager periodically evaluates the performance benefit estimate values and dynamically adjusts relative power provided to each device to achieve differentiated power scaling based on the performance benefit estimate values. Additional power available during a higher performance mode may be distributed only to those devices with higher performance benefit estimate values. During any mode of operation, the power provided to those devices with lower performance benefit estimate values may be redirected to those devices with higher performance benefit estimate values. Power may thus be distributed in an unequal manner to benefit those devices operating at higher efficiency.