Dynamic Pipeline Stage Activation for Power Management
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Solution Overview
Problem
Current processor power consumption is high due to inefficient pipeline designs, with many additional stages and modules consuming power even during low load conditions, leading to significant resource waste and environmental concerns, while existing power management techniques fail to achieve optimal balance between performance and power usage.
Innovation Solution
The method involves partitioning pipeline stages into base and enhanced stages, with base stages always active and enhanced stages activated or shut down based on performance requirements, using a controller to dynamically manage module activation and deactivation according to workload, allowing for adaptive power management without interfering with existing methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If enhanced pipeline stages and modules are added to improve processor performance, then computing speed and processing capability are improved, but power consumption increases significantly
Solution Approach 1:
The patent implements dynamic power management by making pipeline stages and modules可调 (adjustable) rather than static. Enhanced pipeline stages can be dynamically activated or deactivated based on workload requirements, and modules within stages can be selectively enabled. This dynamic configuration allows the processor to adapt its performance level to match actual computational needs, reducing power consumption during low-utilization periods while maintaining high performance when required.
Solution Approach 2:
The system changes operational parameters by adjusting the activation state of different pipeline stages and modules based on workload intensity. When workload is low, fewer stages are activated and modules are disabled, effectively changing the operational parameters of the processor to reduce capacitance and power consumption. When workload increases, more stages and modules are activated to restore full performance capability.
2Productivity
If additional pipeline stages are activated to meet performance requirements, then processing capability improves, but resource utilization efficiency decreases due to unnecessary power consumption during low load
Solution Approach 1:
The patent applies partial action by activating only the necessary portion of pipeline stages and modules required to meet current performance demands. Instead of keeping all enhanced stages continuously active, the system activates a subset of stages and modules proportional to the actual workload, thereby avoiding excessive power consumption while still achieving sufficient processing capability.
Solution Approach 2:
The power management system operates autonomously by monitoring workload conditions and automatically adjusting the activation state of pipeline stages and modules without external intervention. The processor self-regulates its power consumption by enabling or disabling components based on real-time performance requirements, eliminating the need for manual configuration or continuous external control.
3Reliability
If base pipeline stages are kept always active to ensure basic functionality, then system reliability is maintained, but power consumption cannot be reduced during low workload periods
Solution Approach 1:
The patent segments the pipeline architecture into distinct functional groups: base pipeline stages that provide essential functionality and enhanced pipeline stages that provide performance optimization. This segmentation allows independent control of each group, enabling the system to activate only base stages during low workload to maintain basic functionality with minimal power consumption, while activating enhanced stages only when additional performance is required.
Data Source
AI summary
A method for controlling a pipeline-based processor. The method includes determining a change in a workload. The method also includes activating or shutting down, by at least one controller circuit, one or more of the plurality of enhanced pipeline stages based on at least one corresponding enhanced stage priority level of the one or more of the plurality of enhanced pipeline stages and requirements for performance of the workload. The method additionally includes activating or shutting down, by the at least one controller circuit, one or more of the plurality of enhanced modules of the particular pipeline stage based on at least one corresponding priority level of the one or more of the plurality of enhanced modules of the particular pipeline stage and the requirements for the performance of the workload.