Processor Power Limit Adjustment via Die-Throttle Temperature Difference

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Solution Overview

Problem

Current thermal management solutions for data centers and servers are restrictive and inefficient, as they fail to dynamically adjust power limits to accommodate varying workloads and temperatures, leading to potential processor damage and reduced server deployments.

Innovation Solution

A processor adaptive thermal management system that dynamically adjusts power limits based on temperature differences relative to a set activation point, decreasing power when temperatures approach a threshold to prevent overheating and increasing it when safe, thereby maintaining thermal specifications within ASHRAE guidelines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conservative power limits are imposed to ensure thermal safety, then processor reliability is improved, but productivity and server deployment flexibility deteriorate

Engineering Contradiction:
Improveprocessor thermal safetyVSAvoidserver deployment flexibility
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent implements dynamic power limit adjustment based on real-time temperature monitoring. The system transitions from static conservative power limits to dynamic limits that adapt to actual thermal conditions, allowing higher power limits when temperatures are low and reducing power limits only when thermal thresholds are approached, thus resolving the contradiction between reliability and productivity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the power limit parameter dynamically based on temperature measurements. By continuously monitoring die temperature and adjusting the power limit parameter in response to thermal conditions, the system maintains processor safety while maximizing performance opportunities, addressing the contradiction between thermal safety and deployment flexibility

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If static power limits are used to simplify thermal management, then device complexity is reduced, but adaptability to varying workloads deteriorates

Engineering Contradiction:
Improvethermal management systemVSAvoidworkload adaptation
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent implements a feedback mechanism where temperature sensors continuously monitor processor die temperature, and the monitored temperature information feeds back to the power limit adjustment logic. This closed-loop feedback system automatically adapts power limits to varying workloads without complex manual configuration, resolving the contradiction between simplicity and adaptability

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The thermal management system performs self-adjustment based on temperature monitoring without requiring external intervention. The system automatically detects thermal conditions and adjusts power limits accordingly, providing adaptability to varying workloads while maintaining relatively simple system architecture through autonomous operation

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10817039B2Adjusting a power limit in response to a temperature difference
Publication Date: 2020.10.27 HEWLETT PACKARD ENTERPRISE DEV LP
  • US10817039B2 patent drawing
  • US10817039B2 patent drawing
  • US10817039B2 patent drawing

AI summary

Examples herein relate to an adjustment of a power limit of a processor. Examples disclose setting the power limit of the processor. The examples also obtaining a temperature difference between a die temperature of a core within the processor and a throttle temperature. In response to a determination that the temperature difference is at most equal to a temperature activation point, adjusting the power limit of the processor so that the adjust power limit is less than the set power limit.