Adaptive Memory System Dynamic Voltage and Temperature Control
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Solution Overview
Problem
Computers with static memory configurations often experience impaired performance due to mismatched memory access patterns, leading to inefficient memory access and increased energy consumption, particularly in systems executing multiple programs with varying memory access demands.
Innovation Solution
An adaptive memory system that uses an adaptive controller to monitor memory performance metrics and adjust voltage or temperature settings of a temperature-controlled memory domain based on predicted memory performance demand, balancing performance and energy consumption to match changing memory access patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If memory configuration is made static to simplify system design, then device complexity is reduced, but memory access performance deteriorates due to mismatched access patterns
Solution Approach 1:
The patent implements dynamic memory configuration by allowing the memory system to adjust its operational parameters (such as clock frequency, voltage, or memory controller settings) based on detected access patterns. The memory configuration changes from static to adaptive, enabling the system to optimize performance for different workload types while maintaining manageable complexity through automated detection and adjustment mechanisms.
2Productivity
If memory configuration is optimized for specific access patterns to improve performance, then memory access performance is improved, but adaptability to varying programs deteriorates
Solution Approach 1:
The patent employs feedback mechanisms where the memory system continuously monitors access patterns and uses this information to dynamically adjust its configuration. The feedback loop enables the memory to adapt to different program requirements by detecting changes in access behavior and reconfiguring accordingly, thus maintaining both high performance and versatility across varying workloads.
Solution Approach 2:
The patent utilizes parameter changes by modifying memory operational parameters (such as clock speed, voltage levels, or controller timing) based on detected access patterns. This allows the memory system to optimize its performance characteristics for different types of memory access behaviors while maintaining the ability to switch between different parameter sets to handle diverse program requirements.
3Productivity
If memory operates at high performance settings continuously, then memory access performance is maintained, but energy consumption increases
Solution Approach 1:
The patent implements periodic adjustment of memory performance settings based on detected access patterns rather than maintaining continuous high-performance operation. The memory system periodically evaluates whether high-performance settings are actually needed based on current workload characteristics, switching to lower-power modes when high performance is not required, thus reducing overall energy consumption while maintaining performance when needed.
Data Source
AI summary
Described apparatuses and methods control a voltage or a temperature of a memory domain to balance memory performance and energy use. In some aspects, an adaptive controller monitors memory performance metrics of a host processor that correspond to commands made to a memory domain of a memory system, including one operating at cryogenic temperatures. Based on the memory performance metrics, the adaptive controller can determine memory performance demand of the host processor, such as latency demand or bandwidth demand, for the memory domain. The adaptive controller may alter, using the determined performance demand, a voltage or a temperature of the memory domain to enable memory access performance that is tailored to meet the demand of the host processor. By so doing, the adaptive controller can manage various settings of the memory domain to address short- or long-term changes in memory performance demand.