Modular Memory Controller for Low-Latency Zone Donation
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Solution Overview
Problem
Existing computing systems face challenges in efficiently managing memory pools due to increased user demands and complexity, leading to latency issues and suboptimal performance in memory allocation.
Innovation Solution
A modular cooperative-memory architecture with a memory device controller that includes multiple control circuits, allowing for dynamic allocation of memory units across different zones with varying capabilities, and a memory map management system to create logical memory spaces that meet performance targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If memory allocation is centralized in a single controller, then management is simplified, but latency increases and scalability is limited
Solution Approach 1:
The memory controller is segmented into multiple control circuits, each capable of independently managing memory zones. This segmentation allows parallel processing of memory allocation requests, reducing latency while distributing management complexity across multiple units that can operate autonomously
Solution Approach 2:
The system transitions from a single-dimension centralized controller to a multi-dimensional distributed architecture where control circuits are organized in zones. This dimensional expansion enables spatial parallelism, allowing simultaneous memory operations across different zones without increasing overall system complexity
2Quantity of substance
If memory capacity is increased to meet growing user demands, then storage capability improves, but access latency increases
Solution Approach 1:
The large memory capacity is segmented into multiple zones, each managed by a dedicated control circuit. This segmentation enables parallel access to different memory regions, maintaining high access speeds even as total capacity increases, since multiple operations can occur simultaneously across zones
Solution Approach 2:
Each memory zone is assigned specific characteristics and managed independently with local control circuits. This local quality approach allows optimization of access patterns for different memory regions, ensuring that increased capacity does not uniformly degrade access speed across the entire memory space
3Ease of operation
If memory allocation is rigid and static, then management is simple, but adaptability to different performance requirements deteriorates
Solution Approach 1:
The memory allocation system is made dynamic through independent control circuits that can autonomously allocate memory units based on real-time performance targets and availability. Each control circuit dynamically adjusts allocation decisions, providing flexibility while maintaining operational simplicity through decentralized autonomous operation
Solution Approach 2:
The system changes allocation parameters dynamically based on performance requirements and memory availability. Control circuits adjust allocation decisions by evaluating multiple parameters including performance targets, memory unit availability, and zone characteristics, enabling adaptability without complicating management through standardized evaluation criteria
Data Source
AI summary
Provided is a system and method for memory pool management, the method including receiving, by a first control circuit of a memory device controller, a first request to create a first logical memory space, the first control circuit being associated with a first memory zone, based on determining that a first memory unit, at a first physical address range of the first memory zone is available, allocating the first memory unit to the first logical memory space, based on determining that a second memory unit of the first memory zone is occupied, sending a memory-donation request to a second control circuit of the memory device controller, the second control circuit being associated with a second memory zone, and based on determining that a third memory unit of the second memory zone is available, allocating the third memory unit to the first logical memory space.