Shared Memory Inter-Node Management in Multi-Node Systems
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Solution Overview
Problem
Multi-node computing systems face challenges in efficient inter-node communication and management, particularly in sharing resources and monitoring data across nodes, which limits centralized control and data analysis capabilities.
Innovation Solution
Implementing a shared memory system with an inter-node management unit that enables nodes to access and manage global memory for system management commands and monitoring data, using techniques like cache-coherent shared memory and RDMA, allowing for centralized control and data analysis across nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If nodes communicate by passing messages to each other, then inter-node communication is established, but communication efficiency and data sharing speed are limited
Solution Approach 1:
The patent merges the communication mechanism with the memory system by implementing shared memory that is directly accessible by multiple nodes. Instead of separate message passing protocols, nodes access a common memory space, combining data storage and communication functions into a single integrated system, thereby improving communication speed while reducing overall system complexity.
Solution Approach 2:
The shared memory acts as an intermediary between nodes, providing a common access point that mediates data exchange. Rather than nodes directly exchanging messages through complex protocols, they both access the shared memory space, which simplifies the communication mechanism while maintaining high-speed data transfer capabilities.
2Adaptability or versatility
If nodes operate as independent units, then system modularity is maintained, but centralized control and coordination capabilities are limited
Solution Approach 1:
The shared memory system serves multiple functions simultaneously: it acts as both storage and communication medium, provides both decentralized access (maintaining node independence) and centralized control (through common access points), and enables both data sharing and coordination. This multi-functionality allows the system to maintain modularity while gaining centralized control capabilities without significantly increasing architectural complexity.
3Productivity
If shared memory is implemented for inter-node access, then data sharing efficiency is improved, but memory access consistency and coherence become challenging
Solution Approach 1:
The patent implements feedback mechanisms through memory management units that monitor and track memory access patterns across nodes. When coherence issues are detected or when write operations occur, the system provides feedback to other nodes to invalidate or update their cached copies, ensuring consistency while maintaining high data sharing efficiency through selective synchronization rather than continuous validation.
Data Source
AI summary
A system management command is stored in a management partition of a global memory by a first node of a multi-node computing system. The global memory is shared by each node of the multi-node computing system. In response to an indication to access the management partition, the system management command is accessed from the management partition by a second node of the multi-node computing system. The system management command is executed by the second node. Executing the system management command includes managing the second node.