Distributed Gather Scatter Memory Node Operations
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Solution Overview
Problem
Networked memory nodes face performance and power overhead due to the need to transmit separate addresses and control commands for each data access, even when access patterns are sequential, limiting optimization opportunities.
Innovation Solution
Implementing gather and scatter operations across memory nodes, where a responding memory node receives requests to retrieve data from non-contiguous locations and store it in contiguous locations, reducing the need for fine-grain address and command transmission by packing multiple data elements into a single memory network packet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate address and control commands are transmitted for each data access, then precise data retrieval is enabled, but bandwidth consumption and power usage increase
Solution Approach 1:
The patent combines multiple address and control commands into a single aggregated command structure. Instead of transmitting separate address和控制命令 for each data element access, the system merges these into one consolidated command that specifies multiple memory locations and their corresponding data elements, reducing transmission overhead and power consumption while maintaining precise data retrieval capability
Solution Approach 2:
The patent performs preliminary grouping and aggregation of memory access requests before transmission. By pre-processing and consolidating multiple fine-grain access commands into a single coarse-grain command structure, the system reduces the number of transmissions required, thereby lowering power consumption while preserving the ability to precisely retrieve individual data elements
2Measurement precision
If separate address and control commands are transmitted for each data access, then accurate memory addressing is achieved, but transmission bandwidth is consumed
Solution Approach 1:
The patent merges multiple address and control commands into a single aggregated command that specifies multiple memory locations and their corresponding data elements. This consolidation reduces the total volume of transmitted information while maintaining the precision needed for accurate memory addressing of individual data elements
Solution Approach 2:
The system performs preliminary aggregation of memory access requests, grouping multiple fine-grain address commands into a single coarse-grain command structure before transmission. This pre-processing reduces bandwidth consumption by minimizing the number of separate transmissions while preserving addressing accuracy through the structured format of the aggregated command
3Measurement precision
If fine-grain address and command transmission is used, then precise data element access is enabled, but performance overhead increases
Solution Approach 1:
The patent combines multiple fine-grain address and control commands into a single aggregated command structure. This merging reduces the overhead associated with processing and transmitting individual commands for each data element, thereby improving memory access performance while maintaining the precision needed for accurate data element retrieval
Solution Approach 2:
The system performs preliminary consolidation of multiple memory access requests into a single aggregated command before execution. By pre-grouping fine-grain access commands, the system reduces processing overhead and improves performance while preserving the ability to precisely access individual data elements through the structured aggregated command format
Data Source
AI summary
Devices, methods, and systems for distributed gather and scatter operations in a network of memory nodes. A responding memory node includes a memory; a communications interface having circuitry configured to communicate with at least one other memory node; and a controller. The controller includes circuitry configured to receive a request message from a requesting node via the communications interface. The request message indicates a gather or scatter operation, and instructs the responding node to retrieve data elements from a source memory data structure and store the data elements to a destination memory data structure. The controller further includes circuitry configured to transmit a response message to the requesting node via the communications interface. The response message indicates that the data elements have been stored into the destination memory data structure.