RID-Based Memory Addressing for Out-of-Order DIMM Transfers
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Solution Overview
Problem
Existing memory devices struggle with inefficient data transfer and command execution order, particularly in dual in-line memory modules (DIMMs), leading to delays and inefficiencies in responding to read commands.
Innovation Solution
Implementing a read identification (RID) number system that includes a first portion to identify data location and a second portion to uniquely identify commands, allowing DIMMs to respond to commands out of order and facilitate efficient data transfer between memory devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If memory devices process commands in sequential order, then command execution is simple to manage, but data transfer efficiency deteriorates due to delays and waiting times
Solution Approach 1:
The command structure is segmented into distinct fields including a read identification (RID) number that contains both address information and command identification. This segmentation allows the memory device to parse and process different parts of the command independently, enabling out-of-order execution while maintaining proper command tracking and association between commands and their corresponding data locations.
2Speed
If memory devices use traditional addressing methods, then addressing is straightforward, but response time deteriorates due to mandatory sequential command processing
Solution Approach 1:
The RID number is prepared in advance to contain both the address information and a unique command identifier. This preliminary encoding of multiple pieces of information into a single field allows the memory device to pre-process and queue multiple commands simultaneously, then execute them out of order based on completion status rather than arrival status, significantly reducing response time without complicating the addressing interface.
Data Source
AI summary
The present disclosure includes apparatuses and methods related to a memory apparatus and/or method for addressing in memory with a read identification (RID) number. An example apparatus can include a first memory device, a second memory device coupled to the first memory device, and a controller coupled to the first memory device and the second memory device, wherein the controller is configured to receive a read command requesting data from the first memory device, wherein the read command includes a read identification (RID) number that includes an address to identify a location of the data in the first memory device, and transfer the data from the location in the first memory device to the second memory device in response receiving the read command.