Embedded ALU in SSD Flash Memory for On-Device Processing
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Solution Overview
Problem
Current data storage systems, such as HDDs and SSDs, face limitations in processing capabilities within the storage device itself, leading to increased data transmission needs and reduced efficiency in performing functions like database management, image processing, and file system operations.
Innovation Solution
Incorporating an arithmetic logic unit (ALU) within the SSD or flash memory chips to enable on-device processing, allowing for mathematical and logical operations to be performed locally, reducing the need for external data transmission and enhancing processing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data processing is performed externally (host device), then processing capabilities are sufficient, but data transmission needs increase and efficiency decreases
Solution Approach 1:
The patent segments the computing system into multiple components: host device, SSD controller, and flash memory chips. Each component performs specific processing tasks locally rather than all processing being centralized at the host device. The flash memory chips perform local processing of data blocks, reducing the need for data transmission between components.
Solution Approach 2:
The patent adds a new dimension of processing capability by embedding ALUs within the flash memory chips themselves, moving processing from a single dimension (host device) to multiple dimensions (host device, SSD controller, and flash memory chips). This distributed architecture allows processing to occur at multiple levels simultaneously.
2Adaptability or versatility
If ALU is embedded in flash memory chips, then on-device processing capability increases, but device complexity increases
Solution Approach 1:
The patent merges the ALU (arithmetic logic unit) directly into the flash memory chip structure, combining storage and processing functions in a single component. This integration allows the flash memory chip to perform both data storage and data processing operations without requiring separate processing units.
Solution Approach 2:
The flash memory chip is designed with multi-functionality, serving as both a storage device and a processing unit. The embedded ALU enables the chip to perform mathematical and logical operations on stored data, making it a universal component that can handle both storage and computation tasks.
3Productivity
If data is transmitted outside SSD for processing, then processing can be performed, but transmission time and efficiency are reduced
Solution Approach 1:
The patent implements preliminary action by performing processing operations locally within the flash memory chip before data needs to be transmitted to the host device. The embedded ALU processes data blocks in-place, generating results that can be immediately used or stored, eliminating the need for preliminary data transmission for processing.
Data Source
AI summary
A system and method are disclosed for incorporating mathematical and/or logical functionality within a memory system (such as a solid state drive (SSD)). The mathematical and/or logical functionality may comprise an arithmetic logic unit (ALU). The ALU may be resident in one or both of flash memory chips or the SSD controller. When resident in the flash memory chips, a single ALU or multiple ALUs may be used. For example, a single ALU may be assigned to one, some, or each block of flash memory within the flash memory chip. As another example, an ALU may be assigned to a sub-block construct, such as to each bit line in the block. Having ALUs resident in the SSD enables more processing to be performed within the SSD and reduces the need to transmit data outside of the SSD for processing.