Multiprotocol Storage Controller SOC for GPU Interconnect Bottlenecks
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Solution Overview
Problem
The integration of Graphics Processing Units (GPUs) into systems creates performance bottlenecks due to differing interconnect standards, limiting data transfer between GPUs and other components, which affects applications like AI and machine learning.
Innovation Solution
A multiprotocol storage controller system on a chip (SOC) with a switch and frame router enables interconnection of devices with different protocols, facilitating high-speed data transfer between GPUs and other components by address mapping and protocol encapsulation/de-capsulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional single-protocol storage controllers are used, then device compatibility is limited, but system complexity is reduced
Solution Approach 1:
The storage controller is designed with multiple protocol support (NVLink, PCIe, Ethernet, USB, SATA, SAS) integrated into a single device, enabling it to communicate with various types of devices using different protocols. This multi-functional design allows the controller to adapt to diverse storage and compute devices without requiring separate specialized controllers for each protocol type.
Solution Approach 2:
The controller acts as an intermediary device that receives data from one protocol interface and translates/forwards it to another protocol interface. The multiple network interface ports serve as mediators between devices with different communication protocols, enabling heterogeneous device interconnection through protocol conversion and data forwarding.
2Speed
If high-speed GPGPU interconnects are used, then data transfer speed is improved, but performance bottlenecks appear due to protocol mismatches
Solution Approach 1:
The controller dynamically adjusts communication parameters such as data rate, protocol type, and transmission mode based on the connected devices. It can operate at different speeds and protocol configurations to optimize data transfer between GPGPUs and other devices, changing parameters to match the capabilities of interconnected devices while maintaining high-speed performance.
3Productivity
If multiple heterogeneous network interface ports are integrated, then data transfer efficiency is improved, but device complexity increases
Solution Approach 1:
Multiple network interface ports supporting different protocols (NVLink, PCIe, Ethernet, USB, SATA, SAS) are merged into a single storage controller device. This consolidation allows the controller to handle multiple protocol interfaces and device types through one unified architecture, improving data transfer efficiency between GPGPUs and various storage devices while managing complexity through integration rather than separate devices.
Data Source
AI summary
A Multiprotocol Storage Controller (MPSC) System on a Chip (SOC) comprising multiple heterogeneous network interface ports, a switch core, a global memory mapper and a frame router. The interface ports capable of interconnecting networks of devices with differing data and signaling protocols and differing number of data and signal lines.