What is InfiniBand™

InfiniBand is an industry-standard specification that defines an input/output architecture used to interconnect servers, communications infrastructure equipment, storage and embedded systems. A true fabric architecture, InfiniBand leverages switched, point-to-point channels with data transfers that generally lead the industry, both in chassis backplane applications as well as through external copper and optical fiber connections.

Reliable messaging (send/receive) and memory manipulation semantics (RDMA) without software intervention in the data movement path ensure the lowest latency and highest application performance.This low-latency, high-bandwidth interconnect requires only minimal processing overhead and is ideal to carry multiple traffic types (clustering, communications, storage, management) over a single connection. As a mature and field-proven technology, InfiniBand is used in thousands of data centers for both HPC and AI

clusters that efficiently scale up to thousands of nodes.

This scalability is crucial for frameworks that require distributed processing across multiple compute nodes to handle complex and computationally intensive tasks. Through the availability of long reach InfiniBand over Metro and WAN technologies, InfiniBand is able to extend RDMA performance between data centers, across campus, to around the globe. NDR 400Gb/s InfiniBand is shipping today, and has a robust roadmap defining increased speeds well into the future. The current roadmap shows a projected demand for higher bandwidth with GDR 1.6Tb/s InfiniBand products planned for 2028 timeframe.

Figure 1, Topology Location of Infiniband in Supercomputing Network

Figure 2, IBTA Infiniband Roadmap Apr.5 2023

ACRONYM:

SDR - Single Data Rate

DDR - Double Data Rate

QDR - Quad Data Rate

FDR - Fourteen Data Rate

EDR - Enhanced Data Rate

HDR - High Data Rate

NDR - Next Data Rate

XDR - eXtreme Data Rate

GDR - Gxx Data Rate

Compatible InfiniBand (IB) Solutions for Mellanox

Mellanox is one of the leaders in Infiniband solutions. Etern Optoelectronics supports a full line of Mellanox compatible DAC and AOC solutions including 40G, 56G, 100G, 200G, 400G and 800Gb/s port data rate.Etern Optoelectronics’ standard and custom length cables fit the unique needs of any installation. Our Mellanox compatible InfiniBand solutions offer a new level of price, performance, and flexibility and are backed by an industry leading lifetime warranty.

Figure 3, Etern Optoelectronics AOCs for Infiniband Application

For more information, visit Etern Optoelectronics website: https://www.szetern.com, or email to: sales@szetern.com