Скачать или смотреть What is InfiniBand? [2023]

InfiniBand is a high-speed interconnect technology used in high-performance computing (HPC) and data center environments. It provides a high-bandwidth, low-latency connection between servers, storage systems, and other network devices. InfiniBand is designed to address the demanding requirements of data-intensive and computationally intensive applications.

Key features of InfiniBand include:

High Bandwidth: InfiniBand offers very high data transfer rates, ranging from 10 Gbps (Gigabits per second) up to hundreds of Gbps, depending on the specific InfiniBand generation and hardware implementation. This high bandwidth enables fast data communication and reduces data transfer bottlenecks in HPC environments.

Low Latency: InfiniBand provides low-latency communication, which refers to the time delay between sending a message and receiving a response. Low latency is crucial in HPC applications, where quick data exchange and synchronization between nodes are required for parallel processing and high-performance computing tasks.

Scalability: InfiniBand supports a scalable architecture that allows for the creation of large-scale systems with thousands of nodes interconnected in a cluster or supercomputing environment. It provides efficient communication between nodes, allowing data to be exchanged among multiple systems simultaneously.

Remote Direct Memory Access (RDMA): InfiniBand utilizes RDMA technology, which enables direct data transfer between the memory of one node and the memory of another node without involving the processors. RDMA reduces CPU overhead and improves data transfer efficiency, resulting in faster communication and reduced latency.

Reliable Transport: InfiniBand incorporates various error detection and correction mechanisms to ensure reliable and accurate data transmission. It includes features like link-level and end-to-end error detection, automatic retransmission of corrupted data, and congestion control mechanisms to manage traffic flow.

InfiniBand is widely used in HPC environments, such as supercomputers, research institutions, and large data centers, where high-performance networking is critical for data-intensive applications. It enables fast and efficient communication between nodes, allowing for parallel processing, data sharing, and collaboration across a distributed computing environment.