What are HPC interconnects?

What are HPC interconnects?

High Performance Interconnect Ethernet is widely regarded as a cost-efficient solution used to connect smaller clusters, whereas InfiniBand and Omni-Path feature very high throughput and very low latency which is more useful for any larger requirements you may have.

What is Slingshot interconnect?

The HPE Slingshot interconnect network delivers high packet rates on IP, messaging, and remote memory access. Control your network bandwidth allocations. Control your network bandwidth allocations. The ability to manage network resources is highly developed in scale-out data centers but absent from many HPC systems.

What is InfiniBand used for?

InfiniBand is a channel-based fabric that facilitates high-speed communications between interconnected nodes. An InfiniBand network is typically made up of processor nodes, such as PCs, servers, storage appliances and peripheral devices. It also has network switches, routers, cables and connectors.

What is Cray slingshot?

Slingshot is Cray’s 8th major generation of high-performance network interconnects. Slingshot is the underlying interconnect of the Cray Shasta system. Slingshot diverges from prior interconnects in a number of ways including the switch to Ethernet.

What is the difference between InfiniBand and Ethernet?

InfiniBand also has much lower latency than Ethernet and, most importantly, it incorporates processing engines inside the network that accelerate data processing for deep learning and high-performance computing. These are key technology advantages for any compute- and data-intensive application.

What is Cray Shasta?

Battle/Hurricane computer The Cray Shasta supercomputer will feature 290,304 AMD Epyc 7002-series processor cores and 112 Nvidia Volta V100 GPUs, interconnected by a 200 gigabit per second Cray Slingshot network. The system will also feature 590 total terabytes (TB) of memory and 14 petabytes (PB) of usable storage.

What is difference between Ethernet and InfiniBand?

Does InfiniBand require a switch?

Yes, you can directly connect them.

Which is the popular network fabric used in HPE Cray server for high performance computing?

A high performance network for HPE Cray supercomputers and HPE HPC clusters designed for exascale era supercomputing of diverse simulation, modelling, AI and analytics workloads on one system.

Is InfiniBand faster than Ethernet?

Key difference between Ethernet and Infiniband, which makes Infiniband faster, is RDMA (Remote Direct Memory Access).

Who uses InfiniBand?

InfiniBand is backed by top companies in the industry, including the steering committee mem- bers: Compaq, Dell, Hewlett Packard, IBM, Intel, Microsoft, and Sun. In total, there are more than 220 members of the InfiniBand Trade Association.

Are Polaris slingshots reliable?

How Reliable Are Polaris Slingshots? The general consensus is that the Slingshot is in fact very reliable, they’re not perfect by any means but there are a lot of owners with significant miles on theirs with little or no issues.

Why is InfiniBand faster than Ethernet?

What is HPC cluster?

What is an HPC cluster? An HPC cluster consists of hundreds or thousands of compute servers that are networked together. Each server is called a node. The nodes in each cluster work in parallel with each other, boosting processing speed to deliver high performance computing.

What is Slingshot in Cray?

Slingshot is the underlying interconnect of the Cray Shasta system. Slingshot diverges from prior interconnects in a number of ways including the switch to Ethernet. Cray introduced a customized version of Ethernet specifically optimized for high-performance computing (named ‘HPC Ethernet’).

What is latency in HPC?

For HPC ap- plications latency is the time it takes a zero-length packet to be transmitted from one process on one node, through the NIC, through the switch, to a NIC on a second node and to a process on the second node.

What is InfiniBand in HPC?

InfiniBand (IB) is a computer networking communications standard used in high-performance computing that features very high throughput and very low latency. It is used for data interconnect both among and within computers.