Nvidia ConnectX-7 User Manual page 15

Feature
RDMA and RDMA over
Converged Ethernet
(RoCE)
NVIDIA PeerDirect™
CPU Offload
NVIDIA Multi-Host
ConnectX-7, utilizing IBTA RDMA (Remote Data Memory Access) and RoCE (RDMA over
Converged Ethernet) technology, delivers low-latency and high-performance over
InfiniBand and Ethernet networks. Leveraging datacenter bridging (DCB) capabilities
as well as ConnectX-7 advanced congestion control hardware mechanisms, RoCE
provides efficient low-latency RDMA services over Layer 2 and Layer 3 networks.
PeerDirect™ communication provides high-efficiency RDMA access by eliminating
unnecessary internal data copies between components on the PCIe bus (for example,
from GPU to CPU), and therefore significantly reduces application run time.
ConnectX-7 advanced acceleration technology enables higher cluster efficiency and
scalability to tens of thousands of nodes.
Adapter functionality enables reduced CPU overhead allowing more available CPU for
computation tasks.
• Flexible match-action flow tables
• Open VSwitch (OVS) offload using ASAP
• Tunneling encapsulation/decapsulation
NVIDIA® Multi-Host technology enables next-generation Cloud, Web 2.0 and high-
performance data centers to design and build new scale-out heterogeneous compute
and storage racks with direct connectivity between multiple hosts and the centralized
network controller. This enables direct data access with the lowest latency to
significantly improve densities and maximizes data transfer rates. For more
information, please visit
Description
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®
NVIDIA Multi-Host Solutions.
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