Engineering at Meta

JUNE 12, 2024

There are several reasons for this failure, but this failure mode is seen more in the early life and settles as the server ages. HW network cable: In the general category of unreachable servers, these failures are also seen most often in the early life of the server. Both of these options had tradeoffs.

Infiniband 141

Infiniband Data Centers Topology Network 141

Engineering at Meta

MARCH 12, 2024

The other cluster features an NVIDIA Quantum2 InfiniBand fabric. Through careful co-design of the network, software, and model architectures, we have successfully used both RoCE and InfiniBand clusters for large, GenAI workloads (including our ongoing training of Llama 3 on our RoCE cluster) without any network bottlenecks.

Infiniband 145

Infiniband Data Centers Server Network 145

Engineering at Meta

AUGUST 5, 2024

We ensure that there is enough ingress bandwidth on the rack switch to not hinder the training workload. The BE is a specialized fabric that connects all RDMA NICs in a non-blocking architecture, providing high bandwidth, low latency, and lossless transport between any two GPUs in the cluster, regardless of their physical location.

Network 132

Network Networking Topology Data Centers 132

Router-switch

SEPTEMBER 25, 2024

In today’s high-speed networking world, optimizing and troubleshooting performance is crucial, especially with high-performance equipment like NVIDIA Infiniband switches. In this blog, we’ll share top tips for debugging and optimizing NVIDIA Infiniband networking performance.

Infiniband 40

Infiniband Network Networking Routers 40