gpu networking

A 2026 engineering runbook for GPUDirect RDMA validation: qualify GPU-NIC topology, select DMA-BUF or nvidia-peermem, and verify registration, transfer correctness, and evidence limits.

A 2026 analyst comparison of InfiniBand, NVIDIA Spectrum-X, RoCEv2, and Ultra Ethernet for AI clusters, with Dell'Oro and 650 Group market data, latency benchmarks, and case studies from Meta, xAI, and Oracle.