dcgm
3 articles
GPU PCIe Link Troubleshooting: Speed, Lanes and Errors
A 2026 GPU PCIe link troubleshooting guide for server engineers: verify negotiated speed and width, decode AER errors, trend replay counters, and collect controlled bandwidth evidence before OEM escalation.
October 14, 2026• 26 min read
gpu pcie link troubleshootingpcie link speedpcie link width
nvidia-smi topo Rank Binding: GPU, CPU and NIC Affinity
A 2026 operator runbook for reading nvidia-smi topology, mapping ranks to GPU UUIDs, effective CPU and NUMA sets, selecting NICs, and validating placement with NCCL tests.
September 19, 2026• 20 min read
nvidia-smi topo rank bindinggpu cpu affinitygpu nic affinity
What Is a Good GPU Utilization Percentage? The 80% Target
A 2026 data-driven guide to good GPU utilization percentages, covering NVIDIA's 80% SM Activity benchmark, Cast AI's 5% enterprise average, Model FLOPs Utilization, and how to monitor and raise GPU utilization.
July 22, 2026• 42 min read
gpu utilizationgpu utilization percentagenvidia-smi