Your training run died at epoch 47. The logs show nothing useful — just a silent hang and a CUDA out-of-memory error thr...

Your training run died at epoch 47. The logs show nothing useful — just a silent hang and a CUDA out-of-memory error three hours later. Meanwhile, your GPU has been sitting at 91°C for the last twenty minutes, quietly throttling itself into uselessness.If you're renting GPU time on a remote box, you need visibility into two numbers: utilization percentage and temperature in Celsius. This guide walks through monitoring both from the command line, building a lightweight dashboard, and automating alerts so you find out about problems before they cost you a day of compute.## Why Remote GPU Monitoring Is DifferentOn your local workstation, you can hear the fans spin up. On a remote server, you get nothing — no noise, no heat, no visual feedback. A GPU that's thermally throttling still reports "running" in your process list. It just runs at 40% speed.Thermal throttling is when a GPU reduces its clock speed to avoid damage from heat. Most data center GPUs (A100, H100, RTX 4090) start throttli...