https://blog.mbinf.de/Recent content on Tensor RayHugoen-usTue, 30 Jun 2026 00:00:00 +0000https://blog.mbinf.de/posts/agent-runs-my-gpu-cluster/Tue, 30 Jun 2026 00:00:00 +0000https://blog.mbinf.de/posts/agent-runs-my-gpu-cluster/<p>For three weeks an agent has been running my GPU cluster. It scales Blackwell cards up and down, picks nodes, and frees silicon when nobody is rendering.</p> <p>Not autonomous magic. It runs the loop I used to babysit by hand. Here is the honest version of what that taught me, with the parts LinkedIn was too short to hold.</p> <p><img src="https://blog.mbinf.de/images/story-a-hero.png" alt="A GPU rack orchestrated by an agent"></p> <h2 id="the-first-lesson-idle-gpus-that-are-still-blocked">The first lesson: idle GPUs that are still blocked</h2> <p>A render UI grabs a GPU the moment its process starts, not when you click &ldquo;render&rdquo;. <code>torch.cuda</code> takes the device on import. So an interface nobody is using still owns a card all day.</p>