DeepSeek Elastic Compute (DSec)

DeepSeek Elastic Compute (DSec) unifies FnCall, container, microVM, and full-VM backends via a single SDK. It manages placement, lifecycle, and resources across a 160-node cluster, handling 3 million sandboxes daily, 380,000 concurrently, and 5,000 creations per second. Images load on demand from the Fire-Flyer File System. DSec separates stateful rollout execution from preemptible GPU training, preserving rollout state and reducing image-distribution overhead, which improves memory efficiency and latency under high-density overcommit.