UEC++ From Basics to Advanced | M18-007: Diagram of Large-Scale Async Task Composition

This video uses diagrams to explain how to scale the Control Flows pattern to large numbers of concurrent tasks. We visualize flow graphs with multiple sequential and parallel segments, showing how complex async workflows map to the node graph. The key insight is that flows can be nested: a single node in a parent flow can itself be a sub-flow containing many nodes. This recursive composition enables arbitrary complexity while keeping each individual flow simple. We demonstrate a three-phase loading flow where each phase has parallel sub-tasks. The video covers the flow visualization approach: logging each node execution with timestamps, tracking the active node count, and using the engine's profiling tools to verify that parallel tasks actually run on different threads.