Python Programming Learning Circle
Jul 23, 2021 · Artificial Intelligence
Understanding PyTorch's Backward Propagation Engine (BP Engine)
This article explains how PyTorch's BP Engine dynamically builds the computation graph for back‑propagation, detailing its C++ class structure, thread management, task queues, and key functions such as start_threads, compute_dependencies, execute, and evaluate_function, with illustrative code examples.
C++GraphTaskMultithreading
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