Sep 29, 2025 — 7 min — Platform & AI
PyTorch Training Throughput: The Patterns That Actually Move the Number
torch.compile, mixed precision, gradient accumulation, DDP vs FSDP, and the profiler — the five levers I reach for before rethinking the model architecture.
Outcome: Cut training wall-clock time and GPU memory pressure by applying compile, AMP, and accumulation patterns in sequence before ever touching model architecture.