tensor parallelism

TP=2, 4, or 8, the answer is a memory budget, a latency target, and one rule: smallest TP that fits, scale with replicas. The worked arithmetic that turns this from vibes into a defensible call.

Do the weight math first, then choose your poison: shrink the weights, split them across GPUs, or spill to host memory. Each buys you the fit at a different cost, and one of them is almost always wrong for production.