AI 导读
在芯片数量固定的情况下，网络直径会缩小。对于 4,096 芯片的集群，最坏情况在 16×16×16 3D Torus 下是 24 跳，而在 4⁶ 6D Torus 下只需 12 跳。这还不是唯一的好处，因为二分带宽也会成倍增加。然而，这一切的代价是需要多得多的光模块和 OCS 容量。(7/8)
正文
For a fixed chip count the diameter collapses. For a 4,096 chip cluster, the worst-case is 24 hops with a 16×16×16 3D torus, but 12 hops with a 4⁶ 6D Torus. This is not the onlye benefit as bisection bandwidth multiplies. However, this all comes at the cost of far more optics and OCS capacity. (7/8)
来源：@SemiAnalysis_ · x.com