1.数据并行DP(朴素数据并行,Zero数据并行之后补充) O ( h 2 ∗ l ) O(h^2*l) O(h2∗l) 每台机器做完自己的梯度后需要做一次All reduce操作来累积梯度,故一个batch计算发送的数据量为每层梯度大小 h 2 h^2 h2乘以层数 l l l
优点…
Description
You are given the head of a linked list. Delete the middle node, and return the head of the modified linked list.
The middle node of a linked list of size n is the ⌊n / 2⌋th node from the start using 0-based indexing, where ⌊x⌋ denotes th…