問題文
In a training cluster, the traffic between accelerators during a job is very different from the traffic a web service would generate. What characteristic of that traffic most shapes how the fabric for it is designed?
選択肢
- It is entirely contained within each server, so the fabric between servers carries only the job's input data and the design can treat it as a background flow.
- It is synchronized across many endpoints at once, so the slowest path determines when the whole step can finish.
- It flows mostly in one direction, from the storage tier toward the accelerators, so the design concentrates on the capacity of the links that face the storage system rather than on the links between servers.
- It is dominated by short requests from many independent clients, so the fabric is designed around the number of connections that can be tracked at once rather than around the bandwidth of any single path.