Hello,
In my understand, 2 spark cannot achive over 200GbE.
However, I found this and this and this lately.
I am not a people in hpc & network world so, I wonder those mean wether possible to achieve 400GbE by 2 QSFP cables connection.
Otherwise, mean that just all of 3 nodes which tied in ring topology are running on 200GbE?
Thank you for read.
You can’t get more than 200 Gbps out of Spark. Both ports share bandwidth with max 200G.
If so, will each 3 node connection be 200G?
not simultaneously, but both links to neighbor node will aggregate to 200G. So, if load is the same on both links, each will be pulling 100G.
Having said that, for inference purposes, bandwidth is less important than latency, and 100G is more than enough.
Became clear to me. Thank you!