Hello,
I am working with three GPU nodes where Node1 and Node2 each have two network interfaces (ib0 and eth0), while Node3 only has eth0. Each node is managed by a single process. When using NCCL to create multiple communicators, could you kindly advise on how to explicitly specify that communication between Node1 and Node2 should utilize ib0, while communication between Node1, Node2, and Node3 should use eth0?
Thank you in advance for your assistance!