Hi there!
I have a customer who wants to use a new generation of systems based on HGX H100 with previous generation of IB network - HDR200, because he has already bought network equipment.
Perhaps someone can tell me which network adapters are better to use in this case? (with the possibility of transition to 400 NDR IB network equipment in the future)
HDR 200 IB switches has QSFP56 ports
Single port ConnectX-7 supports only OSFP (incompatible with QSFP56)
Dual port ConnectX-7 supports QSFP112, but I have doubts how many adapters to use:
- 8 - 1 per each SXM GPU H100
- 4 - 1 per each 2 SXM GPU H100 (because its dual port adapter, but I have doubts that it has the necessary bandwidth for 2 GPU)
Or better will be use ConnectX-6 for HDR with H100
NVIDIA ConnectX-7 Adapter Cards User Manual
https://docs.nvidia.com/networking/display/ConnectX7VPI/NVIDIA+ConnectX-7+Adapter+Cards+User+Manual