InfiniBand

[shenjingGitHub]

hi everyone!When i use two Inifiniband cards,my CaffeOnSpark cannot work on rdma mode.Has anyone met the mistakes? thank you!

[junshi15]

You may get more specific help if you can elaborate your issues. If you have more than one infiniband card in a single box, one the first one will be used, due to this line. This can be easily modified, though.

[shenjingGitHub]

thank you!The problem has been solved!But i'm confused by another question. It costs nearly 580ms transferring 1Gb data by 2 mellanox connectx3's IB cards when i test on rdma.cpp.However the official says 40Gb/s can be reached.I wonder if there is any problem between the cards' connection.
Wish to get your answer.thank u~