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Re: Connection between two infiniband ports
hpc_ed Apr 5, 2018 7:40 AM (in response to shilpac)1 of 1 people found this helpful(Assuming you have 2 subnet managers running on these looped back ports) you could use /sbin/ibtracert to see the connection paths. Though just dumping the ibnetdiscover/ibdiagnet for each _port_ should be pretty self explanatory.
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Re: Connection between two infiniband ports
shilpac Apr 10, 2018 11:43 PM (in response to hpc_ed)Appreciate your reply. I went and tried running ibtracert and it works.
Regarding subnet manager: For infiniband 2 port devices I believe only 1 subnet manager will be running. Does ibtracert work on infiniband 2 port devices as only 1 subnet manager will be running ?
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Re: Connection between two infiniband ports
halr Apr 12, 2018 6:22 AM (in response to shilpac)IBA architecture has (at least one) subnet manager per subnet. In the case of back to back CAs (without switches), each back to back connection is separate subnet. You can run multiple instances of SM on same machine but it needs proper configuration.
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Re: Connection between two infiniband ports
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