Can we disable opensm? - Githubissues

fgci-org / fgci-ansible

:microscope: Collection of the Finnish Grid and Cloud Infrastructure Ansible playbooks

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Can we disable opensm? #174

Closed martbhell closed 7 years ago

martbhell commented 7 years ago

In the FGCI test cluster and at least a few other FGCI clusters an IB switch seems to be the subnetmanager - is there a reason to have opensm it also running on every node with rdma?

The ansible-role-rdma already supports disabling opensm - we just need to change the default variables

$ sminfo
sminfo: sm lid 394 sm guid 0x2cGUID, activity count 28713761 priority 0 state 3 SMINFO_MASTER
$ smpquery ND -L 394
Node Description:....MF0;ib-switch-mgmt:SX6036/U1

martbhell commented 7 years ago

Disabling on compute nodes since https://github.com/CSC-IT-Center-for-Science/fgci-ansible/commit/3b5f328077e9bec047cd3f0879e0512c6503d4ab