Hello,
We have an Infiniband cluster in a fat tree configuration with 8 core
switches and
12 leaf switches. The compute nodes are all in enclosures connected to the 12
leaf switches. However, we have a number of non-compute nodes (admin,
login and storage nodes) that we have connected directly to the core
switches. Initially, we were getting credit-loop issues so we switched
from Min Hop to UPDN routing. However, now 90% of our IB traffic seems
to be routed through a single core switch. I have tried adding a root
guid file with the -a option, but that results in us getting this error:
Nov
28 16:47:19 319442 [45007960] 0x01 -> __osm_pr_rcv_get_path_parms:
ERR 1F07: Dead end on path to LID 0x6F from switch for GUID
0x00066a00d9000ac8
Nov 28 16:47:22 319469 [43C05960] 0x01 ->
__osm_pr_rcv_get_path_parms: ERR 1F07: Dead end on path to LID 0x6F
from switch for GUID 0x00066a00d9000ac8
Is there any way we can handle this hardware config via subnet management?
Thanks,
Reid O.
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