I have a QDR ib switch that should support up to 40Gbps. After installing
the kernel-ib and lustre client rpms on my SuSe nodes I see the following:
hpc102:~ # ibstatus mlx4_0:1
Infiniband device 'mlx4_0' port 1 status:
default gid: fe80:0000:0000:0000:0002:c903:0006:de19
base lid: 0x7
sm lid: 0x1
state: 4: ACTIVE
phys state: 5: LinkUp
rate: 20 Gb/sec (4X DDR)
Why is this only picking up 4X DDR at 20Gb/sec? Do the lustre rpm's not
support QDR? Is there something that I need to do on my side to force
40Gb/sec on these ports?
Thanks in advance,
-J
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