[Beowulf] How to know if infiniband network works?
joe.landman at gmail.com
Thu Aug 3 06:26:13 PDT 2017
On 08/03/2017 09:21 AM, Faraz Hussain wrote:
> I ran the qperf command between two compute nodes ( b4 and b5 ) and got:
> [hussaif1 at lustwzb5 ~]$ qperf lustwzb4 -t 30 rc_lat rc_bi_bw
> latency = 7.73 us
> bw = 9.06 GB/sec
> If I understand correctly, I would need to enable ipoib and then rerun
> test? It would then show ~40GB/sec I assume.
No. 9GB/s is about 80 Gb/s. Infiniband is working. Looks like you
might have dual-rail IB setup, or you were doing a bidirectional/full
e: joe.landman at gmail.com
More information about the Beowulf