[ewg] Fwd: OpenSM for dual Rail

[Atul Yadav]

Dear Richard,

Thanks for sharing info...
yes i am interested in going through your steps... to achieve my goal.

Thanks
Atul yadav


On Sun, Jul 27, 2014 at 4:01 PM, Richard Croucher <
Richard.Croucher at informatix-sol.com> wrote:

>  Atul,
>
> I've had similar requirements where I had one low latency app and a
> cluster file system.
>
> Rather than lose the resiliency that two ports provide,  I used the QoS
> capabilities to differentiate the services provided to the applications,
> making one  higher priority than the other.  This way, the packets for my
> low latency application would never get queued behind any packets for the
> cluster file system.
>
> MPI has similar low latency requirements to maximize application
> throughput.
>
> I can provide the setup I used as an example, if you are interested.
>
> On 26/07/14 10:45, Atul Yadav wrote:
>
>  Dear Admin,
>
>  In our exiting setup we are having 18 server with dual IB cards.
> And 2 IB switch.
>
>  We are planning to use MPI traffic on IB Port1 and Lustre Traffic on IB
> port 2.
>
>      IB Port 1
>  Hostname
>  IB Port 2  IB Switch  1 IP Address Hostname IP Address IB Switch  2  Port
> 1 192.168.2.1 Compute-1 192.168.3.1 Port 1  Port 2 192.168.2.2 Compute-2
> 192.168.3.2 Port 2  Port 3 192.168.2.3 Compute-3 192.168.3.3 Port 3  Port
> 4 192.168.2.4 Compute-4 192.168.3.4 Port 4  Port 5 192.168.2.5 Compute-5
> 192.168.3.5 Port 5  Port 6 192.168.2.6 Compute-6 192.168.3.6 Port 6  Port
> 7 192.168.2.7 Compute-7 192.168.3.7 Port 7  Port 8 192.168.2.8 Compute-8
> 192.168.3.8 Port 8  Port 9 192.168.2.9 Compute-9 192.168.3.9 Port 9  Port
> 10 192.168.2.10 Compute-10 192.168.3.10 Port 10  Port 11 192.168.2.11
> Compute-11 192.168.3.11 Port 11  Port 12 192.168.2.12 Compute-12
> 192.168.3.12 Port 12  Port 13 192.168.2.13 Compute-13 192.168.3.13 Port 13  Port
> 14 192.168.2.14 Compute-14 192.168.3.14 Port 14  Port 15 192.168.2.15
> Compute-15 192.168.3.15 Port 15  Port 16 192.168.2.16 Compute-16
> 192.168.3.16 Port 16  Port 17 192.168.2.17 Compute-17 192.168.3.17 Port 17  Port
> 18 192.168.2.18 Compute-18 192.168.3.18 Port 18
>
>
>  need your help in opensm configuration and setup ....
>
>  Thank You
>  Atul Yadav
>
>
>
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