On 7/26/2014 7:57 AM, Hal Rosenstock wrote:
> Hi Atul,
> 
> On 7/26/2014 5:45 AM, 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 ....
> 
> You need an SM per subnet. They should be setup to have different subnet
> prefixes.
> 
> Do you plan on running OpenSM for each subnet on the same or different
> machines ?
> 
> It's a little simpler if it's different machines.
> 
> If it's on same machine, basically you need 2 options files (one for
> each subnet/OpenSM) and make the output (/var/log and /var/cache/opensm
> folders) go to separate files/directories. You can do that with the
> various config options.
> 
> Also, see:
> https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg03559.html
> 
> I don't see OSM_LOG_DIR in recent OpenSMs but there is log_prefix option.

Here's the general process I'd follow for running 2 OpenSM instances (on
2 different ports) on same machine:

Generate opensm conf file for your OpenSM via opensm -c
Make two copies opensm-rail1.conf opensm-rail2.conf
edit these as follows:
change port to port GUID for this SM
change at least 1 subnet_prefix (must be different)
change log_file and dump_files_dir to be unique

set OSM_CACHE_DIR environment variable for one of the OpenSM instances

-- Hal

> -- Hal
> 
>> Thank You
>> Atul Yadav
>>
>>
>>
>> _______________________________________________
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>> http://lists.openfabrics.org/mailman/listinfo/ewg
> 

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