On Thu, Nov 26, 2009 at 10:35 PM, Chuck Ritter <cfr100@psu.edu> wrote:

On Thu, Nov 26, 2009 at 6:30 AM, Vivek Satpute <vivekonline86@gmail.com> wrote:
> Hi Ritter,

>
>> > And why those examples in libibverbs-1.1.2 package takes IP address ?
>> > Do you have any idea about that ?
>>
>> Why not?
>>
>> I think hostnames and ips were used because they uniquely identify a
>> node. Why create a parallel naming scheme? It just adds more data to
>> track.
>>
> I agree with this that why there should be parallel naming scheme. But
> Infiniband devices already have LID and GID naming system to identify
> devices
> So instead of using IP address to uniquely identify, we can use those
> LID/GID.
> Am I right ?

That would have been another possibility.

You could say the same about the SCSI bus. LUN and bus information is
mapped to an abstract device so that the user does not have to deal
with those low level details. In the case of SCSI, the OS handles
that... maps it into devices. I think IB somewhat follows that model.

Yope. Maybe you are right.

C