[openib-general] SDP Protocol Issue Was: Configuration of sdp

[Sean Hubbell]

Eitan Zahavi wrote:
> Sean Hubbell wrote:
>> Ok, after futher inverstigation, here is what I have found:
>>
>> socket failed: Address family not supported by protocol
>>   
> Do yo u have sdp loaded. Please try:
> lsmod | grep ib_sdp
Yes.
>> I am assuming when sdp "exchanges" the AF_INET sockets to AF_SDP 
>> sockets that the current code that I am running has a issue or I 
>> don't know how to configure things...
>>
>> I have running libsdp v. 0.9.0 x86_64 as the rpm from downloaded from 
>> mirror.centos.org running kernel 2.6.9-42.0.3.plus.c4smp
>>
>>   
> I would recommend upgrading libsdp only to the one available from the 
> git tree at
> git clone git://staging.openfabrics.org/git/~eitan/libsdp.git
>
> or still fom SVN:
> https://openib.org/svn/gen2/trunk/src/userspace/libsdp
>
>> Also, my /etc/libsdp.conf file has the following:
>>
>> log min-level 1 destination syslog
>> #use both server * *:*
>> #use both client * *:*
>> use sdp client * 10.10.0.0/16:*
>> use sdp server * 10.10.0.0/16:*
>>
>> and seems to break all of my TCP connections, regardless if the 
>> interface is 10.10.* Is my configuration correct?
>>   
> The "both" would have been better in preserving TCP based services as 
> it falls back to use TCP if SDP does not work.
I tried that originally and received the same results (things did not 
fall back to using tcp), so I attempted to isolate this to my infiniband 
connection... I'll change it to both.

>> What would you recommend my next step to be? Upgrading my kernel as 
>> well as libsdp to the latest? Also, currently without using sdp I am 
>> getting 941 MBps, what do you get when you run using sdp, Karun 
>> mentioned that he is getting double the performance, which is where I 
>> am at; needing better performance from my apps?
>>   
> Depends on your apps. If you have many connections of large messages 
> SDP is a clear win.
Yes, so it looks like this would be a valid upgrade. I'll try the git tree.

Thanks Eitan,

Sean