[openib-general] [ANNOUNCE] ContributeRDS(ReliableDatagramSockets) to OpenIB

[Bob Woodruff]

Catlin wrote, 
>> 
>> And if RDS were implemented over a connectionless QP, the QP 
>> savings are even more...
>> 
>> Procs per node   uDapl/Sdp Rds/connection oriented conectionless
>> 2                  19996            9999                1    
>> 4                  39984            9999                1
>> 
>> Of coarse, connectionless would require the reliability to be 
>> done in S/W in addition to the demuxing of packets. 
>> 
>> woody
>> 
>>

>It would also require the application to do SAR for all
>packets that are larger than the PMTU. One of the benefits
>of trying to ride on the SOCK_DGRAM interface is that it
>already defines a larger guaranteed message size.

I suppose the RDS driver could also handle the SAR (if it were needed)
in addition to any retries of lost packets. 

woody