On Wed, Jun 10, 2009 at 4:07 PM, Zafar Gilani<[email protected]> wrote: > I read a paper on "Zero Copy Sockets Direct Protocol over InfiniBand". I had > a few questions, if anybody could answer I will be thankful. > > 1. SDP BCopy approach can be used without the change of the code via the use > of AF_INET_SDP parameter when calling socket() system call. But how can I > implement SDP ZCopy approach if I want to implement ZCopy_Read and > ZCopy_Write methods? > > 2. Is there any documentation regarding how to implement SDP ZCopy? Any > Hello World sort of example code that I can use to learn how to work with > this? > > 3. SDP BCopy is better for smaller messages, but how small? Is 64K a good > threshold to change from BCopy to ZCopy at 128K?
May I ask you why you are looking at SDP ? The performance of IPoIB in connected mode and with large MTU is close to that of SDP, while the former is a lot easier to use than the latter. Bart. _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
