> What about RoCE? Is this something that is commonly used (I would guess > no since I have not found much)? Are there other protocols that are > worth considering (like "gamma" which doesn't seem to be developed > anymore)?
Gamma has not been around for years. There was open-mx http://open-mx.gforge.inria.fr/ But, the project stopped in 2012. I think the main reason it stopped was that IB is the choice of most clusters and most 10G nics provide low latency with default tcp/ip (less than 10us in most cases). -- Doug > > My impression is that with RoCE you have to use specialized hardware > (unlike gamma - where one could use standard hardware, and still get a > noticeable improvement in latency)? > > Thoughts? > > /jon > > On 09/21/2017 04:09 AM, Christopher Samuel wrote: >>> Thanks Peter for the high level overview! A few followup questions. >>> What >>> if I am using a non-Infiniband cluster, i.e something with 10gigE. Or >>> even slower like at my home I have a raspbery pi cluster with 100 Mbps >>> ethernet. Is ofed/psm/verbs all irrelevant? >> Pretty much, yes, unless you've got fancy switches that can do RoCE. >> > > > -- > MailScanner: Clean > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf > -- Doug -- MailScanner: Clean _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
