On Wed, Sep 13, 2006 at 07:50:02PM +0530, Sunil Patil wrote: > Hi, > > This is somewhat irrelevant question. It was said that in order delivery is > a feature of Mellanox HCA and not part of IB spec. Is this true for UD type > QPs also for which IB spec says that "in order delivery" is not guaranteed ? > UD is unreliable datagram, Nothing is guaranteed about it. The Mellanox HCA guarantees inorder delivery of RDMAed data.
> Regards > Sunil > > > > > On 9/13/06, Open MPI <b...@open-mpi.org> wrote: > > > >#366: OpenIB on IA64: we should disable small message RDMA > > > >-------------------------+-------------------------------------------------- > >Reporter: jsquyres | Owner: gleb > > Type: defect | Status: new > >Priority: major | Milestone: Open MPI 1.1.2 > >Version: trunk | Resolution: > >Keywords: openib, ia64 | > > > >-------------------------+-------------------------------------------------- > >Comment (by gleb): > > > >Actually in order delivery is a feature of Mellanox HCA and not part of > >the IB/iWarp spec.[[BR]] > >See [http://openib.org/pipermail/openib-general/2006-August/025305.html] > >for discussion about this. So use_eager_rdma flag is a good candidate to > >be put in mca-btl-openib-hca-params.ini file. > > > >-- > >Ticket URL: <http://svn.open-mpi.org/trac/ompi/ticket/366> > >Open MPI <http://www.open-mpi.org/> > > > >_______________________________________________ > >bugs mailing list > >b...@open-mpi.org > >http://www.open-mpi.org/mailman/listinfo.cgi/bugs > > > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel -- Gleb.
