From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: Status of "ummunot" branch? Date: Fri, 14 Jun 2013 17:11:17 -0600 Message-ID: <20130614231117.GA21525@obsidianresearch.com> References: <20130605190529.GA3044@obsidianresearch.com> <51B023B9.9050000@mellanox.com> <20130607235731.GA25942@obsidianresearch.com> <20130610172627.GC2391@obsidianresearch.com> <20130612214708.GD8625@obsidianresearch.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Jeff Squyres (jsquyres)" Cc: Haggai Eran , Or Gerlitz , "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Shachar Raindel List-Id: linux-rdma@vger.kernel.org On Fri, Jun 14, 2013 at 10:53:24PM +0000, Jeff Squyres (jsquyres) wrote: > On Jun 12, 2013, at 5:47 PM, Jason Gunthorpe wrote: > > > Someone has to finish the ummunotify rewrite Roland > > started. Realistically MPI is going to be the only user, can someone > > from the MPI world do this? > > 1. I tried to ask what needed to be done at the beginning of this > thread and didn't get much of an answer. AFAIK, only Roland knows the state of his rewrite, hopefully he will comment.. I told you everything I know about what happened with the last attempt :| > 2. We've (all) been asking for this functionality *for years*; I > even helped with the first implementation. Can't the verbs > community finish it? :-) MPI is probably your biggest customer, > after all... There isn't much of a verbs community, to be honest. Unless you can get a vendor to commit resources to the project, I wouldn't expect much. > I have no doubt that ODP solves problems for someone. It just > doesn't seem to solve the very-long-standing MPI issues with verbs > and registration caches. As we've discussed it helps write a registration cache. The 'All of address space' varient that Haggai mentioned should also be very interesting. But this is all future stuff. FWIW, I agree with you that ummunot is something MPI really needs to function. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html