Exactly on the nail! Thanks Ralph. I've seen several comments about patches needing to be ported from 2.x to 1.x. That will definitely be transparent to users (apologize if I diverged the email intention), but maybe few others will be grateful to read that wiki entry.
Thanks! _MAC -----Original Message----- From: devel [mailto:devel-boun...@open-mpi.org] On Behalf Of Ralph Castain Sent: Friday, April 29, 2016 10:56 AM To: Open MPI Developers <de...@open-mpi.org> Subject: Re: [OMPI devel] 2.0.0 is coming: what do we need to communicate to users? FWIW: I think Matias has a good point, though perhaps it belongs on a wiki page. When we moved the BTLs down to OPAL, for example, it doesn’t impact users, but would be worth ensuring developer’s and ISVs had a convenient place to see what changed. > On Apr 29, 2016, at 10:47 AM, Jeff Squyres (jsquyres) <jsquy...@cisco.com> > wrote: > > Matias -- > > You're probably already in pretty good shape. If you're following master and > the v2.x branch (and you are), then your code is already in good shape. > > I was thinking mostly for users: transitioning from v1.8/v1.10 series to the > v2.x series -- what kinds of user-noticeable things will they see? > > >> On Apr 29, 2016, at 12:34 PM, Cabral, Matias A <matias.a.cab...@intel.com> >> wrote: >> >> How about for “developers that have not been following the transition from >> 1.x to 2.0? Particularly myself J. I started contributing to some specific >> parts (psm2 mtl) and following changes. However, I don’t have details of >> what is changing in 2.0. I see there could be different level of details in >> the “developer’s transition guide book”, ranging from architectural change >> to what pieces were moved where. >> >> Thanks, >> >> _MAC >> >> From: devel [mailto:devel-boun...@open-mpi.org] On Behalf Of Joshua Ladd >> Sent: Friday, April 29, 2016 7:11 AM >> To: Open MPI Developers <de...@open-mpi.org> >> Subject: Re: [OMPI devel] 2.0.0 is coming: what do we need to communicate to >> users? >> >> Certainly we need to communicate / advertise / evangelize the improvements >> in job launch - the largest and most substantial change between the two >> branches - and provide some best practice guidelines for usage (use direct >> modex for applications with sparse communication patterns and full modex for >> dense.) I would be happy to contribute some paragraphs. >> >> Obviously, we also need to communicate, reiterate the need to recompile >> codes built against the 1.10 series. >> >> Best, >> >> Josh >> >> >> >> On Thursday, April 28, 2016, Jeff Squyres (jsquyres) <jsquy...@cisco.com> >> wrote: >> We're getting darn close to v2.0.0. >> >> What "gotchas" do we need to communicate to users? I.e., what will people >> upgrading from v1.8.x/v1.10.x be surprised by? >> >> The most obvious one I can think of is mpirun requiring -np when slots are >> not specified somehow. >> >> What else do we need to communicate? It would be nice to avoid the >> confusion users experienced regarding affinity functionality/options when >> upgrading from v1.6 -> v1.8 (because we didn't communicate these changes >> well, IMHO). >> >> -- >> Jeff Squyres >> jsquy...@cisco.com >> For corporate legal information go to: >> http://www.cisco.com/web/about/doing_business/legal/cri/ >> >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org >> Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/devel >> Link to this post: >> http://www.open-mpi.org/community/lists/devel/2016/04/18832.php >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org >> Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/devel >> Link to this post: >> http://www.open-mpi.org/community/lists/devel/2016/04/18843.php > > > -- > Jeff Squyres > jsquy...@cisco.com > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/ > > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2016/04/18845.php _______________________________________________ devel mailing list de...@open-mpi.org Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/devel Link to this post: http://www.open-mpi.org/community/lists/devel/2016/04/18847.php
