Greetings! What say ye all to the below -- should I try to push 7.1 out with the same soname into Sarge ASAP?
Take care,
--- Begin Message ---On Sep 22, 2004, at 12:42 PM, Camm Maguire wrote: >> No. We never guarantee binary compatibility between LAM releases -- >> not even between 7.0.x releases. > > !!!!! I'm hoping that the content of this hinges on the word > 'guarantee'. There is a whole lot of software in Debian and > presumably other distributions which links against lam as a shared > library. Recompiling it all on 11 architectures will take weeks. > Needless to say, such actions should be kept to a minimum. Debian has > been building lam as a shared lib for sometime, before lam had such a > build option, and so came up with its own soname to define when binary > incompatible changes force a global recompile. Rightly or wrongly, we > did this at 6.3->6.5, and 6.5->7.0. I've been meaning to ask you if > your lam shared lib option uses a soname scheme in a similar fashion. > I haven't had time to look into it myself. We should, but don't. :-\ We were going to for 7.1, but got sidetracked on other issues. > In any case, I'd really hope that the soname wouldn't change with > every release, but maybe it does. 'Guarantees' aside, is it *known* > that binaries compiled against 7.0.6 will break against 7.1? Might we > have binary compatibility by good fortune with this particular > transition? We've actually *never* guaranteed binary compatibility between releases. We just don't have the time and resources do it, unfortunately. That being said, MPI applications *usually* will be ok with the upgrades unless we make major changes to: - mpi.h - the inlined C++ bindings - lam_config.h These are the only entry points for user applications that need to map correctly onto the back-end LAM libraries. I don't *think* that we changed enough in these files to cause a problem between 7.0.x and 7.1, but I know offhand for sure. You would have to try it to know. :-\ -- {+} Jeff Squyres {+} [EMAIL PROTECTED] {+} http://www.lam-mpi.org/ _______________________________________________ This list is archived at http://www.lam-mpi.org/MailArchives/lam/
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-- Camm Maguire [EMAIL PROTECTED] ========================================================================== "The earth is but one country, and mankind its citizens." -- Baha'u'llah
