Not sure about the details either, but ppc64le support was only included in libtool recently (will be in the next release). I guess ppcle support is only becoming a reality now, and it wasn't widely usable in the past.
Brice Le 28/04/2014 17:17, George Bosilca a écrit : > I’m not sure how to interpret their claim. They say it has native support for > little endian, fact that was true for quite some time > (http://en.wikipedia.org/wiki/PowerPC#Endian_modes). Unfortunately, I could > not find any indication about the possible overhead of running little-endian > applications on a big-endian OS. > > George. > > > On Apr 28, 2014, at 10:09 , Atchley, Scott <atchle...@ornl.gov> wrote: > >> Hi George, >> >> The Power8 can run in little-endian mode without penalty: >> >> http://www.hpcwire.com/2014/04/23/power8-openpower-might-mean-hpc/ >> >> Not saying hetero support is unneeded, but this case may not be it. >> >> Scott >> >> On Apr 24, 2014, at 12:54 PM, George Bosilca <bosi...@icl.utk.edu> wrote: >> >>> There seems to be an opportunity to still have heterogeneous environment in >>> the future. >>> http://www.enterprisetech.com/2014/04/23/ibm-google-show-power8-systems-openpower-efforts/ >>> >>> I don’t think it is fair to shift the burden on the original developer >>> instead of the committer who broke a feature. >>> >>> George. >>> >>> On Apr 23, 2014, at 09:49 , Jeff Squyres (jsquyres) <jsquy...@cisco.com> >>> wrote: >>> >>>> WHAT: Remove data-heterogeneous support from Open MPI >>>> >>>> WHY: No one uses it (it's not the default), it's broken (probably has been >>>> for a while) >>>> >>>> WHERE: Datatype engine, some configury, and a few other places >>>> >>>> TIMEOUT: Tuesday teleconf, 6 May 2014 (i.e., 2 weeks from now) >>>> >>>> MORE DETAIL: >>>> >>>> It recently came to my attention that we seem to have some bit rot in the >>>> heterogeneous data representation support such that if you configure with >>>> --enable-heterogeneous, even if you run on homogeneous machines, you can >>>> get segv's with tcp,sm,self. >>>> >>>> The heterogeneous support has never been enabled by default. AFAIK, only >>>> Cisco tests it regularly in its MTT. I'm be greatly surprised if many >>>> (any?) users use it at all. >>>> >>>> So I have to ask myself: why do we keep this functionality around? It >>>> seems like we should delete this code, simplify things a little, and move >>>> on. >>>> >>>> Comments? >>>> >>>> -- >>>> 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: http://www.open-mpi.org/mailman/listinfo.cgi/devel >>>> Link to this post: >>>> http://www.open-mpi.org/community/lists/devel/2014/04/14584.php >>> _______________________________________________ >>> devel mailing list >>> de...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >>> Link to this post: >>> http://www.open-mpi.org/community/lists/devel/2014/04/14594.php >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >> Link to this post: >> http://www.open-mpi.org/community/lists/devel/2014/04/14627.php > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2014/04/14631.php
