Jeff, What is the state of 'mpiext' with this patch? From glancing at the branch it doesn't look like it has been touched.
-- Josh On Thu, Apr 5, 2012 at 11:37 AM, Jeffrey Squyres <jsquy...@cisco.com> wrote: > WHAT: Revamp the entire MPI Fortran bindings; new "mpifort" wrapper compiler > > WHY: Much better mpi module implementation; addition of MPI-3 mpi_f08 module > > WHERE: Remove ompi/mpi/f77 and ompi/mpi/f90, replace with ompi/mpi/fortran > > TIMEOUT: Teleconf, Tue Apr 17, 2012 > > ==================================================== > > Highlights: > ----------- > > 1. New mpifort wrapper compiler: you can utilize mpif.h, use mpi, and use > mpi_f08 through this one wrapper compiler > 2. mpif77 and mpif90 still exist, but are sym links to mpifort and may be > removed in a future release > 3. The mpi module has been re-implemented and is significantly "mo' bettah" > 4. The mpi_f08 module offers many, many improvements over mpif.h and the mpi > module > > I will request an SVN "quiet time" to commit this stuff. It's coming from a > VERY long-lived mercurial branch (3 years! see below); it'll almost certainly > take a few SVN commits and a bunch of testing before I get it correctly > committed to the SVN trunk. > > More details: > ------------- > > Craig Rasmussen and I have been working with the MPI-3 Fortran WG and Fortran > J3 committees for a long, long time to make a prototype MPI-3 Fortran > bindings implementation. We think we're at a stable enough state to bring > this stuff back to the trunk, with the goal of including it in OMPI v1.7. > > Special thanks go out to everyone who has been incredibly patient and helpful > to us in this journey: > > - Rolf Rabenseifner/HLRS (mastermind/genius behind the entire MPI-3 Fortran > effort) > - The Fortran J3 committee > - Tobias Burnus/gfortran > - Tony Goetz/Absoft > - Terry Donte/Oracle > - ...and probably others whom I'm forgetting :-( > > There's still opportunities for optimization in the mpi_f08 implementation, > but by and large, it is as far along as it can be until Fortran compilers > start implementing the new F08 dimension(..) syntax. > > Note that gfortran is currently unsupported for the mpi_f08 module and the > new mpi module. gfortran users will a) fall back to the same mpi module > implementation that is in OMPI v1.5.x, and b) not get the new mpi_f08 module. > The gfortran maintainers are actively working hard to add the necessary > features to support both the new mpi_f08 module and the new mpi module > implementations. This will take some time. > > As mentioned above, ompi/mpi/f77 and ompi/mpi/f90 no longer exist. All the > fortran bindings implementations have been collated under ompi/mpi/fortran; > each implementation has its own subdirectory: > > ompi/mpi/fortran/ > base/ - glue code > mpif-h/ - what used to be ompi/mpi/f77 > use-mpi-tkr/ - what used to be ompi/mpi/f90 > use-mpi-ignore-tkr/ - new mpi module implementation > use-mpi-f08/ - new mpi_f08 module implementation > > There's also a prototype 6-function-MPI implementation under use-mpi-f08-desc > that emulates the new F08 dimension(..) syntax that isn't fully available in > Fortran compilers yet. We did that to prove it to ourselves that it could be > done once the compilers fully support it. This directory/implementation will > likely eventually replace the use-mpi-f08 version. > > Other things that were done: > > - ompi_info grew a few new output fields to describe what level of Fortran > support is included > > - Existing Fortran examples in examples/ were renamed; new mpi_f08 examples > were added > > - The old Fortran MPI libraries were renamed: > - libmpi_f77 -> libmpi_mpifh > - libmpi_f90 -> libmpi_usempi > > - The configury for Fortran was consolidated and significantly slimmed down. > Note that the F77 env variable is now IGNORED for configure; you should only > use FC. Example: > > ./configure CC=icc CXX=icpc FC=ifort ... > > - The https://bitbucket.org/jsquyres/mpi3-fortran branch has got to be one of > OMPI's longest-running branches. Its first commit was Tue Apr 07 23:01:46 > 2009 -0400 -- in 2 days, it'll be 3 years old. :-) We think we've pulled in > all relevant changes from the OMPI trunk (e.g., Fortran implementations of > the new MPI-3 MPROBE stuff for mpif.h, use mpi, and use mpi_f08, and the > recent Fujitsu Fortran patches). > > I anticipate some instability when we bring this stuff into the trunk, simply > because it touches a LOT of code in the MPI layer in the OMPI code base. > We'll try our best to make it as pain-free as possible, but please bear with > us when it is committed. > > Thanks! > > -- > 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 > http://www.open-mpi.org/mailman/listinfo.cgi/devel -- Joshua Hursey Postdoctoral Research Associate Oak Ridge National Laboratory http://users.nccs.gov/~jjhursey
