mpich 1.2.7 "transition"
I'm getting ready to upload mpich 1.2.7 to unstable, which will include
a few significant changes:
* The mpich(-mpd) packages are deprecated in sarge, and removed
for etch (188.8.131.52-6 and beyond), so packages which depend on
them should change to mpich(-mpd)-bin.
* Additional ch_shmem transport for better performance on shared
memory machines than either ch_p4 or ch_p4mpd (was always in the
source, I'm packaging binaries now).
* libslog is *gone* so packages and binaries which link to it (and
which link to libmpe) will likely need to rebuild.
* Uses gfortran to provide Fortran 90 capability (yay!).
One issue: the gcc 4.0 transition which gives us gfortran also gives us
a new C++ ABI. There's one lib in mpich which is built using the C++
compiler, libpmpich++.so (linked from libmpi++.so). However, those libs
are not linked to libstdc++ (ldd doesn't show a dependency, and
dh_shlibdeps doesn't auto-generate a dependency on the new libstdc++
version. So, do the new shared lib packages need to be libmpich1.0c2
etc? I think so... Note that this will require that we all rebuild C++
executables and libs to link with the new libpmpich++.
Also, Zach Lowry is packaging mpich2 (and I'm doing a lame job of
mentoring him), in case anyone was wondering.
Just curious: what (if anything) is lam doing for the c2 ABI transition?
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