Ensure to define ompi/pompi versions for platforms that don't have
weak symbols. Also make fortran/mpif-h/profile build a separate
sizeof library, just like fortran/mpifh-h does.
Per http://www.open-mpi.org/community/lists/devel/2015/08/17775.php,
some compilers don't like it when there's a .f90 file that only
contains comments (and no actual Fortran code). So if OMPI determines
that the Fortran compiler does not support enough Fortran mojo to
support MPI_SIZEOF, generate at least one dummy Fortran subroutine
that can be compiled in an otherwise barren Fortran landscape that is
devoid of life and hope.
Fortran uses objects (ompi_f08_mpi_comm_world, mpi_fortran_bottom,, ...) that are defined in C.
Some compilers have different requirements on how these objects should be aligned.
Smaller alignment in C can lead to several confusing warnings from the linker, so try to
find the alignment expected by Fortran compiler, and inform the C compiler.
The libmpi_*.la fortran libraries make some direct calls to
libopen-pal.la. In many (most?) cases, having libmpi_* link
against libmpi is sufficient (because libmpi pulls in libopen-pal).
But when building RPMs on SLES, some compiler/linker flags are used
that seem to make this implicit linking not sufficient -- we get
missing opal symbols when creating libmpi_mpifh.la. So link in
open-pal directly (vs. indirectly), which solves the problem.
only define the unique fortran symbol depending on
- CAPS
- PLAIN
- SINGLE_UNDERSCORE
- DOUBLE_UNDERSCORE
and bind the f08 symbol to the uniquely defined C symbol.
Use real data structures to make the code simpler.
(perl script written by Jeff)
@ggouaillardet was right -- we should have put the
ompi_buffer_detach_f08() function in the use-mpi-f08 directory to
begin with. Putting it in the mpif-h directory made it complicated as
to whether the function would be built or not (e.g., whether weak
symbols were supported or not, whether the profiling layer was
disabled or not, ...etc.).
Just put it in the use-mpi-f08 directory and always build it (when the
mpi_f08 module is built, of course), and keep it simple.
Since there is no profiling version of the f08 buffer_detach function
(or, more specifically, the Fortran compile does the name mangling of
MPI and PMPI to the back-end C function for us), ensure that it is
only compiled once.
Also, per Gilles' observation, the f08-related #pragmas are no longer
relevant.
Add an mpi_f08-specific implementation for MPI_BUFFER_DETACH.
Per MPI-3.1:3.6, p45, the buffer argument is ignored in
MPI_BUFFER_DETACH for mpif.h and the mpi module. But in the mpi_f08
module, the buffer argument is treated like it is in the C binding.
This commit adds support for MPI_Aint_add and MPI_Aint_diff. These
functions are implemented as macros in C (explicitly allowed by
MPI-3.1). The fortran implementations are a similar mess to the
MPI_Wtime implementations.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
This is the master version of @ggouaillardet's patch from
open-mpi/ompi-release#148 (there was a minor conflict to fix and
several fuzzings of line numbers).
