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Rainer Keller
1b8d0cf146 - AC_TRY_RUN does not work in case of cross-compilation environments.
Tests based on preprocessor CPP output, won't help either, as they
   don't spit out nice computed numerical values, but rather the
   #define itselve.

This commit was SVN r21364.
2009-06-04 13:00:16 +00:00
Rainer Keller
9ef87898e0 (originally, did not want to do this during business hours, but
well..)
 - As Jeff suggested, for m4 macros, dont use _ OPAL, but
   rather OPAL_ prefix
 - Set the variable before AC_SUBST, so that replacement happens
   in f77 header-file, too.

This commit was SVN r21316.
2009-05-28 20:28:43 +00:00
Rainer Keller
916eb1fb1e - As proposed in RFC and telcon, warn the user about deprecated
functionality (per MPI-2.1). This warning can be toggled using
   --enable-mpi-interface-warning (default OFF), but can be
   selectively turned on passing
       mpicc -DOMPI_WANT_MPI_INTERFACE_WARNING

   Using icc, gcc < 4.5, warnings (such as in mpi2basic_tests) show:
     type_vector.c:83: warning: ‘MPI_Type_hvector’ is deprecated
     (declared at /home/../usr/include/mpi.h:1379)

   Using gcc-4.5 (gcc-svn) these show up as:
     type_vector.c:83: warning: ‘MPI_Type_hvector’ is deprecated
     (declared at /home/../usr/include/mpi.h:1379):
     MPI_Type_hvector is superseded by MPI_Type_create_hvector in MPI-2.0


   Jeff and I propose to turn such warnings on with Open MPI-1.7 by default.


 - Detection of user-level compiler is handled using the preprocessor
   checks of GASnet's other/portable_platform.h (thanks to Paul Hargrove
   and Dan Bonachea) adapted into ompi/include/mpi_portable_platform.h
   (see comments).

   The OMPI-build time detection is output (Familyname and Version)
   with ompi_info.

   This functionality (actually any upcoming __attribute__) are turned
   off, if a different compiler (and version) is being detected.


 - Note, that any warnings regarding (user-compiler!=build-compiler)
   as discussed in the RFC are _not_ included for now.


 - Tested on Linux with --enable-mpi-interface-warning on
   Linux, gcc-4.5 (deprecated w/ specific msg)
   Linux, gcc-4.3 (deprecated w/o specific msg)
   Linux, pathscale 3.1 (deprecated w/o specific msg)
   Linux, icc-11.0 (deprecated w/o specific msg)

   Linux, PGI-8.0.6 accepts __deprecated__ but does not issue a warning,
   further investigation needed...

This commit was SVN r21262.
2009-05-22 04:39:43 +00:00