d7eaca83fa
What started as a simple ticket ended up reaching the way up to the
MPI Forum.
It turns out that we are supposed to have MPI_SIZEOF for all Fortran
interfaces: mpif.h, the mpi module, and the mpi_f08 module.
It further turns out that to properly support MPI_SIZEOF, your Fortran
compiler *has* support the INTERFACE keyword and ISO_FORTRAN_ENV. We
can't use "ignore TKR" functionality, because the whole point of
MPI_SIZEOF is that the implementation knows what type was passed to it
("ignore TKR" functionality, by definition, throws that information
away). Hence, we have to have an MPI_SIZEOF interface+implementation
for all intrinsic types, kinds, and ranks.
This commit therefore adds a perl script that generates both the
interfaces and implementations for MPI_SIZEOF in each of mpif.h, the
mpi module, and mpi_f08 module (yay consolidation!).
The perl script uses the results of some new configure tests:
* check if the Fortran compiler supports the INTERFACE keyword
* check if the Fortran compiler supports ISO_FORTRAN_ENV
* find the max array rank (i.e., dimension) that the compiler supports
If the Fortran compiler supports both INTERFACE and ISO_FORTRAN_ENV,
then we'll build the MPI_SIZEOF interfaces. If not, we'll skip
MPI_SIZEOF in mpif.h and the mpi module. Note that we won't build the
mpi_f08 module -- to include the MPI_SIZEOF interfaces -- if the
Fortran compiler doesn't support INTERFACE, ISO_FORTRAN_ENV, and a
whole bunch of ther modern Fortran stuff.
Since MPI_SIZEOF interfaces are now generated by the perl script, this
commit also removes all the old MPI_SIZEOF implementations (which were
laden with a zillion #if blocks).
cmr=v1.8.3
This commit was SVN r32764.
62 строки
2.7 KiB
Fortran
62 строки
2.7 KiB
Fortran
! -*- fortran -*-
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!
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! Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
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! University Research and Technology
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! Corporation. All rights reserved.
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! Copyright (c) 2004-2005 The University of Tennessee and The University
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! of Tennessee Research Foundation. All rights
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! reserved.
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! Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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! University of Stuttgart. All rights reserved.
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! Copyright (c) 2004-2005 The Regents of the University of California.
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! All rights reserved.
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! Copyright (c) 2006-2014 Cisco Systems, Inc. All rights reserved.
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! $COPYRIGHT$
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!
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! Additional copyrights may follow
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!
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! $HEADER$
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!
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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! WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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!
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! Do ***not*** copy this file to the directory where your Fortran
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! fortran application is compiled unless it is absolutely necessary! Most
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! modern Fortran compilers now support the -I command line flag, which
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! tells the compiler where to find .h files (specifically, this one). For
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! example:
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!
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! shell$ mpifort foo.f -o foo -I$OMPI_HOME/include
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!
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! will probably do the trick (assuming that you have set OMPI_HOME
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! properly).
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!
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! That being said, OMPI's "mpifort" wrapper compiler should
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! automatically include the -I option for you. The following command
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! should be equivalent to the command listed above:
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!
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! shell$ mpifort foo.f -o foo
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!
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! You should not copy this file to your local directory because it is
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! possible that this file will be changed between versions of Open MPI.
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! Indeed, this mpif.h is incompatible with the mpif.f of other
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! implementations of MPI. Using this mpif.h with other implementations
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! of MPI, or with other versions of Open MPI will result in undefined
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! behavior (to include incorrect results, segmentation faults,
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! unexplainable "hanging" in your application, etc.). Always use the
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! -I command line option instead (or let mpifort do it for you).
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!
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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! WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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include 'mpif-config.h'
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include 'mpif-constants.h'
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include 'mpif-handles.h'
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@OMPI_MPIF_IO_CONSTANTS_INCLUDE@
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@OMPI_MPIF_IO_HANDLES_INCLUDE@
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include 'mpif-externals.h'
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include 'mpif-sentinels.h'
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include 'mpif-sizeof.h'
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