253444c6d0
1. New mpifort wrapper compiler: you can utilize mpif.h, use mpi, and use mpi_f08 through this one wrapper compiler
1. mpif77 and mpif90 still exist, but are sym links to mpifort and may be removed in a future release
1. The mpi module has been re-implemented and is significantly "mo' bettah"
1. The mpi_f08 module offers many, many improvements over mpif.h and the mpi module
This stuff is coming from a VERY long-lived mercurial branch (3 years!); 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:
{{{
shell$ ./configure CC=icc CXX=icpc FC=ifort ...
}}}
All of this work was done in a Mercurial branch off the SVN trunk, and hosted at Bitbucket. This branch has got to be one of OMPI's longest-running branches. Its first commit was Tue Apr 07 23:01:46 2009 -0400 -- it's over 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.
This commit was SVN r26283.
85 строки
3.0 KiB
C
85 строки
3.0 KiB
C
/*
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* Copyright (c) 2004-2005 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) 2004-2006 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) 2004-2007 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) 2007-2012 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2008-2009 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2009 Oak Ridge National Labs. 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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#ifndef USE_MPI_F08_CONSTANTS_H
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#define USE_MPI_F08_CONSTANTS_H
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/*
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* This file contains macro definitions for parameter values used in the
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* MPI_F08 Fortran bindings. The values are the same as those in
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* ompi/include/mpif-common.h and are generated by the script
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* TODO FIXME ompi/xxx/mpif-common.pl.
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*/
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#define OMPI_MPI_COMM_WORLD 0
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#define OMPI_MPI_COMM_SELF 1
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#define OMPI_MPI_GROUP_EMPTY 1
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#define OMPI_MPI_ERRORS_ARE_FATAL 1
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#define OMPI_MPI_ERRORS_RETURN 2
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/*
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* NULL 'handles' (indices)
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*/
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#define OMPI_MPI_GROUP_NULL 0
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#define OMPI_MPI_COMM_NULL 2
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#define OMPI_MPI_DATATYPE_NULL 0
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#define OMPI_MPI_REQUEST_NULL 0
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#define OMPI_MPI_OP_NULL 0
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#define OMPI_MPI_ERRHANDLER_NULL 0
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#define OMPI_MPI_INFO_NULL 0
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#define OMPI_MPI_WIN_NULL 0
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#define OMPI_MPI_BYTE 1
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#define OMPI_MPI_PACKED 2
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#define OMPI_MPI_UB 3
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#define OMPI_MPI_LB 4
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#define OMPI_MPI_CHARACTER 5
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#define OMPI_MPI_LOGICAL 6
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#define OMPI_MPI_INTEGER 7
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#define OMPI_MPI_INTEGER1 8
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#define OMPI_MPI_INTEGER2 9
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#define OMPI_MPI_INTEGER4 10
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#define OMPI_MPI_INTEGER8 11
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#define OMPI_MPI_INTEGER16 12
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#define OMPI_MPI_REAL 13
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#define OMPI_MPI_REAL4 14
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#define OMPI_MPI_REAL8 15
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#define OMPI_MPI_REAL16 16
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#define OMPI_MPI_DOUBLE_PRECISION 17
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#define OMPI_MPI_COMPLEX 18
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#define OMPI_MPI_COMPLEX8 19
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#define OMPI_MPI_COMPLEX16 20
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#define OMPI_MPI_COMPLEX32 21
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#define OMPI_MPI_DOUBLE_COMPLEX 22
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#define OMPI_MPI_2REAL 23
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#define OMPI_MPI_2DOUBLE_PRECISION 24
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#define OMPI_MPI_2INTEGER 25
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#define OMPI_MPI_2COMPLEX 26
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#define OMPI_MPI_2DOUBLE_COMPLEX 27
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#define OMPI_MPI_REAL2 28
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#define OMPI_MPI_LOGICAL1 29
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#define OMPI_MPI_LOGICAL2 30
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#define OMPI_MPI_LOGICAL4 31
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#define OMPI_MPI_LOGICAL8 32
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#endif /* USE_MPI_F08_CONSTANTS_H */
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