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.
65 строки
3.4 KiB
C
65 строки
3.4 KiB
C
/*
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* Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
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*
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* This file provides symbols for the derived type values needed
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* in mpi3_types.f90.
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*/
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#include "ompi_config.h"
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#include "constants.h"
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OMPI_DECLSPEC int ompi_f08_mpi_comm_world = OMPI_MPI_COMM_WORLD;
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OMPI_DECLSPEC int ompi_f08_mpi_comm_self = OMPI_MPI_COMM_SELF;
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OMPI_DECLSPEC int ompi_f08_mpi_group_empty = OMPI_MPI_GROUP_EMPTY;
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OMPI_DECLSPEC int ompi_f08_mpi_errors_are_fatal = OMPI_MPI_ERRORS_ARE_FATAL;
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OMPI_DECLSPEC int ompi_f08_mpi_errors_return = OMPI_MPI_ERRORS_RETURN;
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/*
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* NULL "handles" (indices)
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*/
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OMPI_DECLSPEC int ompi_f08_mpi_group_null = OMPI_MPI_GROUP_NULL;
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OMPI_DECLSPEC int ompi_f08_mpi_comm_null = OMPI_MPI_COMM_NULL;
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OMPI_DECLSPEC int ompi_f08_mpi_datatype_null = OMPI_MPI_DATATYPE_NULL;
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OMPI_DECLSPEC int ompi_f08_mpi_request_null = OMPI_MPI_REQUEST_NULL;
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OMPI_DECLSPEC int ompi_f08_mpi_op_null = OMPI_MPI_OP_NULL;
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OMPI_DECLSPEC int ompi_f08_mpi_errhandler_null = OMPI_MPI_ERRHANDLER_NULL;
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OMPI_DECLSPEC int ompi_f08_mpi_info_null = OMPI_MPI_INFO_NULL;
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OMPI_DECLSPEC int ompi_f08_mpi_win_null = OMPI_MPI_WIN_NULL;
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/*
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* common block items from ompi/include/mpif-common.h
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*/
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OMPI_DECLSPEC int ompi_f08_mpi_byte = OMPI_MPI_BYTE;
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OMPI_DECLSPEC int ompi_f08_mpi_packed = OMPI_MPI_PACKED;
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OMPI_DECLSPEC int ompi_f08_mpi_ub = OMPI_MPI_UB;
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OMPI_DECLSPEC int ompi_f08_mpi_lb = OMPI_MPI_LB;
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OMPI_DECLSPEC int ompi_f08_mpi_character = OMPI_MPI_CHARACTER;
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OMPI_DECLSPEC int ompi_f08_mpi_logical = OMPI_MPI_LOGICAL;
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OMPI_DECLSPEC int ompi_f08_mpi_integer = OMPI_MPI_INTEGER;
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OMPI_DECLSPEC int ompi_f08_mpi_integer1 = OMPI_MPI_INTEGER1;
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OMPI_DECLSPEC int ompi_f08_mpi_integer2 = OMPI_MPI_INTEGER2;
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OMPI_DECLSPEC int ompi_f08_mpi_integer4 = OMPI_MPI_INTEGER4;
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OMPI_DECLSPEC int ompi_f08_mpi_integer8 = OMPI_MPI_INTEGER8;
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OMPI_DECLSPEC int ompi_f08_mpi_integer16 = OMPI_MPI_INTEGER16;
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OMPI_DECLSPEC int ompi_f08_mpi_real = OMPI_MPI_REAL;
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OMPI_DECLSPEC int ompi_f08_mpi_real4 = OMPI_MPI_REAL4;
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OMPI_DECLSPEC int ompi_f08_mpi_real8 = OMPI_MPI_REAL8;
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OMPI_DECLSPEC int ompi_f08_mpi_real16 = OMPI_MPI_REAL16;
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OMPI_DECLSPEC int ompi_f08_mpi_double_precision = OMPI_MPI_DOUBLE_PRECISION;
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OMPI_DECLSPEC int ompi_f08_mpi_complex = OMPI_MPI_COMPLEX;
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OMPI_DECLSPEC int ompi_f08_mpi_complex8 = OMPI_MPI_COMPLEX8;
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OMPI_DECLSPEC int ompi_f08_mpi_complex16 = OMPI_MPI_COMPLEX16;
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OMPI_DECLSPEC int ompi_f08_mpi_complex32 = OMPI_MPI_COMPLEX32;
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OMPI_DECLSPEC int ompi_f08_mpi_double_complex = OMPI_MPI_DOUBLE_COMPLEX;
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OMPI_DECLSPEC int ompi_f08_mpi_2real = OMPI_MPI_2REAL;
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OMPI_DECLSPEC int ompi_f08_mpi_2double_precision = OMPI_MPI_2DOUBLE_PRECISION;
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OMPI_DECLSPEC int ompi_f08_mpi_2integer = OMPI_MPI_2INTEGER;
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OMPI_DECLSPEC int ompi_f08_mpi_2complex = OMPI_MPI_2COMPLEX;
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OMPI_DECLSPEC int ompi_f08_mpi_2double_complex = OMPI_MPI_2DOUBLE_COMPLEX;
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OMPI_DECLSPEC int ompi_f08_mpi_real2 = OMPI_MPI_REAL2;
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OMPI_DECLSPEC int ompi_f08_mpi_logical1 = OMPI_MPI_LOGICAL1;
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OMPI_DECLSPEC int ompi_f08_mpi_logical2 = OMPI_MPI_LOGICAL2;
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OMPI_DECLSPEC int ompi_f08_mpi_logical4 = OMPI_MPI_LOGICAL4;
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OMPI_DECLSPEC int ompi_f08_mpi_logical8 = OMPI_MPI_LOGICAL8;
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