2013-09-27 01:56:20 +04:00
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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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2004-03-17 02:34:41 +03:00
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/*
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2005-11-05 22:57:48 +03:00
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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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2007-12-21 09:02:00 +03:00
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* Copyright (c) 2004-2007 The University of Tennessee and The University
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2005-11-05 22:57:48 +03:00
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* of Tennessee Research Foundation. All rights
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* reserved.
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2004-11-28 23:09:25 +03:00
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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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2005-03-24 15:43:37 +03:00
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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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== Highlights ==
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.
2012-04-18 19:57:29 +04:00
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* Copyright (c) 2006-2012 Cisco Systems, Inc. All rights reserved.
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2009-02-24 20:17:33 +03:00
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* Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
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2013-09-27 01:56:20 +04:00
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* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
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* reserved.
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2004-11-22 04:38:40 +03:00
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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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2004-03-17 02:34:41 +03:00
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* $HEADER$
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*/
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2004-06-07 19:33:53 +04:00
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#ifndef OMPI_WIN_H
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#define OMPI_WIN_H
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2004-03-17 02:34:41 +03:00
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2006-01-28 18:38:37 +03:00
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#include "ompi_config.h"
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2004-03-26 08:32:37 +03:00
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#include "mpi.h"
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2006-01-28 18:38:37 +03:00
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2005-07-03 20:06:07 +04:00
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#include "opal/class/opal_object.h"
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2006-01-28 18:38:37 +03:00
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#include "opal/class/opal_hash_table.h"
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#include "ompi/errhandler/errhandler.h"
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#include "ompi/info/info.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/group/group.h"
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#include "ompi/mca/osc/osc.h"
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2009-08-20 15:42:18 +04:00
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BEGIN_C_DECLS
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2004-03-17 02:34:41 +03:00
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2006-01-31 05:44:08 +03:00
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/* flags */
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2006-01-28 18:38:37 +03:00
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#define OMPI_WIN_FREED 0x00000001
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#define OMPI_WIN_INVALID 0x00000002
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#define OMPI_WIN_NO_LOCKS 0x00000004
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2006-01-31 05:44:08 +03:00
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/* mode */
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#define OMPI_WIN_ACCESS_EPOCH 0x00000001
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#define OMPI_WIN_EXPOSE_EPOCH 0x00000002
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2006-02-24 16:04:15 +03:00
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#define OMPI_WIN_FENCE 0x00000010
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#define OMPI_WIN_POSTED 0x00000020
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#define OMPI_WIN_STARTED 0x00000040
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#define OMPI_WIN_LOCK_ACCESS 0x00000080
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2004-03-17 02:34:41 +03:00
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2007-12-21 09:02:00 +03:00
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OMPI_DECLSPEC extern opal_pointer_array_t ompi_mpi_windows;
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2006-02-01 00:40:12 +03:00
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2004-06-07 19:33:53 +04:00
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struct ompi_win_t {
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2006-01-28 18:38:37 +03:00
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opal_object_t w_base;
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2004-03-19 03:00:09 +03:00
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2006-01-28 18:38:37 +03:00
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opal_mutex_t w_lock;
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2004-03-17 02:34:41 +03:00
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2006-01-28 18:38:37 +03:00
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char w_name[MPI_MAX_OBJECT_NAME];
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2004-03-19 03:00:09 +03:00
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2006-02-01 00:40:12 +03:00
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/* Group associated with this window. */
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2006-01-28 18:38:37 +03:00
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ompi_group_t *w_group;
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2004-03-17 02:34:41 +03:00
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2006-02-01 00:40:12 +03:00
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/* Information about the state of the window. */
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uint16_t w_flags;
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2006-01-28 18:38:37 +03:00
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/* Attributes */
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opal_hash_table_t *w_keyhash;
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2004-03-19 03:00:09 +03:00
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2006-01-28 18:38:37 +03:00
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/* index in Fortran <-> C translation array */
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int w_f_to_c_index;
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2004-03-19 03:00:09 +03:00
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2006-02-01 00:40:12 +03:00
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/* Error handling. This field does not have the "w_" prefix so
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that the OMPI_ERRHDL_* macros can find it, regardless of
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whether it's a comm, window, or file. */
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2004-09-06 16:06:27 +04:00
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ompi_errhandler_t *error_handler;
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ompi_errhandler_type_t errhandler_type;
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2006-01-28 18:38:37 +03:00
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/* displacement factor */
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int w_disp_unit;
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void *w_baseptr;
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2006-10-18 00:20:58 +04:00
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size_t w_size;
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2006-01-28 18:38:37 +03:00
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2006-02-01 00:40:12 +03:00
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/** Current epoch / mode (access, expose, lock, etc.). Checked by
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the argument checking code in the MPI layer, set by the OSC
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component. Modified without locking w_lock. */
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volatile uint16_t w_mode;
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2006-01-28 18:38:37 +03:00
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/* one sided interface */
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ompi_osc_base_module_t *w_osc_module;
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2004-03-17 02:34:41 +03:00
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};
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2004-06-07 19:33:53 +04:00
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typedef struct ompi_win_t ompi_win_t;
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2004-10-22 20:06:05 +04:00
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OMPI_DECLSPEC OBJ_CLASS_DECLARATION(ompi_win_t);
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2006-01-28 18:38:37 +03:00
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2009-02-24 20:17:33 +03:00
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/**
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* Padded struct to maintain back compatibiltiy.
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* See ompi/communicator/communicator.h comments with struct ompi_communicator_t
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* for full explanation why we chose the following padding construct for predefines.
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*/
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#define PREDEFINED_WIN_PAD (sizeof(void*) * 64)
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struct ompi_predefined_win_t {
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struct ompi_win_t win;
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char padding[PREDEFINED_WIN_PAD - sizeof(ompi_win_t)];
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};
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typedef struct ompi_predefined_win_t ompi_predefined_win_t;
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OMPI_DECLSPEC extern ompi_predefined_win_t ompi_mpi_win_null;
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== Highlights ==
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.
2012-04-18 19:57:29 +04:00
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OMPI_DECLSPEC extern ompi_predefined_win_t *ompi_mpi_win_null_addr;
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2006-01-28 18:38:37 +03:00
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2006-02-01 00:40:12 +03:00
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int ompi_win_init(void);
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int ompi_win_finalize(void);
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2006-01-28 18:38:37 +03:00
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2006-10-18 00:20:58 +04:00
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int ompi_win_create(void *base, size_t size, int disp_unit,
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2006-02-01 00:40:12 +03:00
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ompi_communicator_t *comm, ompi_info_t *info,
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ompi_win_t **newwin);
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2006-01-28 18:38:37 +03:00
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2006-02-01 00:40:12 +03:00
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int ompi_win_free(ompi_win_t *win);
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2006-01-28 18:38:37 +03:00
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2013-09-27 01:56:20 +04:00
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OMPI_DECLSPEC int ompi_win_set_name(ompi_win_t *win, const char *win_name);
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2009-05-01 02:36:09 +04:00
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OMPI_DECLSPEC int ompi_win_get_name(ompi_win_t *win, char *win_name, int *length);
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2006-01-28 18:38:37 +03:00
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2009-05-01 02:36:09 +04:00
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OMPI_DECLSPEC int ompi_win_group(ompi_win_t *win, ompi_group_t **group);
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2006-01-28 18:38:37 +03:00
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2006-05-18 22:05:46 +04:00
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/* Note that the defintion of an "invalid" window is closely related
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to the defintion of an "invalid" communicator. See a big comment
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in ompi/communicator/communicator.h about this. */
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2006-02-01 00:40:12 +03:00
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static inline int ompi_win_invalid(ompi_win_t *win) {
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if (NULL == win ||
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MPI_WIN_NULL == win ||
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(OMPI_WIN_INVALID & win->w_flags) ||
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(OMPI_WIN_FREED & win->w_flags)) {
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return true;
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} else {
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2006-01-28 18:38:37 +03:00
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return false;
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}
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2006-02-01 00:40:12 +03:00
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}
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2006-01-28 18:38:37 +03:00
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2006-02-01 00:40:12 +03:00
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static inline int ompi_win_peer_invalid(ompi_win_t *win, int peer) {
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if (win->w_group->grp_proc_count <= peer) return true;
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return false;
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}
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2004-10-20 16:28:09 +04:00
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2006-02-01 00:40:12 +03:00
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static inline int ompi_win_rank(ompi_win_t *win) {
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return win->w_group->grp_my_rank;
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}
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static inline bool ompi_win_allow_locks(ompi_win_t *win) {
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2006-02-07 21:45:18 +03:00
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return (0 == (win->w_flags & OMPI_WIN_NO_LOCKS));
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2006-02-01 00:40:12 +03:00
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}
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static inline int16_t ompi_win_get_mode(ompi_win_t *win) {
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int16_t mode = win->w_mode;
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opal_atomic_rmb();
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return mode;
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}
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static inline void ompi_win_set_mode(ompi_win_t *win, int16_t mode) {
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win->w_mode = mode;
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opal_atomic_wmb();
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}
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2006-01-31 05:44:08 +03:00
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2006-08-26 00:39:33 +04:00
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static inline void ompi_win_append_mode(ompi_win_t *win, int16_t mode) {
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win->w_mode |= mode;
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opal_atomic_wmb();
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}
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static inline void ompi_win_remove_mode(ompi_win_t *win,
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int16_t mode)
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{
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win->w_mode &= ~mode;
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opal_atomic_wmb();
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}
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2006-02-24 16:04:15 +03:00
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/* already in an access epoch */
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static inline bool ompi_win_access_epoch(ompi_win_t *win) {
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int16_t mode = ompi_win_get_mode(win);
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2006-10-05 09:11:05 +04:00
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return (0 != (OMPI_WIN_ACCESS_EPOCH & mode) ? true : false);
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2006-02-24 16:04:15 +03:00
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}
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2006-09-01 01:07:52 +04:00
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/* already in an exposure epoch */
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static inline bool ompi_win_exposure_epoch(ompi_win_t *win) {
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int16_t mode = ompi_win_get_mode(win);
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2006-10-05 09:11:05 +04:00
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return (0 != (OMPI_WIN_EXPOSE_EPOCH & mode) ? true : false);
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2006-09-01 01:07:52 +04:00
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}
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2006-02-24 16:04:15 +03:00
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/* we're either already in an access epoch or can easily start one
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(stupid fence rule). Either way, it's ok to be the origin of a
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communication call. */
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static inline bool ompi_win_comm_allowed(ompi_win_t *win) {
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int16_t mode = ompi_win_get_mode(win);
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2006-10-05 09:11:05 +04:00
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return (0 != (OMPI_WIN_ACCESS_EPOCH & mode || OMPI_WIN_FENCE & mode) ? true : false);
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2006-02-24 16:04:15 +03:00
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}
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2009-08-20 15:42:18 +04:00
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END_C_DECLS
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2004-03-17 02:34:41 +03:00
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#endif
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