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.
260 строки
7.6 KiB
Fortran
260 строки
7.6 KiB
Fortran
! -*- f90 -*-
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! Copyright (c) 2009-2012 Cisco Systems, Inc. All rights reserved.
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! Copyright (c) 2009-2012 Los Alamos National Security, LLC.
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! All rights reserved.
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! $COPYRIGHT$
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#include "ompi/mpi/fortran/configure-fortran-output.h"
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module mpi_f08_interfaces_callbacks
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_User_function(invec, inoutvec, len, datatype) BIND(C)
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USE mpi_f08_types
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USE, INTRINSIC :: ISO_C_BINDING, ONLY : C_PTR
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IMPLICIT NONE
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TYPE(C_PTR), VALUE :: invec, inoutvec
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INTEGER :: len
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TYPE(MPI_Datatype) :: datatype
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END SUBROUTINE
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END INTERFACE
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!Example of a user defined callback function
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!
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! subroutine my_user_function( invec, inoutvec, len, type ) bind(c)
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! use, intrinsic :: iso_c_binding, only : c_ptr, c_f_pointer
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! type(c_ptr), value :: invec, inoutvec
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! integer, intent(in) :: len
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! type(MPI_Datatype) :: type
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! real, pointer :: invec_r(:), inoutvec_r(:)
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! if (type%MPI_VAL == MPI_REAL%MPI_VAL) then
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! call c_f_pointer(invec, invec_r, (/ len /) )
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! call c_f_pointer(inoutvec, inoutvec_r, (/ len /) )
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! inoutvec_r = invec_r + inoutvec_r
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! end if
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! end subroutine my_function
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!
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!The MPI library may internally store such callbacks in a global array All_MPI_Ops:
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!
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! type, private :: Internal_MPI_op
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! procedure(user_function), nopass, pointer :: user_fn
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! end type
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! type(Internal_MPI_op), private :: All_MPI_Ops(Max_Operations)
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!
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!Within MPI_Op_create, the user_fn is stored in All_MPI_Ops:
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!
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! subroutine MPI_Op_create( user_fn, commute, op ) bind(C)
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! procedure(user_function) :: user_fn
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! type(MPI_Op), intent(out) :: op
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! ...
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! Registered_Operations = Registered_Operations + 1
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! op%MPI_VAL = Registered_Operations
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! All_MPI_Ops(Registered_Operations)%user_fn => user_fn
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!
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!Within MPI_Reduce, the stored user_fn is used to, e.g., to combine
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!recvbuf = sendbuf+recvbuf
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!
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! subroutine MPI_Reduce( sendbuf, recvbuf, count, datatype, op ) bind(C)
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! use, intrinsic :: iso_c_binding, only : c_loc
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! ...
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! call All_MPI_Ops(op%MPI_VAL)%user_fn(c_loc(sendbuf), c_loc(recvbuf), count, datatype)
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!
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Comm_copy_attr_function(oldcomm,comm_keyval,extra_state, &
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attribute_val_in,attribute_val_out,flag,ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Comm) :: oldcomm
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INTEGER :: comm_keyval, ierror
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INTEGER(KIND=MPI_ADDRESS_KIND) :: extra_state, attribute_val_in, attribute_val_out
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LOGICAL :: flag
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Comm_delete_attr_function(comm,comm_keyval, &
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attribute_val, extra_state, ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Comm) :: comm
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INTEGER :: comm_keyval, ierror
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INTEGER(KIND=MPI_ADDRESS_KIND) :: attribute_val, extra_state
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Win_copy_attr_function(oldwin,win_keyval,extra_state, &
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attribute_val_in,attribute_val_out,flag,ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Win) :: oldwin
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INTEGER :: win_keyval, ierror
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INTEGER(KIND=MPI_ADDRESS_KIND) :: extra_state, attribute_val_in, attribute_val_out
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LOGICAL :: flag
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Win_delete_attr_function(win,win_keyval,attribute_val, &
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extra_state,ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Win) :: win
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INTEGER :: win_keyval, ierror
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INTEGER(KIND=MPI_ADDRESS_KIND) :: attribute_val, extra_state
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Type_copy_attr_function(oldtype,type_keyval,extra_state, &
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attribute_val_in,attribute_val_out,flag,ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Datatype) :: oldtype
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INTEGER :: type_keyval, ierror
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INTEGER(KIND=MPI_ADDRESS_KIND) :: extra_state, attribute_val_in, attribute_val_out
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LOGICAL :: flag
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Type_delete_attr_function(datatype,type_keyval, &
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attribute_val,extra_state,ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Datatype) :: datatype
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INTEGER :: type_keyval, ierror
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INTEGER(KIND=MPI_ADDRESS_KIND) :: attribute_val, extra_state
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Comm_errhandler_function(comm,error_code) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Comm) :: comm
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INTEGER :: error_code
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Win_errhandler_function(win, error_code) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Win) :: win
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INTEGER :: error_code
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_File_errhandler_function(file, error_code) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_File) :: file
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INTEGER :: error_code
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Grequest_query_function(extra_state,status,ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Status) :: status
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INTEGER :: ierror
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INTEGER(KIND=MPI_ADDRESS_KIND) :: extra_state
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Grequest_free_function(extra_state,ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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INTEGER :: ierror
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INTEGER(KIND=MPI_ADDRESS_KIND) :: extra_state
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Grequest_cancel_function(extra_state,complete,ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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INTEGER(KIND=MPI_ADDRESS_KIND) :: extra_state
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LOGICAL :: complete
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INTEGER :: ierror
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Datarep_extent_function(datatype, extent, extra_state, ierror) &
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BIND(C)
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USE mpi_f08_types
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IMPLICIT NONE
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TYPE(MPI_Datatype) :: datatype
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INTEGER :: ierror
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INTEGER(KIND=MPI_ADDRESS_KIND) :: extent, extra_state
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END SUBROUTINE
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END INTERFACE
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OMPI_ABSTRACT INTERFACE
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SUBROUTINE MPI_Datarep_conversion_function(userbuf, datatype, count, &
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filebuf, position, extra_state, ierror) &
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BIND(C)
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USE mpi_f08_types
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USE, INTRINSIC :: ISO_C_BINDING, ONLY : C_PTR
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IMPLICIT NONE
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TYPE(C_PTR), VALUE :: userbuf, filebuf
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TYPE(MPI_Datatype) :: datatype
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INTEGER :: count, ierror
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INTEGER(KIND=MPI_OFFSET_KIND) :: position
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INTEGER(KIND=MPI_ADDRESS_KIND) :: extra_state
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END SUBROUTINE
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END INTERFACE
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!
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! For deprecated routines - currently not planned for MPI-3.0
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!
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! OMPI_ABSTRACT INTERFACE
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! SUBROUTINE MPI_Copy_function(oldcomm, keyval, extra_state, attribute_val_in, attribute_val_out, flag, ierr) BIND(C)
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! USE mpi_f08_types
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! IMPLICIT NONE
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! TYPE(MPI_Comm) :: oldcomm
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! INTEGER :: keyval, extra_state, attribute_val_in, attribute_val_out, ierr
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! LOGICAL :: flag
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! END SUBROUTINE
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! END INTERFACE
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!
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! OMPI_ABSTRACT INTERFACE
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! SUBROUTINE MPI_Delete_function(comm, keyval, attribute_val, extra_state, ierr) BIND(C)
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! USE mpi_f08_types
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! IMPLICIT NONE
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! TYPE(MPI_Comm) :: comm
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! INTEGER :: keyval, attribute_val, extra_state, ierr
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! END SUBROUTINE
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! END INTERFACE
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!
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! OMPI_ABSTRACT INTERFACE
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! SUBROUTINE MPI_Handler_function(comm, error_code) BIND(C)
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! USE mpi_f08_types
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! IMPLICIT NONE
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! TYPE(MPI_Comm) :: comm
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! INTEGER :: error_code
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! END SUBROUTINE
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! END INTERFACE
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end module mpi_f08_interfaces_callbacks
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