Older gfortran compilers (e.g., the gfortran that ships in RHEL5) do
not support ISO_C_BINDING, and therefore do not support the
TYPE(C_PTR) type. As such, they cannot support the overloaded
interfaces for MPI_WIN_ALLOCATE_SHARED and MPI_SHARED_QUERY that are
mandated in MPI-3.
So we separate those interfaces out into a separate .F90 file that is
#include'd in the tkr mpi.F90 file. In this separate .F90 file, we
use an #if to determine whether the compiler supports ISO_C_BINDING or
not.
Also re-jiggered the order of testing in ompi_setup_mpi_fortran.m4: we
now need to test whether the compiler supports ISO_C_BINDING even when
we're only building the mpi module (not strictly when we're building
the mpi_f08 module).
Finally, tweaked the use-mpi-tkr/Makefile.am to:
* Add some proper dependencies for mpi.F90
* Allow the general AM compilation to be used instead of supplying a
specific rule for compiling mpi.F90
cmr=v1.8.2:ticket=trac:4736
This commit was SVN r32204.
The following Trac tickets were found above:
Ticket 4736 --> https://svn.open-mpi.org/trac/ompi/ticket/4736
Several problems with MPI_Win_allocate_shared and MPI_Win_shared_query
were discovered in a code review. This commit fixes them:
* Add _cptr versions of both subroutines in mpif-h, use-mpi-tkr, and
use-mpi-ignore-tkr directories
* Fix case of PMPI weak symbols for both C implementations
* Add MPI and PMPI f08 implementations of both subroutines (there is
no _cptr version in the mpi_f08 module)
* Fixed _f08 suffix on the f08 module of both subroutines
cmr=v1.8.2:ticket=trac:4736
This commit was SVN r32162.
The following Trac tickets were found above:
Ticket 4736 --> https://svn.open-mpi.org/trac/ompi/ticket/4736
There is more comprehensive work regarding MPI_SIZEOF coming, but the
Fortran working group in the MPI Forum is debating this internally,
and I'm still doing more testing to get a final solution. So for the
moment, just remove real*16 and complex*32 support so that it compiles
porperly with older compilers (that do not support real*16 and
complex*32).
This commit was SVN r32048.
Thanks to Michael Rachner for pointing out the issue.
cmr=v1.8.2:ticket=trac:4736
This commit was SVN r32042.
The following Trac tickets were found above:
Ticket 4736 --> https://svn.open-mpi.org/trac/ompi/ticket/4736
This is part one of several Fortran improvements and fixes. This
first part removes the now-defunct scripts that are used to generate
the .f90 files in the use-mpi-tkr implementation, and just commits the
output from those scripts. This makes long-term maintenance of the
use-mpi-tkr implementation simpler.
cmr=v1.8.2:reviewer=jsquyres:subject=Various Fortran fixes/improvements
This commit was SVN r32040.
Issue noted by Walter Spector on the user's mailing list.
Throwing to Craig Rasmussen for review.
cmr=v1.8.2:reviewer=jsquyres
This commit was SVN r31933.
Since we only builds the "small" size of the "mpi" module any more, it
does not take a long time to compile. So remove the warning that is
emitted.
Also remove a vestage of Windows support that was leftover in the
Fortran area (i.e., building mpi.obj).
This commit was SVN r31374.
Differentiate the pre-defined attribute and conversion interfaces into
those with INTEGER handles and those with TYPE(MPI_*) handles.
Refs trac:4157
cmr=v1.8.1:ticket=trac:4512
This commit was SVN r31372.
The following Trac tickets were found above:
Ticket 4157 --> https://svn.open-mpi.org/trac/ompi/ticket/4157
Ticket 4512 --> https://svn.open-mpi.org/trac/ompi/ticket/4512
We no longer specify interfaces with choice buffers in the TKR "mpi"
module implementation -- MPI-3 prohibits it (see r30169 and r30170 for
more details).
cmr=v1.7.5:ticket=trac:4372
This commit was SVN r31033.
The following SVN revision numbers were found above:
r30169 --> open-mpi/ompi@759ee33fd4
r30170 --> open-mpi/ompi@776f6144af
The following Trac tickets were found above:
Ticket 4372 --> https://svn.open-mpi.org/trac/ompi/ticket/4372
I have only checked that these bindings compile without warnings. They
appear to work with both intel's compilers and gfortran.
cmr=v1.7.5:reviewer=jsquyres
This commit was SVN r31010.
The attribute and conversion callback subroutine interfaces
are used by all 3 modules, and belong in the fortran/base directory,
not the directory of a specific module.
Also clean up some comments.
cmr=v1.7.4:ticket=4162
This commit was SVN r30378.
The following Trac tickets were found above:
Ticket 4162 --> https://svn.open-mpi.org/trac/ompi/ticket/4162
This configure option was only relevant when we were generating TKR
"use mpi" interfaces for MPI subroutines with choice buffers. Now
that we aren't, the only interface that needs to accept a choice
buffer is MPI_SIZEOF (which we have to provide).
And since there's now only several dozen interfaces in the "mpi" TKR
module, there's no reason to not generate ''all'' possible array rank
values (when there were thousands of interfaces, generating 4-vs-7
array ranks per interface per type was a big deal). The default used
to be 4; now we can just hard-code it to 7, the max possible value for
Fortran 2003 (I think the max was raised ?to 11? in F2008, but let's
not go there for now).
cmr=v1.7.5:reviewer=dgoodell:subject=Remove even more dead Fortran configury
This commit was SVN r30257.
http://www.open-mpi.org/community/lists/users/2014/01/23327.php
Revert the Fortran mpi module default size to "small", meaning that we
won't provide interfaces for MPI subroutines that take a choice buffer
any more. The short version is that MPI-3 p610:34-41 disallows it.
This commit simply removes all these subroutines from the build
process (i.e., remove them from nodist_libmpi_usempi_la_SOURCES).
Since MPI-3 actually forbids providing these interfaces, I'll do a
second commit to actually remove all the scripts and associated
Makefile.am junk.
cmr=v1.7.4:reviewer=dgoodell:subject=Remove choice buffer interfaces from Fortran mpi module
This commit was SVN r30169.
Thanks to Jeff for finding and fixing compilation issues with
the new fortran bindings.
cmr=v1.7.4:reviewer=jsquyres:ticket=trac:3796
This commit was SVN r29335.
The following Trac tickets were found above:
Ticket 3796 --> https://svn.open-mpi.org/trac/ompi/ticket/3796
Blocking versions are simple linear algorithms implemented in coll/basic. Non-
blocking versions are from libnbc 1.1.1. All algorithms have been tested with
simple test cases.
cmr=v1.7.4:reviewer=jsquyres
This commit was SVN r29265.
This patch reshape the way we deal with topologies completely. Where
our topologies were mainly storage components (they were not capable
of creating the new communicator), the new version is built around a
[possibly] common representation (in mca/topo/topo.h), but the functions
to attach and retrieve the topological information are specific to each
component. As a result the ompi_create_cart and ompi_create_graph functions
become useless and have been removed.
In addition to adding the internal infrastructure to manage the topology
information, it updates the MPI interface, and the debuggers support and
provides all Fortran interfaces.
This commit was SVN r28687.
aren't separated out into individual commits; they represent a few
months of work in the Mercurial branch, and it seemed error-prone to
try to break them up into multiple SVN commits.
* Remove 2nd overloaded interfaces for MPI_TESTALL, MPI_TESTSOME,
MPI_WAITALL, and MPI_WAITSOME in the "mpi" module implementations
(because we're not allowed to have them, anyway -- it causes
complications in the profiling interface). This forced an MPI-2.2
errata in the MPI Forum; we applied the errata here (the array of
statuses parameter could not have a specific dimension specified in
the dummy argument). Fixes trac:3166.
* Similarly, fix type for MPI_ARGVS_NULL in Fortran
* Add MPI_3.0 function MPI_F_SYNC_REG (Fortran interfaces only).
* Add MPI-3.0 MPI_MESSAGE_NO_PROC in the mpi_f08 module.
* Added mpi_f08 handle comparison operators, per MPI-3.0 addendum to
the F08 proposal at the last Forum meeting.
* Added missing type(MPI_File) and type(Message) in mpi_f08 module.
* Fix --disable-mpi-io configure switch with all Fortran interfaces
* Re-factor the Fortran header files to be fundamentally simpler and
easier to maintain. Fortran constant values in the header files
are now generated by a script named mpif-values.pl during
autogen.pl (they were previously generated by mpif-common.pl, but
it was quite a bit more subtle/complex). A second commit will
follow this one to update svn:ignore values (just to ensure we
don't muck up the first commit with the SVN client getting confused
by the changed ignore values and new/changed files).
* Fix some dependencies for compile ordering in
ompi/mpi/fortran/use-mpi-ignore-tkr/Makefile.am.
* Fix bad wording in several places (.m4 file name, ompi_info output,
etc.): we previoulsy said "F08 assumed shape" when we really meant
"F08 assumed rank" (for Fortran gurus, those are very different
things).
* Removed the GREEK/SVN version string from mpif.h. It really had no
purpose being there.
Still to be done:
* Handling of 2D array of strings in MPI_COMM_SPAWN_MULTIPLE still
isn't right yet. Not sure how many people really care about this
:-), but it is still broken.
This commit was SVN r26997.
The following Trac tickets were found above:
Ticket 3166 --> https://svn.open-mpi.org/trac/ompi/ticket/3166
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.
