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.
Roll in the ORTE state machine. Remove last traces of opal_sos. Remove UTK epoch code.
Please see the various emails about the state machine change for details. I'll send something out later with more info on the new arch.
This commit was SVN r26242.
supposed to. I.e., half-baked/not complete stuff.
This commit backs out all of r25545. Sorry folks!
This commit was SVN r25546.
The following SVN revision numbers were found above:
r25545 --> open-mpi/ompi@7f9ae11faf
to make MPI_IN_PLACE (and other sentinel Fortran constants) work on OS
X, we need to use the following compiler (linker) flag:
-Wl,-commons,use_dylibs
So if we're compiling on OS X, test to see if that flag works with the
compiler. If so, add it to the wrapper FFLAGS and FCFLAGS (note that
per a future update, we'll only have one Fortran compiler anyway).
Fixes trac:1982.
This commit was SVN r25545.
The following Trac tickets were found above:
Ticket 1982 --> https://svn.open-mpi.org/trac/ompi/ticket/1982
be applied. Correct the MPI validation process of the
MPI_Accumulate arguments.
Fix another potential problem not yet reported. If we convert the
MPI datatypes direclty into OPAL datatypes, we will restrict their
number to the locally different types. Which might not be identical
on the remote node, if we are in a heterogeneous environment. So,
for MPI One sided only deal with MPI level types, never simplify
them on OPAL types (at least on the args). The unfortunate
outcome is that we need to create the args for all datatypes.
This commit was SVN r24466.
This is a fairly intrusive change, but outside of the moving of opal/event to opal/mca/event, the only changes involved (a) changing all calls to opal_event functions to reflect the new framework instead, and (b) ensuring that all opal_event_t objects are properly constructed since they are now true opal_objects.
Note: Shiqing has just returned from vacation and has not yet had a chance to complete the Windows integration. Thus, this commit almost certainly breaks Windows support on the trunk. However, I want this to have a chance to soak for as long as possible before I become less available a week from today (going to be at a class for 5 days, and thus will only be sparingly available) so we can find and fix any problems.
Biggest change is moving the libevent code from opal/event to a new opal/mca/event framework. This was done to make it much easier to update libevent in the future. New versions can be inserted as a new component and tested in parallel with the current version until validated, then we can remove the earlier version if we so choose. This is a statically built framework ala installdirs, so only one component will build at a time. There is no selection logic - the sole compiled component simply loads its function pointers into the opal_event struct.
I have gone thru the code base and converted all the libevent calls I could find. However, I cannot compile nor test every environment. It is therefore quite likely that errors remain in the system. Please keep an eye open for two things:
1. compile-time errors: these will be obvious as calls to the old functions (e.g., opal_evtimer_new) must be replaced by the new framework APIs (e.g., opal_event.evtimer_new)
2. run-time errors: these will likely show up as segfaults due to missing constructors on opal_event_t objects. It appears that it became a typical practice for people to "init" an opal_event_t by simply using memset to zero it out. This will no longer work - you must either OBJ_NEW or OBJ_CONSTRUCT an opal_event_t. I tried to catch these cases, but may have missed some. Believe me, you'll know when you hit it.
There is also the issue of the new libevent "no recursion" behavior. As I described on a recent email, we will have to discuss this and figure out what, if anything, we need to do.
This commit was SVN r23925.
This merges the branch containing the revamped build system based around converting autogen from a bash script to a Perl program. Jeff has provided emails explaining the features contained in the change.
Please note that configure requirements on components HAVE CHANGED. For example. a configure.params file is no longer required in each component directory. See Jeff's emails for an explanation.
This commit was SVN r23764.
status structure or the _ucount field in the status structure.
On 64-bit sparc, the macros resolve into integer array assignments.
For all others, they are just simple assignments. This fixes
possible BUS errors seen when running on the SPARC processor.
This bug was introduced when the _count field changed from an int
into a size_t. See the changes to request.h for additional details.
This commit fixes trac:2514.
This commit was SVN r23554.
The following Trac tickets were found above:
Ticket 2514 --> https://svn.open-mpi.org/trac/ompi/ticket/2514
This commit:
* Adds the configury to figure out how many Fortran INTEGERs are
necessary to represent the C MPI_Status (which now includes a size_t
member).
* Sets MPI_STATUS_SIZE to this value in mpif-config.h.in.
* Adds a big comment in status_c2f.c explaining why the no changes
were necessary to how we copy statuses between Fortran and C.
This commit was SVN r23472.
The following SVN revision numbers were found above:
r23467 --> open-mpi/ompi@733d25a8a3
r23468 --> open-mpi/ompi@963fcb13a5
r23470 --> open-mpi/ompi@418b989781
r23471 --> open-mpi/ompi@bc74a446ac
step is the configure and Fortran mojo that Jeff will put in. Until then I
guess the Fortran interface is broken (at least all functions using the hidden
count firld in the MPI_Status).
This commit was SVN r23467.
opal_progress is called then check the status of the request before
returning. opal_progress is called only once. This logic parallels
MPI_Test (ompi_request_default_test).
Thanks to Shaun Jackman for submitting the patch.
This commit was SVN r23215.
consequences depending on whether the communicator is an intra or an inter
communicator.
fixes trac:2415
This commit was SVN r23187.
The following Trac tickets were found above:
Ticket 2415 --> https://svn.open-mpi.org/trac/ompi/ticket/2415
(OMPI_ERR_* = OPAL_SOS_GET_ERR_CODE(ret)), since the return value could be a
SOS-encoded error. The OPAL_SOS_GET_ERR_CODE() takes in a SOS error and returns
back the native error code.
* Since OPAL_SUCCESS is preserved by SOS, also change all calls of the form
(OPAL_ERROR == ret) to (OPAL_SUCCESS != ret). We thus avoid having to
decode 'ret' to get the native error code.
This commit was SVN r23162.
Remove the --enable-progress-threads option as this is no longer functional, and hardcode OPAL_ENABLE_PROGRESS_THREADS to 0.
Replace the --enable-mpi-threads option with --enable-mpi-thread-multiple as this is clearer as to meaning. This option automatically turns "on" opal thread support if it wasn't already so specified. If the user specifies --disable-opal-multi-threads --enable-mpi-thread-multiple, we will error out with a message
Add a new --enable-opal-multi-threads option that turns "on" opal thread support without doing anything wrt mpi-thread-multiple
This commit was SVN r22841.
After talking to both Brian and George, the conensus was to just
remove the flag and the test function. Begone, evil spirits, BEGONE!
This commit was SVN r22831.
The following Trac tickets were found above:
Ticket 2273 --> https://svn.open-mpi.org/trac/ompi/ticket/2273
we should have also relaxed the error checking for MPI_GRAPH_CREATE.
Thanks to David Singleton for pointing this out.
This commit was SVN r22251.
The following SVN revision numbers were found above:
r21816 --> open-mpi/ompi@b8332ea2b2
other request-using frameworks.
- Rather than having mpi/c/* functions allocate requests explicitly,
pass the MPI_Request* down to the I/O component and have it
perform the allocation.
- While the I/O base provides a base request which can be used,
it is not required and all request management occurs within
the component.
- Push progress management into the component, rather than having it
happen in the base. Progress functions are now easily registered,
and not all (ie, the one existing) components use progress functions
in any rational way.
ROMIO switched to generalized requests instead of MPIO_Requests many
moons ago, and Open MPI now uses ROMIO's generalized requests, so there
is no reason to wrap those requests (which are OMPI requests) in another
level of request.
Now the file function passes the MPI_Request* to the ROMIO component,
which passes it to the underlying ROMIO function, which calls
MPI_Grequest_start to create an OMPI request, which is what gets set
as the request to the user. Much cleaner.
This patch has two motivations. One, a whole heck of a lot of code
just got removed, and request handling is now much cleaner for I/O
components. Two, by adding support for Argonne's proposed generalized
request extensions, we can allow ROMIO to provide async I/O through
generalized requests, which we couldn't rationally do in the old
setup due to the crazy request completion rules.
This commit was SVN r22235.
from "MPI_*_errhandler_fn" to "MPI_*_errhandler_function" (and their
corresponding C++ types, too). Also updated the corresponding man
pages, and marked the typedefs to the now-deprecated types as
deprecated.
This commit was SVN r22122.
The following Trac tickets were found above:
Ticket 2060 --> https://svn.open-mpi.org/trac/ompi/ticket/2060
