I am trying to build the branch via WSL on my Windows machine, but
configure reports that it cannot find the mpc.h include file. It is correct
- that is lacking, but installing or reinstalling mpc does not help. The
program I want to test can be found here:
https://github.com/arjenmarkus/memos-on-programming/tree/main/src/coarrays-domain-decomposition
.
I will try and see whether I can repair the installation of mpc, it would
be nice if that works. Otherwise, you might have a look at my program if
you feel that is useful.
Regards,
Arjen
Op ma 21 jul 2025 om 13:44 schreef Andre Vehreschild <ve...@gmx.de>:
> Very much appreciated. Thank you!
>
> - Andre
>
> On Mon, 21 Jul 2025 13:38:56 +0200
> Arjen Markus <arjen.markus...@gmail.com> wrote:
>
> > I have a not-so-trivial, but compact test case for you. I will try it out
> > with the receipe you gave :).
> >
> > Regards,
> >
> > Arjen
> >
> > Op ma 21 jul 2025 om 13:31 schreef Andre Vehreschild <ve...@gmx.de>:
> >
> > > Hi all,
> > >
> > > we are looking for people having old and/or modern Fortran codes
> available
> > > that use Coarrays more or less intensively. Jerry has build a test
> branch
> > > on
> > > gcc's git, so testing is easier than usual:
> > >
> > > > For those who need some guidance to the test branch:
> > > >
> > > > $ git clone git://gcc.gnu.org/git/gcc.git
> > > >
> > > > $ cd gcc
> > > > $ git checkout remotes/origin/devel/gfortran-test
> > > > $ git switch -c gfortran-test
> > > >
> > > > Configure and build as usual in a separate directory not the source
> > > directory.
> > > >
> > > > cd .. ; mkdir build ; cd build ; ../gcc/configure --prefix=<PREFIX>
> > > > gmake install
> > > >
> > > > Replace <PREFIX> with a writeable full path on your system, e.g.
> > > > ${HOME}/gcc-16
> > > >
> > > > To use the new gcc use:
> > > >
> > > > export PATH=${HOME}/gcc-16/bin:$PATH
> > > >
> > > > and
> > > >
> > > > export LD_LIBRARY_PATH=${HOME}/gcc-16/lib64:$LD_LIBRARY_PATH
> > > >
> > > > or
> > > >
> > > > export LD_LIBRARY_PATH=${HOME}/gcc-16/lib:$LD_LIBRARY_PATH
> > > >
> > > > depending on how your OS names the library directory. Just have a
> look
> > > into
> > > > gcc-16 and use lib64 if it is present, else use lib.
> > >
> > > We like everyone to test the new caf_shmem library and report back any
> > > problems, like "does not compile", "does not run" or "hangs during
> > > execution".
> > > If you can narrow down the problem, that would be of great help. If
> you can
> > > also share (whether in private or in public) any code, that has issues,
> > > please
> > > do not hesitate to contact me or the gfortran mailing list.
> > >
> > > To compile your Fortran coarray code add -lcaf_shmem instead of
> -lcaf_mpi,
> > > if
> > > you previously used OpenCoarrays. When using the OpenCoarrays compile
> > > helper
> > > `caf` replace it with `gfortran -fcoarray=lib` for comiling and
> `gfortran
> > > -fcoarray=lib -lcaf_shmem` for linking.
> > >
> > > caf_shmem is multi process shared memory library for using coarrays
> with
> > > gfortran from version 16 on. It can provide great speed improvements in
> > > comparison to MPI-based implementations, but is limited to a single
> node
> > > where
> > > all CPUs can share memory.
> > >
> > > Any feedback is greatly appreciated.
> > >
> > > Thanks and regards,
> > > Andre
> > > --
> > > Andre Vehreschild * Email: vehre ad gmx dot de
> > >
>
>
> --
> Andre Vehreschild * Email: vehre ad gmx dot de
>
