On 09/20/2018 10:01 PM, Thomas Koenig wrote:
Hi Damian,
On a related note, two Sourcery Institute developers have attempted to
edit
the GCC build system to make the downloading and building of OpenCoarrays
automatically part of the gfortran build process. Neither developer
succeeded.
We addressed integrating OpenCoarray into the gcc source tree at the
recent Gcc summit during the gfortran BoF session.
Feedback from people working for big Linux distributions was that they
would prefer to package OpenCoarrays as a separate library.
(They also mentioned it was quite hard to build.)
Well, Linux distributors have to fit the build of OpenCoarrays into
*their* build system, which might be just as complicated as we trying it
to force it into *gcc's* build system ...
For an individual, OpenCoarrays is not hard to build, and the web page
www.opencoarrays.org offers multiple solutions:
"Installation via package management is generally the easiest and most
reliable option. See below for the package-management installation
options for Linux, macOS, and FreeBSD. Alternatively, download and
build the latest OpenCoarrays release via the contained installation
scripts or with CMake."
I choose the cmake based one, because I already had cmake installed to
be able to build ECMWF's (ecmwf.int) eccodes package. It probably helped
that I also already had openmpi installed. From my command history:
1754 tar zxvf ~/Downloads/OpenCoarrays-2.2.0.tar.gz
1755 cd OpenCoarrays-2.2.0/
1756 ls
1757 less README.md
1758 cd ..
1759 mkdir opencoarrays-build
1760 cd opencoarrays-build
1761 (export FC=gfortran; export CC=gcc; cmake ../OpenCoarrays-2.2.0/
-DCMAKE_INSTALL_PREFIX=$HOME/opencoarrays)
1762 make
1763 make test
1764 make install
After that, it was a breeze to test my mock weather program
(moene.org/~toon/random-weather.f90), that I had built until then only
with -fcoarray=single.
--
Toon Moene - e-mail: t...@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/
Progress of GNU Fortran: http://gcc.gnu.org/wiki/GFortran#news
