Announcing OpenCoarrays 2.2.0

[Zaak Beekman]

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OpenCoarrays 2.2.0 has been release.

The most notable changes relative to 2.1.0 are:

The installation of ISO_Fortran_binding is disabled by default now, since it was using GCC C extensions and causing problems when compiled with clang and other non gcc C compiler

ISO_Fortran_binding's official repository is now https://github.com/sourceryinstitute/ISO_Fortran_binding

ISO_Fortran_binding direct support in OpenCoarrays is deprecated; it may be included again at a future date, once ISO_Fortran_binding is more stable/portable

Bugs in GFortran 8.1 have been fixed in the recent GFortran 8.2 and OpenCoarrays now builds and works cleanly out of the box with GFortran 8.2.

Other misc bug fixes and improvements.

As always, please see https://github.com/sourceryinstitute/OpenCoarrays/releases/latest to view the latest release notes and obtain a copy of OpenCoarrays.

Best,

Zaak

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[Vishnu V. Krishnan]

Hi Zaak!

The release notes say:

> ISO_Fortran_binding has not been stripped out of OpenCoarrays, but it's use
> via OpenCoarrays is now deprecated and un-maintained

Is it not needed anymore? Or do I have to install it from the repository you
linked to, if I'm building it with GCC?

Also, does my MPICH install need to be aware of this (during it's build) to be
able to use mpi_08 ?

p.s. Thanks for including a detached signature for the source tarball!

Thanks!
Vishnu

[Zaak Beekman]

On Sunday, August 12, 2018 at 3:00:27 AM UTC-4, Vishnu V. Krishnan wrote:

Hi Zaak!

The release notes say:

> ISO_Fortran_binding has not been stripped out of OpenCoarrays, but it's use
> via OpenCoarrays is now deprecated and un-maintained

Is it not needed anymore? Or do I have to install it from the repository you
linked to, if I'm building it with GCC?

It is not needed by OpenCoarrays. It was packaged with opencoarrays originally because we wanted to leverage our existing build system and CI infrastructure, but it is really an independent package; yes it can enhance the usage of OpenCoarrays, but it is not a requirement.

 

Also, does my MPICH install need to be aware of this (during its build) to be

able to use mpi_08 ?

If you want MPICH to build mpi_08, I believe you need a compiler that supports ISO_Fortran_binding. Currently, GFortran has yet to implement this, but hopefully they will adopt or build upon our groundwork. You do not need mpi_08 to use OpenCoarrays, however.

 

p.s. Thanks for including a detached signature for the source tarball!

No problem! I was wondering who asked for that as I had forgotten.

[Vishnu V. Krishnan]

On Mon, 2018-08-13 at 05:40 -0700, Zaak Beekman wrote:
> On Sunday, August 12, 2018 at 3:00:27 AM UTC-4, Vishnu V. Krishnan wrote:
> >
> > Hi Zaak!
> >
> > The release notes say:
> >
> > > ISO_Fortran_binding has not been stripped out of OpenCoarrays, but it's
> > > use via OpenCoarrays is now deprecated and un-maintained
> >
> > Is it not needed anymore? Or do I have to install it from the repository
> > you linked to, if I'm building it with GCC?
> >
>
> It is not needed by OpenCoarrays. It was packaged with opencoarrays
> originally because we wanted to leverage our existing build system and CI
> infrastructure, but it is really an independent package; yes it can enhance
> the usage of OpenCoarrays, but it is not a requirement.
>

Can you explain what you mean when you say that it can "enhance the usage of
OpenCoarrys" ? Is it that it is then accessible from a C program? Or is it
something internal?

[Zaak Beekman]

Sorry that was probably a bad way of stating it. What I meant by that was just simply that it gives you access to the ISO_Fortran_binding functionality. It is not used internally or otherwise by OpenCoarrays as far as I am aware.

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[Vishnu V. Krishnan]

Ah, okay. GCC will hopefully use it, so they won't have to start from
scratch. Although I don't know if there will be any issues with the license.

Also, the Arch User Repository build script for the 2.2.0 release compiles
well, along with all tests, and works with some simple coarray programs.

Thanks a lot!

[Zaak Beekman]

Happy to help and happy that OC is working for you!

On Tue, Aug 14, 2018 at 12:35 PM Vishnu V. Krishnan <vish...@gmail.com> wrote:

Ah, okay. GCC will hopefully use it, so they woon't have to start from
scratch. Although I don't know if there will be any issues with the licence.

Also, the Arch User Repository build script for the 2.2.0 release compiles
well, along with all tests, and works with some simple coarray programs.

Thanks a lot!

On Tue, 2018-08-14 at 08:04 -0400, Zaak Beekman wrote:
> Sorry that was probably a bad way of stating it. What I meant by that was
> just simply that it gives you access to the ISO_Fortran_binding
> functionality. It is not used internally or otherwise by OpenCoarrays as
> far as I am aware.

To view this discussion on the web visit https://groups.google.com/d/msgid/opencoarrays/c6ca72bb2695f3fb97ae2f75ab0c0c915357fbed.camel%40gmail.com.