# State of LLVM Flang Development

**URL:** <https://fortran-lang.discourse.group/t/state-of-llvm-flang-development/8174>\
**Category:** NVIDIA\
**Created:** [June 10, 2024, 12:28am UTC](https://fortran-lang.discourse.group/t/state-of-llvm-flang-development/8174 "2024-06-10T00:28:52Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![armin](https://avatars.discourse-cdn.com/v4/letter/a/b9e5f3/32.png) [@armin](https://fortran-lang.discourse.group/u/armin)\
**Post date:** [July 4, 2024, 7:15am UTC](https://fortran-lang.discourse.group/t/state-of-llvm-flang-development/8174/21 "2024-07-04T07:15:49Z")

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There is an interesting post by Paul Thomas outlining the history of what now is gfortran: [https://groups.google.com/g/comp.lang.fortran/c/NDE6JKTFbNU/m/BKkb57jKBwAJ](https://groups.google.com/g/comp.lang.fortran/c/NDE6JKTFbNU/m/BKkb57jKBwAJ)

This suggests more like something around 10-15 years for solid f95 support, but I guess the gfortran development is not that straightforward as e.g. for NAG or others.

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**Author:** ![certik](https://yyz2.discourse-cdn.com/free1/user_avatar/fortran-lang.discourse.group/certik/32/4_2.png) [@certik](https://fortran-lang.discourse.group/u/certik)\
**Post date:** [July 4, 2024, 5:02pm UTC](https://fortran-lang.discourse.group/t/state-of-llvm-flang-development/8174/22 "2024-07-04T17:02:27Z")

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Awesome, thanks @armin! And welcome to the forum.

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**Author:** ![certik](https://yyz2.discourse-cdn.com/free1/user_avatar/fortran-lang.discourse.group/certik/32/4_2.png) [@certik](https://fortran-lang.discourse.group/u/certik)\
**Post date:** [September 3, 2024, 9:18pm UTC](https://fortran-lang.discourse.group/t/state-of-llvm-flang-development/8174/23 "2024-09-03T21:18:37Z")

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> [@gak](#):
>
> Quietly started in 2015, I believe. It was two years in when I joined NVIDIA in 2017 to work on Flang (what is now Classic Flang). I believe we didn’t publish that on GitHub until 2017.
> 
> [2017 Reddit post on Flang](https://www.reddit.com/r/linux/comments/6bw856/flang_nvidia_brings_fortran_to_llvm/)

I just found this announcement from November 13, 2015:

> **[NNSA, national labs team with Nvidia to develop open-source Fortran compiler...](https://www.llnl.gov/article/41756/nnsa-national-labs-team-nvidia-develop-open-source-fortran-compiler-technology)**
>
> The U.S. Department of Energy’s National Nuclear Security Administration (NNSA) and its three national labs today announced they have reached an agreement with NVIDIA’s PGI® software to create an open-source Fortran compiler designed for integration...

Which is consistent with your comment. I remember reading it back then, but couldn’t find it recently until now.

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**Author:** ![Steve](https://yyz2.discourse-cdn.com/free1/user_avatar/fortran-lang.discourse.group/steve/32/2541_2.png) [@Steve](https://fortran-lang.discourse.group/u/Steve)\
**Post date:** [September 26, 2024, 5:31am UTC](https://fortran-lang.discourse.group/t/state-of-llvm-flang-development/8174/24 "2024-09-26T05:31:53Z")

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Some history here [https://youtu.be/MqQk5VsPar4?si=huhY4AqOY5AWPEYX](https://youtu.be/MqQk5VsPar4?si=huhY4AqOY5AWPEYX)

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