# Do concurrent in \`gfortran\`

**URL:** <https://fortran-lang.discourse.group/t/do-concurrent-in-gfortran/10979>\
**Category:** GNU\
**Created:** [June 21, 2026, 12:39pm UTC](https://fortran-lang.discourse.group/t/do-concurrent-in-gfortran/10979 "2026-06-21T12:39:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jorgeg](https://yyz2.discourse-cdn.com/free1/user_avatar/fortran-lang.discourse.group/jorgeg/32/6835_2.png) [@jorgeg](https://fortran-lang.discourse.group/u/jorgeg)\
**Post date:** [June 21, 2026, 12:39pm UTC](https://fortran-lang.discourse.group/t/do-concurrent-in-gfortran/10979/1 "2026-06-21T12:39:23Z")

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I am having trouble finding the documentation for the previous flag that was advertised for `do concurrent` with gfortran, the `-ftree-parallelize-loops`. I don’t see any docs about it for GNU 16.

Has anyone tried this or run into something similar? Are they moving towards just doing OpenMP maybe? If anyone knows anything, I’d be keen to know!

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**Author:** ![Tyberius17](https://avatars.discourse-cdn.com/v4/letter/t/ecccb3/32.png) [@Tyberius17](https://fortran-lang.discourse.group/u/Tyberius17)\
**Post date:** [June 25, 2026, 7:27pm UTC](https://fortran-lang.discourse.group/t/do-concurrent-in-gfortran/10979/2 "2026-06-25T19:27:12Z")

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Is this the page you are looking for? [Optimize Options (Using the GNU Compiler Collection (GCC))](https://gcc.gnu.org/onlinedocs/gcc-16.1.0/gcc/Optimize-Options.html#index-ftree-parallelize-loops)

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**Author:** ![jorgeg](https://yyz2.discourse-cdn.com/free1/user_avatar/fortran-lang.discourse.group/jorgeg/32/6835_2.png) [@jorgeg](https://fortran-lang.discourse.group/u/jorgeg)\
**Post date:** [June 25, 2026, 8:53pm UTC](https://fortran-lang.discourse.group/t/do-concurrent-in-gfortran/10979/3 "2026-06-25T20:53:04Z")

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Yes! Damn my browser didn’t want to lead me there…thanks !