# Do concurrent: not seeing any speedup

**URL:** <https://fortran-lang.discourse.group/t/do-concurrent-not-seeing-any-speedup/9764>\
**Category:** Uncategorized\
**Created:** [May 22, 2025, 5:03am UTC](https://fortran-lang.discourse.group/t/do-concurrent-not-seeing-any-speedup/9764 "2025-05-22T05:03:34Z")\
**Posts on this page:** 1\
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**Author:** ![Shahid](https://yyz2.discourse-cdn.com/free1/user_avatar/fortran-lang.discourse.group/shahid/32/3672_2.png) [@Shahid](https://fortran-lang.discourse.group/u/Shahid)\
**Post date:** [May 22, 2025, 9:26am UTC](https://fortran-lang.discourse.group/t/do-concurrent-not-seeing-any-speedup/9764/9 "2025-05-22T09:26:53Z")

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**gfortran 15** does not seem to be showing speedup. It does not show any local specification error though!.

[GNU Fortran 15.1 has been released - Compilers / GNU - Fortran Discourse](https://fortran-lang.discourse.group/t/gnu-fortran-15-1-has-been-released/9630/12)

A few months ago i checked ifx for windows. Do concurrent was not showing speedup for the windows 10. So seems like **ifx** for linux supports Do concurrent only.

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