# Coarray tutorial

**URL:** <https://fortran-lang.discourse.group/t/coarray-tutorial/536>\
**Category:** Uncategorized\
**Created:** [January 3, 2021, 3:43am UTC](https://fortran-lang.discourse.group/t/coarray-tutorial/536 "2021-01-03T03:43:50Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Beliavsky](https://avatars.discourse-cdn.com/v4/letter/b/ba8739/32.png) [@Beliavsky](https://fortran-lang.discourse.group/u/Beliavsky)\
**Post date:** [January 3, 2021, 3:43am UTC](https://fortran-lang.discourse.group/t/coarray-tutorial/536/1 "2021-01-03T03:43:50Z")

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Thomas Koenig [announced](https://groups.google.com/g/comp.lang.fortran/c/Lyq2ozwndbM) on comp.lang.fortran his [coarray tutorial](https://github.com/tkoenig1/coarray-tutorial/blob/main/tutorial.md).

> Since the introduction of the Fortran 2008 standard, Fortran is a parallel language. Unlike the parallel extensions [OpenMP](https://www.openmp.org/) or [OpenACC](https://www.openacc.org/), the coarray parallelism Coarrays is built into the language core, so there no fewer problems with interaction between different standards and different standards bodies.
> 
> This tutorial aims to introduce Fortran coarrays to the general user. A general familiarity with modern Fortran is assumed. People who are not familar, but are familiar with other imperative languages like C might need to refer to other sources such as the [FortranWiki](http://fortranwiki.org/fortran/show/HomePage) to check what individual language constructs mean.

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**Author:** ![Beliavsky](https://avatars.discourse-cdn.com/v4/letter/b/ba8739/32.png) [@Beliavsky](https://fortran-lang.discourse.group/u/Beliavsky)\
**Post date:** [March 2, 2021, 3:57pm UTC](https://fortran-lang.discourse.group/t/coarray-tutorial/536/2 "2021-03-02T15:57:23Z")

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I added links to other [Coarray tutorials](http://fortranwiki.org/fortran/show/Tutorials) and [articles](http://fortranwiki.org/fortran/show/Articles) at the Fortran Wiki. An eye-catching paper is [Cellular automata beyond 100k cores: MPI vs Fortran coarrays](https://cgpack.sourceforge.io/201809/eurompi2018paper.pdf).

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**Author:** ![bfkranm](https://yyz2.discourse-cdn.com/free1/user_avatar/fortran-lang.discourse.group/bfkranm/32/1268_2.png) [@bfkranm](https://fortran-lang.discourse.group/u/bfkranm)\
**Post date:** [June 16, 2022, 12:39pm UTC](https://fortran-lang.discourse.group/t/coarray-tutorial/536/3 "2022-06-16T12:39:56Z")

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The tutorial is very nice, Might there be interest in making it part of a Fortran lesson for [HPC Carpentry](https://www.hpc-carpentry.org/about/)