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| As of May 2016, compiler support for OpenACC is still relatively scarce. Being pushed by [http://www.nvidia.com/content/global/global.php NVidia], through its [http://www.pgroup.com/ Portland Group] division, as well as by [http://www.cray.com/ Cray], these two lines of compilers offer the most advanced OpenACC support. [https://gcc.gnu.org/wiki/OpenACC GNU Compiler] support for OpenACC exists, but is considered experimental in version 5. It is expected to be officially supported in version 6 of the compiler.
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| For the purpose of this tutorial, we use version 16.3 of the Portland Group compilers. We note that [http://www.pgroup.com/support/download_pgi2016.php?view=current Portland Group compilers] are free for academic usage. | | For this tutorial we recommend the [https://developer.nvidia.com/hpc-sdk NVidia HPC] suite of compilers and tools. |
| | On a Compute Canada system this can be loaded with <code>module load nvhpc</code>. |
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