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Migration to the new standard environment: Difference between revisions
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Migration to the new standard environment (view source)
Revision as of 20:41, 23 March 2021
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= What are the differences between | = What are the differences between <tt>StdEnv/2020</tt> and the earlier environments? = <!--T:1--> | ||
The differences are discussed in [[Standard software environments]]. | |||
= | = Can I change my default standard environment? = <!--T:2--> | ||
Our clusters use different | Our clusters currently use different <code>StdEnv</code> versions as their default. [[Cedar]] and [[Graham]] use <code>StdEnv/2016.4</code>, while [[Béluga/en|Béluga]] uses <code>StdEnv/2018.3</code>. [[Niagara]] defaults to <code>StdEnv/2018.3</code> when you run <code>module load CCEnv StdEnv</code>. | ||
<!--T:8--> | <!--T:8--> | ||
On April | On April 1, 2021, <code>StdEnv/2020</code> will be the default environment for all clusters. However, you can specify your own default environment by running the following command (example provided for version 2016.4): | ||
{{Command|echo "module-version StdEnv/2020 default" >> $HOME/.modulerc}} | {{Command|echo "module-version StdEnv/2020 default" >> $HOME/.modulerc}} | ||
= Do I need to reinstall/recompile my code | = Do I need to reinstall/recompile my code when the <code>StdEnv</code> changes? = <!--T:3--> | ||
Yes. If you compile your own code, or | Yes. If you compile your own code, or have installed R or Python packages, you should recompile your code or reinstall the packages you need with the newest version of the standard environment. | ||
= How can I use | = How can I use an earlier environment? = <!--T:4--> | ||
If you have an existing workflow and want to continue to use the same software versions you are using now, simply add | If you have an existing workflow and want to continue to use the same software versions you are using now, simply add | ||
module load StdEnv/2018.3 | module load StdEnv/2018.3 | ||
or | or | ||
module load StdEnv/2016.4 | module load StdEnv/2016.4 | ||
to your job | to your job scripts before loading any other modules. | ||
= Will | = Will the earlier environments be removed? = <!--T:5--> | ||
The earlier environments and any software dependent on them will remain available. However, our staff will no longer install anything in the old environments. | |||
= Which environment should I use ? = <!--T:6--> | = Which environment should I use ? = <!--T:6--> | ||
If you are starting a new project, or if you want to use a newer version of | If you are starting a new project, or if you want to use a newer version of an application, you should use <tt>StdEnv/2020</tt> by adding | ||
module load StdEnv/2020 | module load StdEnv/2020 | ||
to your job | to your job scripts. This command does not need to be deleted to use <code>StdEnv</code> after April 1. | ||
= Can I keep the old environment by loading modules in my <code>.bashrc</code> ? = <!--T:7--> | = Can I keep using the old environment by loading modules in my <code>.bashrc</code>? = <!--T:7--> | ||
Loading modules in your <code>.bashrc</code> is '''not recommended'''. Instead, explicitly load modules in your job scripts. | Loading modules in your <code>.bashrc</code> is '''not recommended'''. Instead, explicitly load modules in your job scripts. | ||
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