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 ===== Environment Modules ===== ===== Environment Modules =====
  
-**This page applies only to the new cluster.** +Environment modules allow you to control which software (and which version of that software) is available in your environment. For instance, at the time of writing, the cluster has 4 different version of standard R installed: 3.5.3, 3.6.3, 4.0.5, 4.1.0. When you first log in and try to run R the OS will respond with "command not found". To activate R in your environment you would type:
- +
-Environment modules allow you to control which software (and which version of that software) is available in your environment. For instance the new cluster has 4 different version of standard R installed: 3.5.3 +
-, 3.6.3, 4.0.5, 4.1.0. When you first log in and try to run R the OS will respond with "command not found". To activate R in your environment you would type:+
  
 <code> <code>
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 </code> </code>
  
-There's a shorthand version of the module command: **ml**. To load a module you can use just:+There's a shorthand version of the **module** command: **ml**. To load a module you can use just:
  
 <code> <code>
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-==== Where to Load Modules ====+==== Where run Module Load Commands ====
  
 You have several options as to where to use "module load" commands. You have several options as to where to use "module load" commands.
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 This would generate an error because of the latest version of R already being loaded.  This would generate an error because of the latest version of R already being loaded. 
  
-So, in your script you should unload R before loading the new version.+So, in your script you could unload R before loading the new version.
  
 <code> <code>
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 === Python and Perl === === Python and Perl ===
  
-Since various OS level tools need python and perl there are version of these languages installed system-wide. No module needed. These are python3 (version 3.8.5) and perl (version 5.30.0). You are welcome to use these, but there are also modules with slightly different versions:+Since various OS level tools need python and perl there are versions of these languages installed system-wide. No module needed. These are python3 (version 3.8.5) and perl (version 5.30.0). You are welcome to use these, but there are also modules with slightly different versions:
  
- * python 2.7.18 for older software that requires python2 +  * python 2.7.18 for older software that requires python2 
- * python 3.9.5 +  * python 3.9.5 
- * perl 5.34.0+  * perl 5.34.0
  
 The system-wide python is accessible only as "python3". When a python module is loaded just "python" will start up the relevant version of python.  The system-wide python is accessible only as "python3". When a python module is loaded just "python" will start up the relevant version of python. 
environment_modules.1628001064.txt.gz · Last modified: 2021/08/03 10:31 by root

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