![]() g: GPU-accelerated software, will only run on GPU nodes.r: Restricted access, typically software under license.D: Default module that will be loaded when multiple versions are available.S: Module is sticky, requires -force to unload or purge.To quickly see some of the modules characteristics, module avail will display colored property attributes next to the module names. For the sake of reproducibility, we recommend always specifying the module version you want to load, as defaults may evolve over time. When multiple versions of the same module exist, module will load the one marked as Default (D). For complete reference, please refer to the official Lmod documentation. Restore the state of saved modules from the foo collectionĪdditional module sub-commands are documented in the module help command. Save the state of all loaded modules in a collection named foo Swap a module (unload gcc and replace it with icc) Load a module to use the associated software Search for blas in module names and descriptions The module command supports auto-completion, so you can just start typing the name of a module, and press Tab to let the shell automatically complete the module name and/or version. Given the large diversity of the Sherlock user population, all users are not be interested in the same kind of software, and high-energy physicists may not want to see their screens cluttered with the latest bioinformatics packages. This is to limit the information overload that can result when displaying the full list of available modules. Modules on Sherlock are organized by scientific field, in distinct categories. For instance, the $PATH environment variable might be updated so that appropriate executables for that package can be used. When you load a module, the system will set or modify your user environment variables to enable access to the software package provided by that module. In order to use software installed on Sherlock, you must first load the corresponding software module. The module system is used to manage the user environment and to activate software packages on demand. When you first log into Sherlock, you'll be presented with a default, bare bone environment with minimal software available. It also allows us to provide multiple versions of the same software, that would otherwise conflict with each other, and abstract things from the OS sometimes rigid versions and dependencies. The modules system helps setting up the user's shell environment to give access to applications, and make running and compiling software easier. ![]() Sherlock uses Lmod to manage software installations. This mechanism allows us to provide multiple versions of the same software concurrently, and gives users the possibility to easily switch between software versions. The use of a module system means that most software is not accessible by default and has to be loaded using the module command.
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