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Software environment

Module environment

The software modules are collected in different profiles and organized by functional categories (compilers, libraries, tools, applications,...). The profiles are of two types: “programming” type (base and advanced) for compilation, debugging and profiling activities, and  “domain” type (chem-phys, lifesc, ...) for the production activity. They can be loaded together.

"Base" profile is the default. It is automatically loaded after login and it contains basic modules for the programming activities (ibm, gnu, pgi, cuda compilers, math libraries, profiling and debugging tools,..).

If you want to use a module placed under other profiles, for example an application module, you will have to previously load the corresponding profile:

$ module load profile/<profile name>
$ module load <module name>/<version>

Almost all the softwares on LEONARDO were installed with Spack manager, which loads automatically the possible dependencies, so autoload command is unnecessary.

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$ module list

In order to detect all profiles, categories and modules available on LEONARDO, the command “modmap” is available as for the other clusters. With modmap you can see if the desired module is available and which profile you have to load to use it.

$ modmap -m <module_name> 

 Spack environment

In case you don't find a software you are interested in, you can install it by yourself. 
On LEONARDO we offer the possibility to use the “Spack” environment by loading the corresponding module. Please refer to the dedicated section for instructions on how to exploit it.

Remind that, on LEONARDO (at variance with other CINECA clusters), the default area where Spack directories are created (/cache, /install, /modules, /user_cache) is the $PUBLIC one (described in section Disks and Filesystems).

Production environment

Since LEONARDO is a general purpose system and is used by several users at the same time, long production jobs must be submitted using a queuing system (scheduler). The scheduler guarantees that the access to the resources is as fair as possible. The production environment on LEONARDO Booster partition is based on the SLURM scheduler.

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