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The operating system of Setonix is CrayOS, which is based on sles15sp2the SUSE Linux Enterprise Server operating system. The supercomputer comes with key software packages optimised by the vendor for the HPE Cray EX architecture. It is accessible through the module system, like any other software installed system-wide; however, the Pawsey staff relies on the vendor for its maintenance.

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Pawsey defines a set of environment variables that may be useful when writing batch scripts or simply interacting with the supercomputer.

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Table 21. Predefined variables that are available when you log into Pawsey supercomputing systems

Variable namePurposeExample values
PAWSEY_CLUSTERHost name of the systemsetonix
PAWSEY_OSCurrent operating systemsles15sp1
PAWSEY_PROJECTDefault project for the userpawsey####, director####
MYSCRATCHDefault /scratch directory for the user/scratch/$PAWSEY_PROJECT/$USER 
MYSOFTWAREDefault /software directory for the user/software/projects/$PAWSEY_PROJECT/$USER 


Note: The Environmental Variable that holds the default project is set at login, by reading the contents of the file $HOME/.pawsey_project .
If you get errors that suggest that your default project is incorrect, you should make sure that the file contains the project name that you wish to be your default

Cray environment variables

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    $ export CRAYPE_LINK_TYPE=static AnchorFilesystemFilesystem