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Installation

How to access the DKRZ Hamburg supercomputer

Get a DKRZ account:
Fill in DKRZ's New User form and select project "mj0143" there.
Then Christian will automatically get a notification for confirmation.
As soon as your account is ready to use, DKRZ will inform you by e-mail.
Login: ssh -Y username@levante.dkrz.de
DKRZ documentation: User portal
DKRZ user support: support@dkrz.de

How to install the inversion code

To create a personal installation of the Jena CarboScope inversion system at the DKRZ Hamburg supercomputer, invoke the script

/home/m/m212046/INVERSION/Install

This will create all necessary directories (as described below), and copy some files needed to run simple examples.
Then follow the instructions printed out by the script.
This will include instructions to run a simple example inversion, to give you a feeling how the system is applied.

Directory structure

The Install script creates the following directory structure:

Directory	Content	Where? (1)	User-specific? (2)
`~/INVERSION/RUN/`	Application-dependent scripts and code	home	yes
`~/INVERSION/RUN/src/`	Application-independent scripts and code	home	yes
`~/INVERSION/DATA/TS.`spec`/`version`/`	Atmospheric input data	work	initially not
`~/INVERSION/STATIONS/`	Station lists	home	yes
`~/INVERSION/PRIORS/`	Prior flux files etc.	work	yes
`~/INVERSION/OUTPUT/`	Location where the output directory of each run will be created	work	yes
`~/INVERSION/REGIONS3/`	Definition files for integration regions	home	initially not
`~/INVERSION/CUTOUT/`	(optional) Definition files for DoI cut-outs for regional inversions	home	initially not
`~/INVERSION/TOOLS/`	(optional) Specific tools	home	yes

Notes:
(1) Files of the inversion system are stored in two different file systems:

Small, original files are stored in the home directory (~, saved with backup, but quota 9 GB).
Large output and data files are stored in the work directory (/work/mj0143/username, more available space, but no backup).

Therefore, two sets of subdirectories exist for each user, set up as identical mirrors by mutual symbolic links.

(2) Most of the directories are specific to each user, but some are initially linked from central directories. If you need own files in any of these directories, remove the respective link and replace it by a new directory of your own.