#acl ClamsUserGroup:read,write,delete,revert All:read

= New usage model on JSC supercomputers =
From December 2018 onwards, JURECA and other supercomputers have a new usage model.
Since May 2021 the jicg11 project has been terminated. please use clams-esm on JUWELS.

Details are explained [[ http://www.fz-juelich.de/ias/jsc/EN/Expertise/Supercomputers/NewUsageModel/NewUsageModel_node.html | here]].

For the projects clams-esm and IEK-7 this means the following changes:

 * There are no multiple accounts for the same user anymore
 * The username for access to JURECA/JUWELS has been changed to <lastname><number> for all projects (clams-esm, JICG11 and the IEK7)
 * User and group access management is handled through the site [[ https://dspserv.zam.kfa-juelich.de/judoor/ |JUDOOR]]. You need to press the "agree" to the Usage agreement here.
 * the old ssh key should still work.
 * the old HOME filesystems are now located under /p/project/cjicg11/jicg11xx and /p/project/ciek-7/icg1yy. '''Do not copy the old $HOME data to the new $HOME as there is limited space. Instead, you may set a link to the project directory'''.
 * The ERA-Interim data are now located at /p/fastdata/slmet/slmet111/met_data/ecmwf/era_interim/nc/hybrid/.  To have the access right you need to join the project SIMLAB-CLIMATE (slmet). Contact Lars Hoffmann (l.hoffmann@fz-juelich.de) for that purpose.
 * When running a job script, you have to specify the project name to which the CPU hours are allocated by adding the line '''#SBATCH --account=clams-esm'''  or '''#SBATCH --account=icg1''' in the top script lines.
 * CLaMS programs that use e.g. the dynamic NetCDF library need to be re-compiled with updated Makefiles / mkincl
 * potentially .profile and .bashrc commands need to be transferred to $HOME/.bash_profile, especially for '''module load''' commands that may be preformed automatially at the login.
 * the old filesystem $WORK has been replaced by $SCRATCH (/p/scratch/cjicg11/jicg11xx or /p/scratch/ciek-7/icg1yy) that still contains the old data. The project specific environment variables can be set by e.g. '''jutil env activate -p cjicg11'''.   Please use obvious personalized directory names on the top level. '''Suggested new directory names would be /p/scratch/cjicg11/<username>''', but you can of course use the old directory names jicg11xx ([[http://www.fz-juelich.de/SharedDocs/FAQs/IAS/JSC/EN/JUST/FAQ_00_File_systems.html?nn=1765192|more info on filesystems]])
 * MESSy-CLaMS / Mercurial:
   * copy/move .hgrc to new home directory
   * copy/move .ssh/config and ssh-keys from old home directory to the new one
   * MESSy-CLaMS can be recompiled without any changes  
To forward ssh-key access conditions from your local machine  to the JURECA/JUWELS session you may connect with the option '''-A''' i.e. typing '''ssh -A -X <username>@jureca.fz-juelich.de'''. This is helpful, e.g. to connect to a foreign gitlab server.