Carbon Data Assimilation Workshop
                             July 17-28 2006


Useful information to get started.
This info will be posted on the workshop website as well.
Thanks,
Jasmin

=================================================================

Workshop website:

     http://www.atmos.berkeley.edu/~inez/MSRI-NCAR_CarbonDA/

=================================================================

NERSC website
     http://www.nersc.gov


Computers available at NERSC:
     Bassi    - IBM SP Power 5
     Jacquard - Linux Opteron Cluster
     DaVinci  - SGI/Linux (visualization)

(all 3 computers use same login/password).


To change password, shell, or repo, use the NIM interface.
     http://nim.nersc.gov

Click on Actions in the top left hand panel.
Changing  your password and/or shell via the NIM interface 
will automatically change your password and/or shell on 
bassi, jacquard and davinci.

It will take a few hours for the changes to propagate 
across the nodes - during this time, you will not be
able to login to the machines above.

If you continue to experience password problems,
call the NERSC Consultants to have your password reset.
Ph:  1-800-66-NERSC or 510-486-8611 (8am-5pm)
or send email to consult@nersc.gov.

---------------------------------------------------------------

Logging in to a NERSC computer.

If you have SSH installed, you can set up a new profile
or use the following command line instructions:
     ssh -X -l userid machine.nersc.gov
 eg: ssh -X -l jasmin davinci.nersc.gov

This will allow display of X-based applications (eg graphics).

Use the command line instruction above on the computers located 
in the library at MSRI.

If you don't have SSH, you can use PuTTY (free ssh client).
   http://www.chiark.greenend.org.uk/~sgtatham/putty/

(Note: Not sure X-based applications will work with PuTTY).

-------------------------------------------------------------------

All codes are located in the Project directory:

     /project/projectdirs/m598

To copy files recursively from the project directory:

     cp -R /project/projectdirs/m598/dirname .

(note the dot at the end of the command above)
The dot means copy to your current working directory.

FOR SPEEDY code: 
If you have difficulty copying the file from
     /project/projectdirs/m598/jjliu
you can copy from the following directory:
     /usr/common/homes/j/jjliu


-------------------------------------------------------------------

On NERSC computers, modules are available to add
software, libraries and compilers to your path.

To list available modules:
     module avail

To add/load a module to your environment:
     module load module_name

eg: 
    on davinci, to load the Intel compiler: module load intel
    on davinci, to load GRADS: module load grads
    on davinci, to load NCVIEW: module load ncview
    on bassi, to load NETCDF libraries: module load netcdf

To see list of  currently loaded modules in your environment:
     module list

-------------------------------------------------------------------

Data Assimilation codes:

     SPEEDY (Kalnay)     - davinci
     DART   (Nychka)     - jacquard
     4DVar  (Baker)      - bassi
     SIPNET (Schimel)    - davinci, jacquard

DART website: http://www.image.ucar.edu/DAReS/DART/

-------------------------------------------------------------------

Exercises: TBA

-------------------------------------------------------------------