NGI CZ:DIRAC for Auger
DIRAC for Auger
We have chosen DIRAC interware as a base underlying software for distributed computing.
Client Installation
Users can install DIRAC client on their local computer. First, they must be registered on the DIRAC portal. Contact me (chudoba@fzu.cz) if you want to be registered. Instructions for client installation are on DIRAC web site
The VO auger specific installation instructions: Create or choose a directory where you want to install the DIRAC software and set it as the current working directory (e.g. mkdir ~/dirac; cd dirac). Download it, change permissions and run it with teh strinng "auger" as a parameter:
wget -np -O dirac-install https://github.com/DIRACGrid/DIRAC/raw/integration/Core/scripts/dirac-install.py --no-check-certificate chmod +x dirac-install ./dirac-install -V auger source bashrc
The next step is to configure the client. You need a valid X509 certificate in a standard place (~/.globus directory)
dirac-proxy-init -x dirac-configure defaults-auger.cfg
Now you can initialize your proxy with auger group and test it:
dirac-proxy-init -g auger_user -M dls /
You should get:
/: auger
Another possibility suitable mostly for test job submission, job monitoring and accounting is to connect to the France Grille DIRAC web server.
Command line interface is also available on ui1.grid.cesnet.cz. Example how to start a session:
# initialisation source /home/chudoba/dirac/bashrc dirac-proxy-init -g auger_user -M
Basic Examples
Initialize the environment and certificate proxy. Then:
# job submission dirac-wms-job-submit auger_basic_test_cesnet.jdl JobID = 29086015 # job status query dirac-wms-job-status 29086015 JobID=29086015 Status=Done; MinorStatus=Execution Complete; Site=LCG.CESNET.cz; # output download dirac-wms-job-get-output -D out 29086015
The JDL file is simillar to gLite JDL files. Only syntax to specify a concrete site via requirements is different. An example for the CESNET site
[chudoba@ui1 dirac]$ cat auger_basic_test_cesnet.jdl Executable = "/bin/sh"; StdOutput = "auger_basic_test.out"; StdError = "auger_basic_test.err"; InputSandbox = {"auger_basic_test.sh"}; OutputSandbox = {"auger_basic_test.err","auger_basic_test.out"}; RetryCount = 3; VirtualOrganisation = "auger"; Arguments = "auger_basic_test.sh 1"; Site = {LCG.CESNET.cz};
For DIRAC Admins
User registration
Each user must be added (registered) to the DIRAC portal. The command must be issued by user with dirac_admin role. Example:
# get dirac admin role dirac-proxy-init -g dirac_admin -M # add a user dirac-admin-add-user -N grubio -D /DC=es/DC=irisgrid/O=ugr/CN=gines.rubio -M grubio@ugr.es -G auger_user
Other possibility is to use the web interface: Applications, Registry Manager, Users. One must have a role dirac_admin. Do not forget to add the new user to the group auger_users (separate step).
Note: the long version of options for user registration did not work (16 march 2015):
dirac-admin-add-user --UserName grubio --UserDN /DC=es/DC=irisgrid/O=ugr/CN=gines.rubio --UserMail grubio@ugr.es --UserGroup auger_user