Monte Carlo Resources

Here you will find information about MC related computing and data storage issues.

MC Computing

Generation and digitization of MC data is a very computing time consuming process. Reconstruction of these data is usually less time consuming. This has some consequences:

• It is strictly forbidden to mass produce MC data on the HERA-B analysis farm (hb-afnn)! As the name implies, this farm shall only be used for data analysis jobs. Any identified MC mass production job will be killed without mercy.
• As of today, the following computing resources are available for MC mass production:
  • the SLT farm at DESY Hamburg
  • the 4LT farm at DESY Hamburg
  • the farm at Bologna
  • the farm at Siegen
  If you have a request for MC mass production, prepare the job and fill it into the queue at one of these sites.

MC Data Storage

All mass produced MC data is stored on tape at DESY HH. Distinct tape pools are used for 2002, 2000, and earlier data. These are accessed through the following symbolic paths:

/acs/mc5	2002/2003 analysis (new)
/acs/mc4	2002/2003 analysis (closed)
/acs/mc3	2000 analysis
/acs/mc2	?? analysis
/acs/mc	?? analysis

Please follow the naming conventions for directories and files when putting data into the pools.