05/25/00   10:15 PM EDT


         PHENIX VRDC Production Iteration #12 - FAQs about DSTs
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      FAQs answered here:  (click to jump to a desired section)

      Q1. How many reconstructed events are available, in how many files,
           and of what types?

      Q2. Where are the DST files?

      Q3. How do I utilize these DST files?

      Q4. Is the quality of these files assured?

      Q5. Under what conditions were these events reconstructed?






Q1. How many reconstructed events are available, in how many files, and of what types? o Central arm only. o Includes signal-mixed, but no pure signal. o For a more extensive summary, see Tarun, Indrani's, and Naoki's web pages, referenced from my main Analysis Resources page. [The QUICK SUMMARY is under construction.] o NOTE: PLEASE READ this message about Iteration 012, from Jeff Mitchell. It details the LUXOR configuration.
Q2. Where are the DST files? o All DST files can be found in the HPSS, under /home/phnxreco/vrdc/dst012 (Use my HPSS Inventory to conveniently inspect this area.) You can also access the inventory from unix: cd ~tlthomas/HPSS-inventory o The DSTs are also already available ON DISK...! --> see /phenix/data05/phnxreco/vrdc/dst012/ It's the same file hierarchy as in HPSS.
o One needs to understand at least the basics of the file naming conventions to make sense of these files. Here is my 12/21/99 posting to off-l defining this, and here's an example usage of the naming scheme. The iteration 12 DST files have a prefix of DST012.
Q3. How do I utilize these DST files? o Pick which ones you want to analyze. (Assuming you understand about the naming conventions...) The correspondence between the "Standard Name" of a file and the internal conditions of the file is presently established using the so-called "MDC2 Extension", which has been removed from the DST file names. To learn about or select based on the internal conditions of these VRDC simulation results, please make use of my "DataBasette" files, which can be found in the top path of the HPSS inventory: ~tlthomas/HPSS-inventory/PRDF-DataBasette.txt and " / " /DST012-DataBasette.txt These files contain a list of Standard Names and the corresponding Extensions that are part of the PRDF files but have not been included in the name of the DST files. For example, if you want to identify all AuAu files that have a Z vertex of -15 cm, you might say: grep 'nv15' PRDF-DataBasette.txt o NOTE: These "DataBasettes" will be replaced eventually by a combination of simulation and production data bases. o FINALLY, refer to the various tutorial resources listed on my main Analysis Resources page to learn how to create analysis programs and run them. (And if you learn of new resources, please let me know so I can add links to them.)
Q4. Is the quality of these files assured? --> Jeff Mitchell has utilized these files and claims they are in fine shape.
Q5. Under what conditions were these events reconstructed? o FIRST: PLEASE READ this message about Iteration 012, from Jeff Mitchell. It details the LUXOR configuration. o The "Setup": unsetenv ONLINE_MAIN; unsetenv OFFLINE_MAIN setenv ONLINE_MAIN /afs/rhic/phenix/oncs/R2.6.2a/online_distribution source /opt/phenix/bin/phenix_setup.csh -v pro
(More detailed config info than this (e.g., MD5 checksums of ASCII text database files and rootcint macros used, etc.) is stored in the log files of each farm job and will not be documented here. Ask me if you want to know more.) o For iteration 12, the CRS farm ran from 5/6,13:59 thru 5/10,12:59. The frozen library versions used were these: ONLINE LIBRARIES: R2.6.2a ; see this page for more details. OFFLINE LIBRARIES: 'pro', built on '05/02/00, 14:08' (no tag declared.) Here is the Tinderbox build record... select the middle link, called: "momchil@rcas2018.rcf.bnl.gov#linux:pro". (Here is the "brief build log." All the errors indicated there are inconsequential for Iteration 12.) SIMULATION LIBRARY: [the "Saint Patty's Day library"] /afs/rhic/phenix/PHENIX_LIB/simulation/pro/i386_linux61/lib/ : -rwxr-xr-x 1 maguire rhphenix 2382345 Mar 17 15:59 libPISARoot.so