| 1 | Frequently Asked Questions
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| 2 |
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| 3 | -- Latest revision : 12/03/2009 --
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| 4 | -- See also Delphes website:
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| 5 | -- http://www.fynu.ucl.ac.be/users/s.ovyn/Delphes/faq.html
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| 6 |
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| 7 |
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| 8 | (Q) Delphes complains that data/DataCardDet.dat is not found.
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| 9 | (A) In more recent version of the code (>1.4beta) the default names have been changed to DetectorCard.dat.
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| 10 | Similarly, trigger cards are now called TriggerCard.dat
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| 11 |
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| 12 |
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| 13 | (Q) May I run the convertor stage independently before running Delphes?
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| 14 | (A) Yes, you can convert your generator-level input files, by running the 'Convertors_Only' executable:
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| 15 | me@mylaptop:~$ ./Convertors_Only
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| 16 | Usage: ./Convertors_Only input_file output_file
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| 17 | input_list - list of files in Ntpl, StdHep of LHEF format,
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| 18 | output_file - output file.
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| 19 | me@mylaptop:~$ ./Convertors_Only TEST.list converted.root
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| 20 |
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| 21 |
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| 22 | (Q) I did not create a LHCO output file when I ran Delphes (FLAG_lhco=0). Can I do this on my ROOT output file?
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| 23 | (A) The LHCO output file can be easily created out-of your Delphes ROOT output file, by running the 'LHCO_Only' executable:
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| 24 | me@mylaptop:~$ ./LHCO_Only
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| 25 | Usage: ./LHCO_Only input_file [runlog_file]
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| 26 | input_file - file in Delphes root format,
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| 27 | [runlog_file] - the corresponding log file (optional)
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| 28 | me@mylaptop:~$ ./LHCO_Only test.root
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| 29 |
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| 30 | (Q) I did not run the triggers when I ran Delphes (FLAG_trigger=0). Can I reprocess this on my output file?
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| 31 | (A) There is no problem to re-run the trigger on a Delphes output-file. Just run the 'Trigger_Only' executable:
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| 32 | me@mylaptop:~$ ./Trigger_Only
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| 33 | Usage: ./Trigger_Only input_file output_file [detector_card] [trigger_card]
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| 34 | input_file - file in Delphe root format,
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| 35 | trigger_card - Datacard containing the trigger algorithms (optional)
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| 36 | me@mylaptop:~$ ./Trigger_Only test_without_trigger.root test_with_trigger.root data/mydetector.dat data/mytrigger.dat
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| 37 |
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| 38 | (Q) I do not remember how to run FROG
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| 39 | (A) Just run the "frog" executable in Utilities/FROG
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| 40 | me@mylaptop:~$ cd Utilities/FROG
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| 41 | me@mylaptop:~$ ./frog
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| 42 |
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| 43 |
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| 44 | (Q) How should I know which external libraries I need for FROG ?
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| 45 | (A) Please refer to this page on the FROG website:
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| 46 | http://projects.hepforge.org/frog/Visualization.html
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| 47 | you will need OpenGL, GLUT, X11-devel, Curl. For instance:
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| 48 | OpenGL :
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| 49 | xorg-x11-Mesa-libGL-6.8.2-1.EL.33.0.2
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| 50 | xorg-x11-Mesa-libGLU-6.8.2-1.EL.33.0.2
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| 51 | GLUT :
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| 52 | freeglut-2.2.0-14
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| 53 | freeglut-devel-2.2.0-14
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| 54 | X11-devel :
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| 55 | xorg-x11-devel-6.8.2-1.EL.33.0.2
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| 56 | CURL :
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| 57 | libcurl
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| 58 |
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| 59 |
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| 60 | (Q) FROG complains that libcurl is missing. What should I do?
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| 61 | (A) First, make sure the libcurl library is installed on your computer.
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| 62 | - locate it on your computer
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| 63 | me@mylaptop:~$ locate libcurl.so
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| 64 | /usr/lib/libcurl.so
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| 65 | - if the library is not present, take it from the internet (http://curl.haxx.se/) or via installers like "apt-get" (ubuntu systems) or "yum" (fedora systems)
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| 66 | - if the libcurl.so is not found, juste make a symbolic link in Utilities/FROG/Lib:
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| 67 | me@mylaptop:~$ cd Utilities/FROG/Lib
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| 68 | me@mylaptop:~$ ln -s /usr/lib/libcurl.so
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| 69 | me@mylaptop:~$ ls -l libcurl.so
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| 70 | lrwxrwxrwx 1 me me 21 Jan 7 15:19 libcurl.so -> /usr/lib/libcurl.so.4.0.1
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| 71 | - now it should work properly
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| 72 |
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| 73 | (Q) (fixed) there are many lines printed at the end of the run of Delphes. Is it an error?
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| 74 | 55555 D0
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| 75 | - 20000 D0
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| 76 | - - 3000 (detId=900000000 Name=Delphes)
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| 77 | - - - 3000 (detId=910000000 Name=Tracker)
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| 78 | - - - - 41040 (detId=9100010)
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| 79 | - - - - 41040 (detId=9100020)
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| 80 | - - - - 41040 (detId=9100030)
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| 81 | - - - - 41040 (detId=9100040)
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| 82 | ...
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| 83 | (A) no, this is normal, this is just the output of FROG, showing that everything is ok.
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| 84 | You should find your *vis and *geom files when it has ended.
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| 85 |
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