Last version:
FLUKA 2021.2.2, September 25th 2021
(last respin )
flair-2.3-0b 30-Jul-2021


-- Fluka Release
( 25.09.2021 )

FLUKA 2021.2.2 has been released.
Fluka Release 30.07.2021 FLUKA 2021.2.1 has been released.
Fluka Major Release 18.05.2021 FLUKA 2021.2.0 has been released.
Congratulations from INFN: ,
Dear Paola,
I wish to congratulate you and all the authors and collaborators for this new Fluka release, which looks at the future and confirms the support of INFN in the development and continuous improvement of this code.
best regards
Diego Bettoni
INFN Executive Committee

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Installation procedure here

All Fluka releases have a numbering scheme like:

	Fluka<major revision>.<minor revision&ht;<patch level>(.respin) *

,where <major revision> is usually the year that major revision has been developed, <minor revision> is a number like 1,2,..., and the patch level is a letter like b,c,... .
Releases differing in patch level only are supposed to differ because of bug fixes only or small feature additions.
Respin numbers simply indicate whether a given version has been redistributed with minor changes like changing a dimension parameter, changes/fixes in some databases, curing obvious problems

top directory:

         fluka2021.manual manual, ascii version

         FM.pdf           manual, pdf version
         CERN-2005-10.pdf official reference	

         libflukahp.a     compiled library with all Fluka routines

         example.inp      example input in various formats

         random.dat       random number seed

         sigmapi.bin      datafiles

             lfluka       script to link Fluka (contains help) 
                          or auxiliary programs
             ldpmqmd      script to link Fluka with RQMD-2.4 and DPMJET-3
             ldpm2qmd     script to link Fluka with RQMD-2.4 and DPMJET-2.53
             rfluka       script to run Fluka  (contains help)
             fff          script to compile single routines 
             ustsuw.f     program to sum data files from USRTRACK option
                          and compute statistics
             usxsuw.f     program to sum data files from USRBDX   option
                          and compute statistics
             usysuw.f     program to sum data files from USRYIELD option
                          and compute statistics
             usbsuw.f     program to sum data files from USRBIN   option
                          and compute statistics
             usrsuw.f     program to sum data files from RESNUCLE option
                          and compute statistics
             usrsuwev.f   program to sum data files from RESNUCLE option,
                          compute statistics, and evolve for given
                          irradiation and decay times the radioactive
             all Fluka include files
             fortran user routines

Usage notes:

       to change the user routines and link :
          user routines are for source definition, biasing and scoring 
          purposes (see the manual for details)
          all user routines contains some parts that cannot be changed
          (mainly include directives). They must be linked with
           flukapro/ include files and with static option. The
           flutil/fff  script makes this authomatically.
           User routines can be either inserted in the libflukahp library
          (strongly discouraged) or linked as standalone obj files or
           inserted in a user library

           flutil/lfluka links from libflukahp and optional obj files
                         if no -m (main) option is given, it can be
                         used to link different programs.
                         To link the default run excutable
                                flutil/lfluka -m fluka

           lfluka -h     explains input parameters.

 ***>>>    all script files contain a top directory definition (FTOP)
           that must be properly set before usage. For most of them
           it suffices that the user defines an environmental variable
           FLUPRO pointing to the directory where the distribution tar
           file has been opened
        to run Fluka
           the flutil/rfluka script creates a work subdirectory
           to run Fluka, sets the appropriate logical links, 
           and runs the program for a user-defined numbers of
           runs, each time writing the last random seed of the run, to
           be used as first seed by the next run, and 
           copying back the output files to the parent directory.
           output and data files will have names of the form
           <input><run number>.out      and
           <input><run number>_<data file name>   
           where <data file name >  is the one specified in the
           OPEN card of the input file (mandatory on HPUX-9,
           optional on VMS, Linux, Compaq TrueUnix, IBM/AIX and HPUX-10
           where a default for###, fort.### or ftn### unit
           is opened)

           rfluka -h     explains input parameters.

 ***   before running : if the electromagnetic
             part is swiched on , a "pemf file" is no longer
             required. Look at the release-notes and the manual for
             further details

 ***   after :

        auxiliary programs are needed to read, sum and analyze binary 
        or formatted data files. An example is provided for binary
        I.e. program ustsuw creates a binary sum file <output file>
        an ascii summary file <output file>_sum.lis, and an ascii
        compact file suitable for further automatic processing
        <output file>_tab.lis

Last updated: 18th of May, 2021

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