mirror of https://github.com/BOINC/boinc.git
93 lines
2.5 KiB
PHP
93 lines
2.5 KiB
PHP
<?php
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require_once("docutil.php");
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page_head("FORTRAN applications");?>
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<h2>Windows: cygwin</h2>
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<p>
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Include the file 'boinc_api_fortran.C' in the api/Makefile.am,
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but comment out the 'zip' calls, to avoid the linking with 'libboinc_zip.a'
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<p>
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To link it is necessary to include the 'winmm.dll' library (-lwinmm).
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<h2>Windows: Visual Studio</h2>
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<p><font color=red>2004-06-16 note: this page is outdated; will update
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(functions are now declared <code>extern"C"</code> so
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no C++ mangling is done; there is a boinc_api_fortran.C wrapper) -- quarl@ssl
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</font></p>
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<p>
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Note: a working example similar to the following
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(based on outdated BOINC code) is
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<a href=TestLibs.zip>here</a>; see also its <a href=taufer.txt>README</a>.
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<p>
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Start by creating a new FORTRAN project.
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Add all the FORTRAN specific files,
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then add all the files needed for the BOINC library (e.g. boinc_api.C).
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Make sure that BOINC and the FORTRAN files are compiled
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using the same type of standard libraries.
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i.e. if the BOINC is compiled with the debug multithreaded DLL libraries,
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make sure the FORTRAN files are compiled with the DLL setting.
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<p>
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For every BOINC function you want to call from fortran you must add an
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interface and subroutine:
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<pre>
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INTERFACE
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SUBROUTINE boinc_finish(status)
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END SUBROUTINE boinc_finish
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END INTERFACE
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</pre>
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<p>
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Remember to declare the type of arguments.
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INTEGER status
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<p>
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You must then tell the compiler that the function
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you are interfacing is a C routine.
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You do this by adding the statement:
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<pre>
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!DEC$ ATTRIBUTES C :: boinc_finish
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</pre>
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Because BOINC is compiled as C++ files
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the FORTRAN compiler will not be able to find
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the standard function name in the object file,
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you therefore have to add an alias for
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the function giving the real function name:
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<pre>
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!DEC$ ATTRIBUTES ALIAS : '?boinc_finish@@YAHH@Z' :: boinc__finish
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</pre>
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<p>
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This function name can be found in the object file.
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Go to your compile directory and run dumpbin.
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<pre>
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c:\fortranproject\Release>dumpbin /symbols boinc_api.obj
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</pre>
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this will give you a list of symbols, where you can find the real functionname.
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<p>
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The interface will end up looking like this:
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<pre>
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INTERFACE
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SUBROUTINE boinc_finish(status)
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!DEC$ ATTRIBUTES C :: boinc_finish
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!DEC$ ATTRIBUTES ALIAS : '?boinc_finish@@YAHH@Z' :: boinc__finish
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INTEGER status
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END SUBROUTINE boinc_finish
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END INTERFACE
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</pre>
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You can now call the BOINC function in FORTRAN.
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<pre>
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call boinc_finish(0)
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</pre>
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<?php
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page_tail();
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?>
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