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Timestamp:
Mar 2, 2007 6:32:25 AM (15 years ago)
Author:
raasch
Message:

documentation update for the new svn-based version and for 3.1c, update of .mrun.config.default, -u in mbuild only compiles scripts

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  • palm/trunk/DOC/app/chapter_3.5.5.html

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    1917<h3 style="line-height: 100%;"><font size="4">3.5.5 Compiling and
    2018linking user-defined code<br>
    2119</font></h3>
    22 <p style="line-height: 100%;">The compiling and linking of
    23 user-defined code into a model run is done via the shellscript
    24 <a
    25  href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html">mrun</a>.
    26 The simplest (however not the most comfortable) way is by giving the
    27 filenames of the files containing the user-defined code as an argument
    28 of the shellscript option <a
    29  href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html#Opt-s">-s</a>.
    30 If the user-defined subroutines are located e.g. on the two files <span
    31  style="font-family: monospace;">user1.f90</span> and <span
    32  style="font-family: monospace;">user2.f90</span>, then
    33 the <b>mrun</b> call has to be:<br>
    34 </p>
    35 <p style="line-height: 100%; margin-left: 40px;"><span
    36  style="font-family: monospace;">mrun... -s "user1.f90 user2.f90" ... .</span><br>
    37 </p>
    38 <p style="line-height: 100%;">For this call the user has to be in the
    39 working directory <tt><tt><font style="font-size: 10pt;" size="2">~/palm/current_version/SOURCE</font></tt></tt>,
    40 because the file with the source code of the main program is located
    41 here. The main program is compiled with
    42 each model run (without the appropriate filename given as argument for
    43 the
    44 option -s). </p>
    45 <p style="line-height: 100%;">The call </p>
    46 <ul>
    47   <pre style="margin-bottom: 0.5cm; line-height: 100%;"><font
    48  style="font-size: 10pt;" size="2">mrun
    49  -s TEST
    50 ,</font></pre>
    51 </ul>
    52 <p style="line-height: 100%;">is simpler and causes the compilation
    53 of all files with suffix <tt><font style="font-size: 10pt;" size="2">.f90</font></tt>
    54 located in the working
    55 directory <font face="Thorndale, serif">a</font>nd having
    56 user write permissions.&nbsp; Unchanged sources of the default model
    57 have read permission only and therefore are not compiled with that
    58 call. </p>
    59 <p style="line-height: 100%;">Typically, users may have different
    60 versions
    61 of user-defined code which are to be used for different model runs.
    62 According to the method just described for starting a certain model
    63 run,
    64 the associated user-defined code would have to be copied into the
    65 working directory and code for other runs may have to be
    66 removed (otherwise theses files would be compiled as well and the
    67 routines like <tt><font style="font-size: 10pt;" size="2">user_actions</font></tt>
    68 would occur twice or several times which would lead to compiling
    69 errors). This procedure is quite tedious and can lead to errors if
    70 different
    71 model runs with restarts are to be carried out at the same time. It is
    72 better
    73 to store the different versions of user-defined code in different
    74 subdirectories
    75 using the base file name of the respective model run as subdirectory
    76 name. In this case a line like </p>
    77 <ul>
    78   <pre style="margin-bottom: 0.5cm; line-height: 100%;"><font
    79  style="font-size: 10pt;" size="2">% </font><a
    80  href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html#add_source_path"><font
    81  style="font-size: 10pt;" size="2">add_source_path</font></a><font
    82  style="font-size: 10pt;" size="2"> $HOME/palm/current_version/SOURCE/USER_CODE/$fname</font></pre>
    83 </ul>
    84 <p style="line-height: 100%;">has to be added to the <b>mrun</b>
    85 configuration file. If you call <b>mrun</b> now with </p>
    86 <ul>
    87   <pre style="margin-bottom: 0.5cm; line-height: 100%;"><font
    88  style="font-size: 10pt;" size="2">mrun -d run1  -s “user1.f90 user2.f90”
    89 ,</font></pre>
    90 </ul>
    91 <p style="line-height: 100%;">the additional entry in the configuration
    92 file
    93 causes that the files given as argument of the option -s are also
    94 looked
    95 for in the directory <tt><font style="font-size: 10pt;" size="2">$HOME/palm/current_version/SOURCE/USER_CODE/run1</font></tt><font
    96  style="font-size: 10pt;" size="2">,</font>
    97 in case they are not found in the current working directory. The
    98 specification of <tt><font style="font-size: 10pt;" size="2">-s</font><font
    99  size="2">
    100 TEST</font></tt> in the <b>mrun</b> call now causes compilation of all
    101 files with suffix <tt><font style="font-size: 10pt;" size="2">.f90</font></tt>
    102 and user write permissions which are located in the working
    103 directory or in the directory indicated by <span
    104  style="font-family: monospace;">add_source_path</span>. In
    105 this case no files with the same name are allowed to be in these two
    106 directories. </p>
    107 <p style="line-height: 100%;">Further detailed information for linking
    108 user-defined code with <b>mrun</b> can be found in <a
    109  href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html#chapter7">chapter
    110 7</a> of the <b>mrun </b>documentation (only in German). </p>
    111 <p style="line-height: 100%;">While programming user-defined code,
     20<p style="line-height: 100%;">Users can add their own (modified) user-interface to a PALM-run by carrying out the following steps:</p><ol><li>Copy the default (empty) user-interface (file<span style="font-family: Courier New,Courier,monospace;"> user_interface.f90</span>) to a directory of your choice, e.g.:<br><br><span style="font-family: Courier New,Courier,monospace;">&nbsp; &nbsp;cd ~/palm/current_version</span><br style="font-family: Courier New,Courier,monospace;"><span style="font-family: Courier New,Courier,monospace;">&nbsp; &nbsp;mkdir -p USER_CODE/example</span><br style="font-family: Courier New,Courier,monospace;"><span style="font-family: Courier New,Courier,monospace;">&nbsp; &nbsp;cp trunk/SOURCE/user_interface.f90&nbsp; USER_CODE/example/user_example.f90</span><br></li><li>Set an additional path in the configuration file<span style="font-family: Courier New,Courier,monospace;"> .mrun.config </span>to allow <span style="font-weight: bold;">mrun </span>to find and include this file:<br><br><span style="font-family: Courier New,Courier,monospace;">&nbsp; &nbsp;%add_source_path&nbsp;&nbsp; $base_directory/USER_CODE/$fname</span><br><br>The default configuration file (<span style="font-family: Courier New,Courier,monospace;">trunk/SCRIPTS/.mrun.config.default</span>) already includes this setting.</li><li>Modify the interface routines according to your needs.</li><li>Start a PALM run by executing<br><br><span style="font-family: Courier New,Courier,monospace;">&nbsp; &nbsp;mrun -d example ...</span><br><br>The file<span style="font-family: Courier New,Courier,monospace;"> user_example.f90 </span>will be automatically compiled within the job and will replace PALM&lsquo;s default user-interface.<br></li></ol>The above method with including<span style="font-family: Courier New,Courier,monospace;"> $fname </span>in
     21the additional source path allows to use different user-interfaces for
     22different runs at the same time. Just store the respective
     23interface-files in subdirectories<span style="font-family: Courier New,Courier,monospace;"> USER_CODE/abcd</span>,<span style="font-family: Courier New,Courier,monospace;"> USER_CODE/cdef</span>, etc. and start <span style="font-weight: bold;">mrun</span> with option &ldquo;<span style="font-family: Courier New,Courier,monospace;">-d abcd</span>&ldquo;, &ldquo;<span style="font-family: Courier New,Courier,monospace;">-d cdef</span>&ldquo;, etc.<br><br><span style="font-weight: bold;">The modified user-interface file cannot be pre-compiled by using mbuild!</span><br><br>While programming user-defined code,
    11224errors are frequently made. Possible ways of error
    113 tracing are described in the next chapter. <br>
     25tracing are described in the next chapter. <br><p style="line-height: 100%;">
    11426&nbsp; </p>
    11527<hr>
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    12430<p style="line-height: 100%;"><i>Last change:&nbsp;</i> 15/04/05 (SR)</p>
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