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Timestamp:
Mar 13, 2007 2:52:40 AM (18 years ago)
Author:
raasch
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  • palm/trunk/DOC/app/chapter_3.1.html

    r54 r62  
    11<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
    2 <html>
    3 <head>
    4   <meta http-equiv="CONTENT-TYPE"
    5  content="text/html; charset=windows-1252">
    6   <title>PALM chapter 3.1</title>
    7   <meta name="GENERATOR" content="StarOffice 7  (Win32)">
    8   <meta name="AUTHOR" content="Marcus Oliver Letzel">
    9   <meta name="CREATED" content="20040806;13565279">
    10   <meta name="CHANGED" content="20040806;13575492">
    11   <meta name="KEYWORDS" content="parallel LES model">
    12 </head>
    13 <body dir="ltr" lang="de-DE">
    14 <h3 style="line-height: 100%;">3.1 Job control with mrun</h3>
    15 <p style="line-height: 100%;">The start of model runs in principle
    16 takes place via executing the shell script <a
    17  href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html">mrun.</a>
     2<html><head>
     3<meta http-equiv="CONTENT-TYPE" content="text/html; charset=windows-1252"><title>PALM
     4chapter 3.1</title> <meta name="GENERATOR" content="StarOffice 7 (Win32)"> <meta name="AUTHOR" content="Marcus Oliver Letzel"> <meta name="CREATED" content="20040806;13565279"> <meta name="CHANGED" content="20040806;13575492"> <meta name="KEYWORDS" content="parallel LES model"></head>
     5
     6<body style="direction: ltr;" lang="de-DE"><h3 style="line-height: 100%;">3.1 Job control with mrun</h3>
     7<p style="line-height: 100%;">The start of model runs in
     8principle
     9takes place via executing the shell script <a href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html">mrun.</a>
    1810With this script it is possible to operate the model both
    1911interactively and in batch mode. Batch operation is possible on the
    … …  
    2315described, because this represents the usual mode of operation due to
    2416the large computing time requirements of the model. The interactive
    25 execution differs only in some points and is described in <a
    26  href="chapter_3.6.html">chapter
     17execution differs only in some points and is described in <a href="chapter_3.6.html">chapter
    27183.6</a>. </p>
    28 <p style="line-height: 100%;">By the call of <b>mrun </b>a complete
     19<p style="line-height: 100%;">By the call of <b>mrun
     20</b>a complete
    2921batch job is produced, transferred to the user determined remote
    3022computer
    … …  
    3224After processing of the job, the so-called job protocol is sent back
    3325to the local computer of the user (the local computer is the
    34 computer, on which the user calls <b>mrun</b>). The following actions
     26computer, on which the user calls <b>mrun</b>). The
     27following actions
    3528are implemented by the job, amongst other: </p>
    36 <ul>
    37   <li>
    38     <p style="margin-bottom: 0cm; line-height: 100%;">Change to a
    39 temporary working directory. </p>
    40   </li>
    41   <li>
    42     <p style="margin-bottom: 0cm; line-height: 100%;">The input files
     29<ul> <li> <p style="margin-bottom: 0cm; line-height: 100%;">Change to a
     30temporary working directory. </p> </li> <li> <p style="margin-bottom: 0cm; line-height: 100%;">The input
     31files
    4332needed by the model are copied into this directory. These files are
    44 transferred from the local computer. </p>
    45   </li>
    46   <li>
    47     <p style="margin-bottom: 0cm; line-height: 100%;">Execute the
    48 model. </p>
    49   </li>
    50   <li>
    51     <p style="margin-bottom: 0cm; line-height: 100%;">Copy the output
     33transferred from the local computer. </p> </li> <li>
     34<p style="margin-bottom: 0cm; line-height: 100%;">Execute
     35the
     36model. </p> </li> <li> <p style="margin-bottom: 0cm; line-height: 100%;">Copy the
     37output
    5238files produced by the model into the directories determined by the user
    5339(these are also allowed to lie on the local computer). Depending on the
    5440choice of the user, the files may also be saved on an archiving system
    55 (if existing). </p>
    56   </li>
    57   <li>
    58     <p style="margin-bottom: 0cm; line-height: 100%;">Delete the
    59 temporary working direction. </p>
    60   </li>
    61   <li>
    62     <p style="line-height: 100%;">Transfer the job protocol to the
    63 local computer. </p>
    64   </li>
    65 </ul>
    66 <p style="line-height: 100%;">From this list it becomes clear that two
    67 of the substantial functions of <b>mrun</b> are the supply of input
     41(if existing). </p> </li> <li> <p style="margin-bottom: 0cm; line-height: 100%;">Delete the
     42temporary working direction. </p> </li> <li> <p style="line-height: 100%;">Transfer the job protocol to the
     43local computer. </p> </li>
     44</ul><p style="line-height: 100%;">From this list it
     45becomes clear that two
     46of the substantial functions of <b>mrun</b> are the supply
     47of input
    6848files for the model and the storage of output files produced by the
    6949model. The model exclusively works with so-called local files, which
    70 lie in the temporary working directory created by <b>mrun.</b> The
    71 “local” names of these files are determined by the model
     50lie in the temporary working directory created by <b>mrun.</b>
     51The
     52&ldquo;local&rdquo; names of these files are determined by the
     53model
    7254(in the appropriate OPEN instructions). In <a href="chapter_3.4.html">chapter
    73553.4</a> all possible input and output filenames are specified. In
    … …  
    7759stored there. The directory names are arbitrary. The actual file name
    7860(without path) of these input and output files is specified by an
    79 option of <b>mrun</b>. All input and output files of the model
    80 receive this file name (e.g. <i>abcde</i>), but each individual file
    81 is still provided with an extension (e.g. <i>abcde_par</i>, etc.
    82 <i>abcde_dat</i>) - otherwise the files would not be distinguishable.
     61option of <b>mrun</b>. All input and output files of the
     62model
     63receive this file name (e.g. <i>abcde</i>), but each
     64individual file
     65is still provided with an extension (e.g. <i>abcde_par</i>,
     66etc.
     67<i>abcde_dat</i>) - otherwise the files would not be
     68distinguishable.
    8369The linkage of local file names with the names of the permanent
    8470directories and the file name extensions takes place in a
    85 configuration file, which <b>mrun</b> expects to find in the
     71configuration file, which <b>mrun</b> expects to find in
     72the
    8673respective current working directory of the user. A detailed
    8774description of this configuration file - which still offers a variety
    88 of further functions – is found in the
    89 documentation of the shell script <a
    90  href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html">mrun</a>
     75of further functions &ndash; is found in the
     76documentation of the shell script <a href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html">mrun</a>
    9177(sorry: this is only available in German, so far. If you think that you
    9278would profit from an English version, please give a message to the PALM
    … …  
    9480In the next chapter a simple example of a minimum configuration file
    9581is described. </p>
    96 <p style="line-height: 100%;">A simple call of <b>mrun</b> could read
     82<p style="line-height: 100%;">A simple call of <b>mrun</b>
     83could read
    9784as follows: </p>
    98 <ul>
    99   <p style="line-height: 100%;"><tt>mrun - h <i>ibmh</i> -d <i>abcde</i></tt></p>
    100 </ul>
    101 <p style="line-height: 100%;">The model is started by option -<tt>h
    102 <i>ibmh</i></tt> on the IBM Regatta hanni at the HLRN, i.e. on the
     85<ul> <p style="line-height: 100%;"><tt>mrun -
     86h <i>ibmh</i> -d <i>abcde</i></tt></p>
     87</ul><p style="line-height: 100%;">The model is
     88started by option -<tt>h
     89<i>ibmh</i></tt> on the IBM Regatta hanni at the
     90HLRN, i.e. on the
    10391local computer a batch job is generated, transferred to the remote
    10492computer (IBM) and submitted to a suitable queue of the queuing system.
    10593With the
    106 option <tt>-d</tt> the so-called basis file name (<i>abcde</i>) is
     94option <tt>-d</tt> the so-called basis file name (<i>abcde</i>)
     95is
    10796specified, from which, together with the path names and file name
    10897extensions, the complete file names (including the path) of the
    109 permanent input and output files are <font color="#000000">formed.</font><font
    110  color="#800000">
     98permanent input and output files are <font color="#000000">formed.</font><font color="#800000">
    11199</font>Usually the specification of a set of further options is
    112100necessary, e.g. the CPU time needed by the model and the memory size
    113101needed as well as, on parallel computers, the number of processing
    114 elements which are to be used (options <tt>-t</tt>, <tt>-m</tt> and
    115 <tt>-X</tt>). A precondition for the call of <b>mrun</b> of course is
     102elements which are to be used (options <tt>-t</tt>, <tt>-m</tt>
     103and
     104<tt>-X</tt>). A precondition for the call of <b>mrun</b>
     105of course is
    116106that the installation of the model on the local computer and the
    117107remote machine is complete (see <a href="chapter_5.0.html">chapter
    1181085.0</a>). </p>
    119109<p>Beyond these options a variety of further options for model
    120 steering can be used in the call of <b>mrun</b>. These are fully
    121 described in the <a
    122  href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html">mrun</a>
     110steering can be used in the call of <b>mrun</b>. These are
     111fully
     112described in the <a href="http://www.muk.uni-hannover.de/institut/software/mrun_beschreibung.html">mrun</a>
    123113documentation (in German). <br>
    124114&nbsp; </p>
    125 <hr>
    126 <p><a href="chapter_3.0.html"><font color="#000080"><img src="left.gif"
    127  name="Grafik1" align="bottom" border="2" height="32" width="32"></font></a><a
    128  href="index.html"><font color="#000080"><img src="up.gif"
    129  name="Grafik2" align="bottom" border="2" height="32" width="32"></font></a><a
    130  href="chapter_3.2.html"><font color="#000080"><img src="right.gif"
    131  name="Grafik3" align="bottom" border="2" height="32" width="32"></font></a></p>
    132 <p><i>Last change:&nbsp;</i> 14/04/05 (SR)</p>
    133 </body>
    134 </html>
     115<hr><p><a href="chapter_3.0.html"><font color="#000080"><img src="left.gif" name="Grafik1" align="bottom" border="2" height="32" width="32"></font></a><a href="index.html"><font color="#000080"><img src="up.gif" name="Grafik2" align="bottom" border="2" height="32" width="32"></font></a><a href="chapter_3.2.html"><font color="#000080"><img src="right.gif" name="Grafik3" align="bottom" border="2" height="32" width="32"></font></a></p>
     116<p><i>Last change:&nbsp;</i>$Id$</p>
     117</body></html>
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