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5  <title>PALM chapter 5.0</title><meta name="GENERATOR" content="StarOffice 7  (Win32)">
[5]6  <meta name="AUTHOR" content="Siegfried Raasch">
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16<h2 style="line-height: 100%;"><font size="4">5.0 Installation of the
17model</font></h2>
[41]18<font color="#000000">This chapter
[40]19describes the installation of PALM on a Linux workstation (local host) and a suitable remote computer, on which the
20model runs are to be carried out. The local host is used to
21start batch jobs with <b>mrun</b> and to analyze the results
[41]22which are produced by the model on the remote host and send back to the local host. Alternatively, <span style="font-weight: bold;">mrun</span> can also be used to start PALM on the local host in interactive mode or as a batch job.</font><p style="line-height: 100%;"><font color="#000000"></font></p><p style="line-height: 100%;"><font color="#000000"><span style="font-weight: bold; text-decoration: underline;">Requirements</span></font></p><p style="line-height: 100%;"><font color="#000000">The installation and operation of PALM requires at mimimum (on both, the local and the remote host, unless stated otherwise):</font></p><ol><li><font color="#000000">The AT&amp;T Korn-shell (ksh) must be available under<span style="font-family: Courier New,Courier,monospace;"> </span></font><font style="font-family: Courier New,Courier,monospace;" color="#000000">/bin/ksh</font><font color="#000000">. Most of the current Linux distributions are using the public domain Korn-shell (pdksh). The PALM scripts <span style="font-weight: bold;">mrun</span> and <span style="font-weight: bold;">mbuild</span> do not work with the pdksh! Please replace it by the AT&amp;T ksh. If the AT&amp;T ksh path is different from<span style="font-family: Courier New,Courier,monospace;"> </span></font><font style="font-family: Courier New,Courier,monospace;" color="#000000">/bin/ksh</font><font color="#000000">, please modify the first lines in <span style="font-weight: bold;">mrun</span> and <span style="font-weight: bold;">mbuild</span>, respectively.</font></li><li><font color="#000000">The NetCDF-library with version number not earlier than 3.6.0-p1 (for NetCDF, see under <a href="http://www.unidata.ucar.edu/software/netcdf/">www.unidata.ucar.edu</a>).</font></li><li><font color="#000000">A FORTRAN90/95 compiler.</font></li><li><font color="#000000">The Message Passing Interface (MPI), at least on the remote host, if the parallel version of PALM shall be used.</font></li><li><font color="#000000">On the local host, the revision control system <span style="font-weight: bold;">subversion</span> (see <a href="http://subversion.tigris.org/">subversion.tigris.org</a>).
23This is already included in many Linux distributions (e.g. SuSe). <span style="font-weight: bold;">subversion requires port 3690 to be open for tcp/udp.</span> <span style="font-weight: bold;">If there are firewall restrictions concerning this port, the PALM code cannot be accessed.</span> The
[40]24user needs a permit to access the PALM repository. For getting a permit
25please contact the PALM group (<a href="mailto:raasch@muk.uni-hannover.de">raasch@muk.uni-hannover.de</a>)
26and define a username under which you like to access the repository.
27You will then receive a password which allows the access under this
28name.</font></li><li><font color="#000000">A job queueing system must be available on the remote host. Currently, <span style="font-weight: bold;">mrun</span> can handle LoadLeveler (IBM-AIX) and NQS/PBS (Linux-Clusters, NEC-SX).</font></li><li><font color="#000000">ssh/scp-connections to and from the remote host must not be blocked by a firewall.<br></font></li></ol><font color="#000000"><span style="font-weight: bold;"></span></font><font color="#000000"> Currently, <span style="font-weight: bold;">mrun</span> is configured to be used on a limited number of selected machines. These are IBM-Regatta at computing center HLRN in Hannover (<span style="font-style: italic;">ibmh</span>), Berlin (<span style="font-style: italic;">ibmb</span>), at KISTI, Korea (<span style="font-style: italic;">ibms</span>), at Yonsei University, Seoul (<span style="font-style: italic;">ibms</span>), on NEC-SX6/8 systems at DKRZ, Hamburg (<span style="font-style: italic;">nech</span>) and RIAM, Kyushu University, Fukuoka (<span style="font-style: italic;">neck</span>), as well as on the Linux cluster of IMUK (<span style="font-style: italic;">lcmuk</span>) and Tokyo Institute of Technology (<span style="font-style: italic;">lctit</span>). The strings given in brackets are the systems names under which <span style="font-weight: bold;">mrun</span> indentifies the different hosts. mrun should also work on other systems, but this requires some modifications in the scripts <span style="font-weight: bold;">mrun</span>, <span style="font-weight: bold;">mbuild</span>, and <span style="font-weight: bold;">subjob</span>. Future PALM versions will allow to configure the scripts for different kinds of systems by just using a configuration file.</font><p style="line-height: 100%;"><font color="#000000">The examples given in this chapter refer to an
29installation of PALM on an IMUK Linux workstation and the IBM-Regatta
[5]30system of
[41]31the HLRN used as&nbsp;remote host. They are just called local and remote host from now on. </font></p><p style="line-height: 100%;">
[5]32</p>
33<p style="line-height: 100%;">The installation process requires a valid
[40]34account on the local and on the remote host as well.<br>
[5]35&nbsp; </p>
36<ul>
[41]37  All hosts (local as well as remote) are
[5]38accessed via the secure shell (ssh). The user must establish
39passwordless login using the private/public-key mechanism (see e.g. the
40  <a href="http://www.hlrn.de/doc/ssh/index.html">HLRN documentation</a>).
41  <b>To ensure proper function of mrun, passwordless login must be
42established in both directions, from the local to the remote host as
43well as from the remote to the local host!</b> Test this by carrying
[41]44out e.g. on the local host:
[5]45  <p style="line-height: 100%;"><span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;
[40]46</span><span style="font-family: Courier New,Courier,monospace;">ssh&nbsp; &lt;username on remote host&gt;@&lt;remote IP-address&gt;</span><br>
[5]47  </p>
48  <p style="line-height: 100%;">and on the remote host:<br>
49  </p>
50  <p style="line-height: 100%;"><span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;
[40]51</span><span style="font-family: Courier New,Courier,monospace;">ssh&nbsp; &lt;username on local host&gt;@&lt;local IP-adddress&gt;</span><br>
[5]52  </p>
[41]53  In both cases you should&nbsp;not be
[5]54prompted for a password. <b>Before continuing the further installation
55process, this must be absolutely guaranteed!</b> This must also be
[41]56guaranteed for <b>all</b> other remote hosts, on which PALM shall run.
[5]57</ul>
[40]58<p style="line-height: 100%;"></p><p style="line-height: 100%;"><span style="font-weight: bold; text-decoration: underline;">Package Installation</span></p><p style="line-height: 100%;">In the <b>first installation step</b> a
[5]59set of directories must be created both on the local and on the
[40]60remote host. These directories are:</p><div style="margin-left: 40px; font-family: Courier New,Courier,monospace;">~/job_queue<br></div><div style="margin-left: 40px; font-family: Courier New,Courier,monospace;">~/palm<br></div><div style="margin-left: 40px; font-family: Courier New,Courier,monospace;">~/palm/current_version<br></div><div style="margin-left: 40px;"><span style="font-family: Courier New,Courier,monospace;">~/palm/current_version/JOBS</span><br></div><p style="line-height: 100%;">The names of these directories are
[5]61freely selectable (except <tt><font size="2">~/job_queue</font></tt>),
62however new users should use them as suggested, since many
63examples in this documentation as well as all example files are
[40]64assuming these settings. The directory <span style="font-family: monospace;">~/palm/current_version</span> on the local host will be called the working directory from now on. </p>
[5]65<p style="line-height: 100%;"><font color="#000000">In the <b>second
[40]66step</b>
67a working copy of the recent version of the PALM software package,
68including the source code, scripts, documentation, etc.&nbsp; must be
[44]69copied to the working directory (</font><font color="#000000">local
70host!) by executing the following
71commands. Replace &lt;your username&gt; by the name that you choosed to
72access the repository, and &lt;#&gt; by any of the available PALM
73releases, e.g. "<span style="font-style: italic;">3.1c</span>" (new releases will be anounced by email to the PALM mailing list).</font></p><div style="margin-left: 40px;"><span style="font-family: Courier New,Courier,monospace;">cd ~/palm/current_version</span><br style="font-family: Courier New,Courier,monospace;"><span style="font-family: Courier New,Courier,monospace;">svn checkout --username &lt;your username&gt; svn://130.75.105.45/palm/tags/release-&lt;#&gt;</span><br></div><p style="line-height: 100%;"><font color="#000000">You will then be prompted for your password. After finishing, the subdirectory</font><font style="font-family: Courier New,Courier,monospace;" color="#000000"> trunk </font><font color="#000000">should
[40]74appear in your working directory. It contains a number of further
[44]75subdirectories which contain e.g. the PALM source code (</font><font style="font-family: Courier New,Courier,monospace;" color="#000000">SOURCE</font><font color="#000000">) and the scripts for running PALM (</font><font style="font-family: Courier New,Courier,monospace;" color="#000000">SCRIPTS</font><font color="#000000">).</font></p><p style="line-height: 100%;">Alternatively,&nbsp;executing</p><pre style="line-height: 100%; margin-left: 40px; font-family: Courier New,Courier,monospace;">svn checkout --username &lt;your username&gt; svn://130.75.105.45/palm/tags/release-&lt;#&gt; abcde</pre><p style="line-height: 100%;">will place your working copy in a directory named<span style="font-family: Courier New,Courier,monospace;"> abcde </span>instead of a directory named<span style="font-family: Courier New,Courier,monospace;"> trunk</span>. But keep in mind that you will have to adjust several paths given below, if you do not use the default directory<span style="font-family: Courier New,Courier,monospace;"> trunk</span>.</p><p style="line-height: 100%;">Please never touch any file in your working copy of PALM, unless you&nbsp;know exactly what you are doing.</p><p style="line-height: 100%; font-weight: bold;"><span style="font-weight: normal;">You can also get a copy of the most recent code by executing</span></p><pre style="line-height: 100%; margin-left: 40px; font-family: Courier New,Courier,monospace;">svn checkout --username &lt;your username&gt; svn://130.75.105.45/palm/trunk trunk</pre>However, this version may contain bugs and new features may not be documented. <span style="font-weight: bold;">In future PALM releases, repository access to this most recent&nbsp;version will
76probably be restricted to the PALM developers.</span><p style="line-height: 100%;"><font color="#000000"></font></p><p style="line-height: 100%;"><font color="#000000"><span style="font-weight: bold; text-decoration: underline;">Package Configuration</span></font></p><p style="line-height: 100%;"><font color="#000000">To
[40]77use the PALM scripts, the PATH variable has to be extended and the
78environment variable PALM_BIN has to be set (on local and remote host)
[41]79in the respective profile of the users default shell (e.g. in<span style="font-family: Courier New,Courier,monospace;"> .profile</span>, if<span style="font-family: Courier New,Courier,monospace;"> ksh </span>is used):</font></p><p style="line-height: 100%; margin-left: 40px;"><font style="font-family: Courier New,Courier,monospace;" color="#000000">export PATH=$HOME/palm/current_version/trunk/SCRIPTS:$PATH</font><font color="#000000"><br><span style="font-family: Courier New,Courier,monospace;">export PALM_BIN=</span></font><font style="font-family: Courier New,Courier,monospace;" color="#000000">$HOME/palm/current_version/trunk/SCRIPTS</font></p><p style="line-height: 100%;"><font color="#000000">You may habe to login again in order to activate these settings.</font></p><font color="#000000">On the local and on the remote host, some small helper/utility programs have to be installed, which are e.g. later used by <span style="font-weight: bold;">mrun</span> or for PALM data postprocessing. The installation is done by <span style="font-weight: bold;">mbuild</span>. This script requires a configuration file<span style="font-family: Courier New,Courier,monospace;"> .mrun.config</span>, which will be also used by <span style="font-weight: bold;">mrun</span> in the following. A copy has to be put into the working directory under the name<span style="font-family: Courier New,Courier,monospace;"> .mrun.config </span>by</font><p style="line-height: 100%; margin-left: 40px;"><font color="#000000"><span style="font-family: Courier New,Courier,monospace;">cp trunk/SCRIPTS/.mrun.config.default .mrun.config</span></font></p><font color="#000000">Beside many other things, this file contains typical installation parameters
[40]80like compiler name, compiler options, etc.
[41]81for a set of different remote hosts. Please edit this file, uncomment lines like</font><div style="margin-left: 40px; font-family: Courier New,Courier,monospace;">#%remote_username &nbsp;&lt;replace by your ... username&gt; &nbsp; &lt;remote-computer-shortcut&gt;</div><p style="line-height: 100%;"><font color="#000000">by removing the first hash (<span style="font-family: Courier New,Courier,monospace;">#</span>) character and replace the string "<span style="font-family: Courier New,Courier,monospace;">&lt;replace by ...&gt;</span>" by your username on the respective host given in the <span style="font-family: Courier New,Courier,monospace;">&lt;remote-computer-shortcut&gt;</span>. You only have to uncomment lines for those hosts on which you intend to use PALM.</font></p><p style="line-height: 100%;"><font color="#000000">After modifying the configuration file, the respective executables are generated by executing</font></p><p style="line-height: 100%; margin-left: 40px; font-family: Courier New,Courier,monospace;"><font color="#000000">mbuild -u -h lcmuk<br>mbuild -u -h ibmh</font></p><p style="line-height: 100%;"><font color="#000000">The second call also copies the PALM scripts like <span style="font-weight: bold;">mrun</span> and <span style="font-weight: bold;">mbuild</span> to the remote host.</font></p><p style="line-height: 100%;"><font color="#000000"></font></p><p style="line-height: 100%;"><font color="#000000"><span style="font-weight: bold; text-decoration: underline;">Pre-Compilation of PALM Code</span></font></p><font color="#000000">
[40]82</font>
[41]83<br><font color="#000000">To avoid the
[5]84re-compilation of the complete source code for each model run, PALM
[40]85willl be pre-compiled once on the remote host by again using the script <span style="font-weight: bold;">mbuild</span>. Due to the use of
[5]86FORTRAN modules in the source code, the subroutines must be compiled
[40]87in a certain order. Therefore the so-called <i>make</i> mechanism
[5]88is used (see the respective man-page of the Unix operating system),
[40]89requiring a<span style="font-family: Courier New,Courier,monospace;"> </span></font><font style="font-family: Courier New,Courier,monospace;" color="#000000">Makefile</font><font color="#000000">,
90in which the dependencies are described. This file is found in subdirectory <span style="font-family: Courier New,Courier,monospace;">trunk/SOURCE<span style="font-family: Times New Roman,Times,serif;">, where also the PALM code is stored</span></span>. The compiled sources (object
[5]91files) are
[40]92stored&nbsp;on the remote computer in the default directory
[41]93</font><font style="font-family: Courier New,Courier,monospace;" color="#000000">~/palm/current_version/MAKE_DEPOSITORY</font>.<font color="#000000"><span style="font-weight: bold;"></span></font><p style="line-height: 100%;"><font color="#000000">The
[40]94pre-compilation for the remote host (here the IBM-Regatta of HLRN) is done by</font><span style="font-family: monospace;"></span></p><div style="margin-left: 40px;"><span style="font-family: Courier New,Courier,monospace;">mbuild -h ibmh&nbsp;&nbsp;</span></div><p style="line-height: 100%;"><span style="font-family: Courier New,Courier,monospace;">mbuild
95</span>will prompt some queries<font color="#000000">, which must all be
96answered "y" by the user. The compiling process </font><font color="#000000">will take some time.<span style="font-family: Courier New,Courier,monospace;"> </span></font><font style="font-family: Courier New,Courier,monospace;" color="#000000">mbuild</font><font color="#000000"><span style="font-family: Courier New,Courier,monospace;"> </span>transfers the respective compiler calls to the remote
[5]97host where they are carried out interactively. You can follow the
98progress at the terminal window, where also error messages
99are displayed (hopefully not for this standard installation). By just
[41]100entering </font></p><p style="line-height: 100%;">
[5]101</p>
[40]102<blockquote style="line-height: 100%; font-family: Courier New,Courier,monospace;"><font color="#000000">mbuild</font></blockquote>
[5]103<p style="line-height: 100%;"><font color="#000000">PALM will
104be (consecutively) pre-compiled for all remote hosts listed in
[40]105the configuration file. If you want to compile for the local host only, please enter</font></p><p style="line-height: 100%; margin-left: 40px;"><font color="#000000"><span style="font-family: Courier New,Courier,monospace;">mbuild -h lcmuk</span> </font>
[5]106</p>
[41]107<p style="line-height: 100%;"><font color="#000000"></font></p><p style="line-height: 100%; font-weight: bold; text-decoration: underline;"><font color="#000000">Installation Verification</font></p><font color="#000000">As a last step,
[5]108after the compilation has been finished, the PALM installation has to
109be verified. For this
110purpose a simple test run is carried out. This once again requires the <b>mrun
[40]111</b>configuration file (described in </font><a href="chapter_3.2.html"><font color="#000080">chapter
1123.2</font></a><font color="#000000">), as well as the </font><a href="http://www.muk.uni-hannover.de/%7Eraasch/PALM_group/INSTALL/example_p3d"><font color="#000080">parameter
113file</font></a><font color="#000000"> (described in </font><a href="chapter_4.4.html"><font color="#000080">chapter
1144.4</font></a>)<font color="#000000">. The parameter file must be
115copied from the PALM working copy by<br>
[41]116</font>
[40]117<div style="margin-left: 40px;"><span style="font-family: monospace;"></span><font style="font-family: Courier New,Courier,monospace;" color="#000000">mkdir -p JOBS/example/INPUT<br>cp trunk/INSTALL/example_p3d&nbsp;JOBS/example/INPUT/example_p3d</font><font color="#000000"><span style="font-family: Courier New,Courier,monospace;"></span></font></div>
[5]118<p style="line-height: 100%;"><font color="#000000">The test run can
[40]119now be started by executing the command </font>
[5]120</p>
[40]121<pre style="margin-left: 1cm; margin-right: 1cm; margin-bottom: 0.5cm; line-height: 100%; font-family: Courier New,Courier,monospace;"><font color="#000000">mrun -d example -h ibmh -K parallel -X 8 -T 8 -t 500 -q cdev -r &ldquo;d3# pr#&rdquo;</font></pre>
[41]122<font color="#000000">This specific run
[5]123will be carried out on 8 PEs and is allowed to use up to 500 seconds
124CPU time. After pressing &lt;return&gt;, the most important settings of
125the job are displayed at the terminal window
[40]126and the user is prompted for o.k. (&ldquo;</font><font style="font-family: Courier New,Courier,monospace;" color="#000000">y</font><font color="#000000">&rdquo;). Next, a message of the queuing system like &ldquo;<i>Request</i> &hellip;
127<i>Submitted to queue&hellip; by&hellip;&rdquo; </i>should be displayed. Now the job is
128queued and either started immediately or at a later time, depending on the
[5]129current workload of the remote host. Provided that it is executed
130immediately and that all things work as designed, the job protocol of
[40]131this run will appear under the file name<span style="font-family: Courier New,Courier,monospace;"> </span></font><font style="font-family: Courier New,Courier,monospace;" color="#000000">~/job_queue/ibmh_example</font><font color="#000000"><span style="font-family: Courier New,Courier,monospace;"> </span>no more than a few minutes later. The content of this
[41]132file should be carefully examined for any error messages.</font><p style="line-height: 100%;">
[5]133</p>
[40]134
135
[5]136<p style="line-height: 100%;">Beside the job protocol and according to
137the configuration file and arguments given for <b>mrun</b>
[40]138options<span style="font-family: Courier New,Courier,monospace;"> -d </span>and<span style="font-family: Courier New,Courier,monospace;"> -r</span><tt>,</tt>further files should be found in
[5]139the
[40]140directories</p><div style="margin-left: 40px; font-family: Courier New,Courier,monospace;">~/palm/current_version/JOBS/example/MONITORING</div><p style="line-height: 100%;">and</p>
[5]141<p style="line-height: 100%;"><span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;
[40]142</span><span style="font-family: Courier New,Courier,monospace;">~/palm/current_version/JOBS/example/OUTPUT</span><span style="font-family: monospace;"></span><br>
[5]143</p>
144<p style="line-height: 100%;">Please compare the contents of file</p>
145<p style="line-height: 100%;"><span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;
[40]146</span><span style="font-family: Courier New,Courier,monospace;">~/palm/current_version/JOBS/example/MONITORING/ibmh_example_rc</span><br>
[5]147</p>
[41]148<p style="line-height: 100%;">with those of the example result file which can be found under<span style="font-family: Courier New,Courier,monospace;"> trunk/INSTALL/example_rc</span>., e.g. by using the<span style="font-family: Courier New,Courier,monospace;"><span style="font-family: Times New Roman,Times,serif;"> standard</span> diff </span>command:</p><p style="line-height: 100%; margin-left: 40px; font-family: Courier New,Courier,monospace;">diff &nbsp;JOBS/example/MONITORING/ibmh_example_rc trunk/INSTALL/example_rc</p><p style="line-height: 100%;">where it is assumed that your working directory is<span style="font-family: Courier New,Courier,monospace;"> ~/palm/current_version</span>.</p><span style="font-weight: bold;">You should not find any difference between these two files</span>, except of the run date and time displayed at the top of the file header. <font color="#000000">If
[5]149the file contents are identical, the installation is successfully
[41]150completed.</font>
[5]151<p style="line-height: 100%;">If you have any problems with the PALM
152installation, the members of the PALM working group are pleased to
153help you. &nbsp; </p>
154<hr>
[40]155<p style="line-height: 100%;"><font color="#000080"><font color="#000080"><a href="chapter_4.6.html"><font color="#000080"><img src="left.gif" name="Grafik1" align="bottom" border="2" height="32" width="32"></font></a><a href="Inhaltsverzeichnis.html"><font color="#000080"><img src="up.gif" name="Grafik2" align="bottom" border="2" height="32" width="32"></font></a><a href="chapter_5.1.html"><font color="#000080"><img src="right.gif" name="Grafik3" align="bottom" border="2" height="32" width="32"></font></a></font></font></p>
156<p style="line-height: 100%;"><i>Last change:&nbsp;</i> 02/03/07 (SR) </p>
157</body></html>
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