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2  <html>  <html>
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6     <title>viaCVS</title>     <title>viaCVS</title>
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9    
10  <center>  <center>
11  <h2>  <h2>
12  Hardware/software requirements</h2></center>  Hardware/software requirements</h2></center>
13    This page summarises computer system requirements for using MITgcm in a
14    <a href=../online_documents/manual/sarch.html#fig:mitgcm_architecture_goals>
15  <p>MITgcm has been designed to run efficiently on a wide range of computer  range of scenarios</a> that spans simulations on a desktop PC to simulations
16  platforms. This is made possible by its WRAPPER interface which  run on a high-end supercomputer.&nbsp; The side bar on the left contains
17  largely insulates the 'under the hood stuff' from the user.  links to sites from which third party software and hardware, which you
18  <p>MITgcm also runs on a single PC and PC clusters.  may require, can be obtained. The text below and the
19  <p>The minimum you require to run the model is a PC running linux and a  <a href=../online_documents/index.html target=mainFrame>online document</a> explain
20  FORTRAN compiler.  in what situations&nbsp; you will need these items. In many cases the software
21  <p>.............  you need will already be installed on your computer system and you can
22  <p>Once you have your computer set up, go here to download the model.  go straight ahead and <a href=../getting_started/index.html target=mainFrame>start using</a> the model.
23  <br>  <p><b>MITgcm</b>
24  <hr WIDTH="100%">  <ul>
25  <table CELLSPACING=0 CELLPADDING=0 WIDTH="100%" NOSAVE >  <li>
26  <tr NOSAVE>  runs on a wide <a href=../online_documents/manual/targethw.html>range of computer systems.</a></li>
27  <td NOSAVE>Last modified on $Date$</td>  
28    <li>
29  <td>  includes special software (called <a href=../online_documents/manual/wrapper.html>WRAPPER</a>)
30  <div align=right>CVS:  /u/gcmpack/mitgcm.org/sealion/download_software/viaCVS.html,v  to support efficient execution and relatively easy portablity.</li>
31  $Revision$</div>  </ul>
32  </td>  <b>Platforms where MITgcm is run regularly include</b>
33  </tr>  <ul>
34  </table>  <li>
35    PC's ( both Intel and AMD processor based) running Linux.</li>
36  </body>  
37  </html>  <li>
38    Unix workstations from Sun, SGI, HP, IBM, Compaq.</li>
39    
40    <li>
41    Unix based PC and workstation clusters.</li>
42    
43    <li>
44    high-end symetric multi-processor systems.</li>
45    </ul>
46    
47    <ul>Under the WRAPPER, code also runs very efficiently on high-end vector
48    processing systems, if you have one.</ul>
49    <b>The minimum you require to run the model is</b>
50    <ul>
51    <li>
52    a computer runing a Unix style operating system.</li>
53    
54    <li>
55    a Fortran 77, Fortran 90 or Fortran 95 compiler.</li>
56    
57    <li>
58    a C compiler.</li>
59    </ul>
60    <b>To run parallel configurations you also need either</b>
61    <ul>
62    <li>
63    a system that supports multi-threaded programs.</li>
64    
65    <li>
66    a system with an implementation of the MPI&nbsp;library installed.</li>
67    </ul>
68    
69    <ul>Specialized communication software to optimizes performance on a specific
70    platform can also be introduced into the WRAPPER.</ul>
71    <b></b>
72    <p><br><b>Once you have your computer set up</b>
73    <blockquote>go here to download the model. The full distribution (including
74    examples with input datasets and sample output) is around 50MB. Instructions
75    on estimating the computing resource requirements (CPU time, memory usage
76    and disk space) for a set of numerical experiments can be found here.</blockquote>
77    
78    <hr WIDTH="100%">
79    <table CELLSPACING=0 CELLPADDING=0 WIDTH="100%" NOSAVE >
80    <tr NOSAVE>
81    <td NOSAVE>Last modified on $Date$</td>
82    
83    <td>
84    <div align=right>CVS:  /u/gcmpack/mitgcm.org/sealion/download_software/viaCVS.html,v
85    $Revision$</div>
86    </td>
87    </tr>
88    </table>
89    
90    </body>
91    </html>
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