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📁 空间物理学研究需要有并行的环境
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<TITLE>Making and running an example</TITLE>
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<HR><H2><A NAME="Node7">Making and running an example</a></H2>
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There are sample MPI applications in the   
<tt> MPICH<IMG WIDTH=5 HEIGHT=11 SRC="img4.xbm">
SDK<IMG WIDTH=5 HEIGHT=11 SRC="img5.xbm">
examples<IMG WIDTH=5 HEIGHT=11 SRC="img6.xbm">
nt</tt> directory.  
They can be built with Microsoft Visual Studio 6.x, Visual Fortran 6.x, gcc and g77.  
<P> 
<ol> 
 
1. Open the MSDEV workspace file found in   
<tt> MPICH<IMG WIDTH=5 HEIGHT=11 SRC="img7.xbm">
SDK<IMG WIDTH=5 HEIGHT=11 SRC="img8.xbm">
examples<IMG WIDTH=5 HEIGHT=11 SRC="img9.xbm">
nt<IMG WIDTH=5 HEIGHT=11 SRC="img10.xbm">
examples.dsw</tt>.  
 
<BR> 
2. Build the Debug target of the cpi project.  
 
<BR> 
3. Copy   
<tt> MPICH<IMG WIDTH=5 HEIGHT=11 SRC="img11.xbm">
SDK<IMG WIDTH=5 HEIGHT=11 SRC="img12.xbm">
examples<IMG WIDTH=5 HEIGHT=11 SRC="img13.xbm">
nt<IMG WIDTH=5 HEIGHT=11 SRC="img14.xbm">
basic<IMG WIDTH=5 HEIGHT=11 SRC="img15.xbm">
Debug<IMG WIDTH=5 HEIGHT=11 SRC="img16.xbm">
cpi.exe</tt>   
to a shared directory or to the same place on all the machines in your cluster.    
For example you could copy <tt> cpi.exe</tt> to  
<tt> c:<IMG WIDTH=5 HEIGHT=11 SRC="img17.xbm">
temp<IMG WIDTH=5 HEIGHT=11 SRC="img18.xbm">
cpi.exe</tt> on all the nodes.  
 
<BR> 
4. Open a command prompt and change to the directory where you placed <tt> cpi.exe</tt>.  
 
<BR> 
5. Execute '<tt> MPICH<IMG WIDTH=5 HEIGHT=11 SRC="img19.xbm">
mpd<IMG WIDTH=5 HEIGHT=11 SRC="img20.xbm">
bin<IMG WIDTH=5 HEIGHT=11 SRC="img21.xbm">
mpirun.exe -np 4 cpi</tt>'.  
</ol> 

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