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<HR><H2><A NAME="Node55">mpirun options don't work</a></H2>
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Q) Why doesn't the mpirun option do what the help pages say it shoud do?  
<P> 
 A) mpirun options must be specified before the name of the executable.  Any options   
specified after the executable will be passed as arguments to the executable and not parsed as   
mpirun options.  For example: <tt> mpirun -np 5 myapp.exe -machinefile filename</tt> will not use   
the machine file specified by <tt> filename</tt> because mpirun considers this an argument   
to the application.  
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