it may be because of not using MPI_INIT() before using MPI functions..<br>if possible please upload your code.<br><br>Anuj<br><br><br><div class="gmail_quote">On Wed, Dec 2, 2009 at 5:26 AM, Yen, Joseph <span dir="ltr"><<a href="mailto:Joseph.Yen@jacobs.com">Joseph.Yen@jacobs.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div><font face="Arial" size="2"><span>Hi,</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>I have an mpi c++ code which has been run fine with either lam-mpi and open-mpi. Intel C++ compiler (ver 11) has been used. But I encounter the following error
</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>Attempting to use an MPI routine before initializing MPICH<br>
</span></font></div>
<div><font face="Arial" size="2"><span>when the same code is compiled using mpich-2 (ver 1.2.1) and the same C++ compiler. For your information, I have been working on an AMD machine with SUSE linux OS where all the above experiences
take place.</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>The following is the way I run the mpich2-built code and the above error results.</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>In a linux command prompt,</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>>mpd &</span></font></div>
<div><font face="Arial" size="2"><span>>mpiexec -n 16 mycode myinput</span></font></div>
<div><font face="Arial" size="2"><span>Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
Attempting to use an MPI routine before initializing MPICH<br>
</span></font></div>
<div><font face="Arial" size="2"><span>Your help is greatly appreciated.</span></font></div>
<div><font face="Arial" size="2"><span>Joseph</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div align="left"><font face="Arial" size="2">Joseph Yen, Ph.D.</font></div>
<div align="left"><font face="Arial" size="2">Jacobs Technology</font></div>
<div align="left"><font face="Arial" size="2">Tel: 931-393-6605</font></div>
<div align="left"><font face="Arial" size="2"><a href="mailto:joseph.yen@jacobs.com" target="_blank">joseph.yen@jacobs.com</a></font></div>
<div align="left"> </div>
<div> </div>
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