<p>We are facing another problem, <br>whenever we try to run mpirun command (which was working perfectly before) we get this error:</p>
<div><em><font color="#333333">usr/local/bin/mpdroot: open failed for root's mpd conf filempdtrace (__init__ 1190): forked process failed; status=255</font></em></div>
<p><font color="#333333"><font color="#000000">is it anything to do with mpich? how can we undo it?</font></font></p>
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<div class="gmail_quote">On Tue, Apr 21, 2009 at 9:12 PM, Dave Goodell <span dir="ltr"><<a href="mailto:goodell@mcs.anl.gov">goodell@mcs.anl.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">There are two problems here. �The first is that you do not have an .mpd.conf file setup. �Doing what mpd tells you to do when you run it will fix this.<br>
<br>The second is that you are trying to run mpd as root. �This is possible and supported, but not really recommended unless you know what you are doing. �See section 5.1.6 of the MPICH2 Installer's Guide [1] for help with running mpd as root.<br>
<br>-Dave<br><br>[1] <a href="http://www.mcs.anl.gov/research/projects/mpich2/documentation/files/mpich2-1.0.8-installguide.pdf" target="_blank">http://www.mcs.anl.gov/research/projects/mpich2/documentation/files/mpich2-1.0.8-installguide.pdf</a>
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<div class="h5"><br><br>On Apr 21, 2009, at 10:18 AM, Ankush Kaul wrote:<br><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">After installing mpich2 according to the steps given in the README file it asks to test using<br>mpd &<br>
mpdtrace<br>mpdallexit<br><br>mpd & gives output :<br>[2] 21367<br>[root@ccomp2 etc]# configuration file /etc/mpd.conf not found<br>A file named .mpd.conf file must be present in the user's home<br>directory (/etc/mpd.conf if root) with read and write access<br>
only for the user, and must contain at least a line with:<br>MPD_SECRETWORD=<secretword><br>One way to safely create this file is to do the following:<br>�cd $HOME<br>�touch .mpd.conf<br>�chmod 600 .mpd.conf<br>and then use an editor to insert a line like<br>
�MPD_SECRETWORD=mr45-j9z<br>into the file. �(Of course use some other secret word than mr45-j9z.)<br><br>and mpdtrace gives error :<br>/usr/local/bin/mpdroot: open failed for root's mpd conf filempdtrace (__init__ 1190): forked process failed; status=255<br>
<br>this is the forst time i am doing a project in linux clustering n cant figure out What is the problem here?<br></blockquote><br><br></div></div></blockquote></div><br>