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<DIV dir=ltr align=left><SPAN class=306314900-15022008><FONT face=Arial
color=#0000ff size=2>Is it possible that the user's path on the slave points to
an mpd that was not installed by root? In that case, the mpdroot file
will not have the setuid root bit set, and mpd will not be able to read
/etc/mpd.conf.</FONT></SPAN></DIV>
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color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=306314900-15022008><FONT face=Arial
color=#0000ff size=2>Rajeev</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> owner-mpich-discuss@mcs.anl.gov
[mailto:owner-mpich-discuss@mcs.anl.gov] <B>On Behalf Of </B>Gaetano
Bellanca<BR><B>Sent:</B> Thursday, February 14, 2008 5:25 PM<BR><B>To:</B>
mpich-discuss@mcs.anl.gov<BR><B>Subject:</B> [MPICH] Problems with
mpd<BR></FONT><BR></DIV>
<DIV></DIV>Hi,<BR><BR>I'm trying to set-up mpich2 (last version) on a linux
cluster (ubuntu gutsy) and I'm having some problems using root mpd from a
normal user. I'm following the tests indicated in the manual, and everything
is fine using mpd as a normal user.<BR><BR>Running mpd at boot from root, when
I'm on the server machine, a normal user is able to run mpiexec -n 1 hostname
getting the correct hostname answer.<BR><BR>On the slave machine, on the
contrary, it results with the following
message:<BR><BR>/opt/mpich2/1.0.6p1/intel10.1/bin/mpdroot: open failed for
root's mpd conf filempiexec_cluster3 (__init__ 1190): forked process failed;
status=255<BR><BR>It seems to be a problem relevant to the /etc/mpd.conf file.
But this file is the same I have on the server (with same
permissions).<BR><BR>The command is executed regularly on the slave machine
with sudo mpiexec -n 1 hostname.<BR><BR>Could it be a problem relevant to the
fact that, the mpich2 directory is mounted from the server via
nfs?<BR><BR>Regards.<BR><BR>Gaetano<BR><X-SIGSEP>
<P></X-SIGSEP>
<HR>
<TT>Gaetano Bellanca - Department of Engineering - University of Ferrara
<BR>Via Saragat, 1 - 44100 - Ferrara -
ITALY
<BR>Voice (VoIP): +39 0532 974809 Fax: +39
0532 974870<BR><A href="mailto:gaetano.bellanca@unife.it"
eudora="autourl">mailto:gaetano.bellanca@unife.it</A> <BR>
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