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<DIV dir=ltr align=left><SPAN class=985593714-01062007><FONT face=Arial
color=#0000ff size=2>Probably something is not right on the networking setup on
the two machines. To debug the problem, you can use the mpdcheck utility as
described in the installation guide.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=985593714-01062007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=985593714-01062007><FONT face=Arial
color=#0000ff size=2>Rajeev</FONT></SPAN></DIV><BR>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<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>Cavey,
Lester<BR><B>Sent:</B> Friday, June 01, 2007 8:39 AM<BR><B>To:</B>
mpich-discuss@mcs.anl.gov<BR><B>Subject:</B> [MPICH] Failed to ping mpd on
client<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal style="mso-layout-grid-align: none"><FONT
face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">I can run mpd on machine1
alone, and on machine2 alone, but I get an error when I have mpd running on
machine2 and I enter the command 'mpdboot -n 2 -f /etc/mpd.hosts' on
machine1.<SPAN style="mso-spacerun: yes"> </SPAN>The error message is
'Failed to ping mpd on machine2.'.<SPAN style="mso-spacerun: yes">
</SPAN>I can ping machine1 from machine2, and I can ping machine2 from
machine1.<SPAN style="mso-spacerun: yes"> </SPAN>I have the machines
listed in /etc/hosts (which also lists their IP addresses and aliases) and in
/etc/mpd.hosts .<SPAN style="mso-spacerun: yes"> </SPAN>I am using Red
Hat Enterprise 5 on each of the i386 machines.<SPAN
style="mso-spacerun: yes"> </SPAN>Any ideas on what is causing the
error?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">Thanks,</SPAN></FONT><SPAN
style="mso-no-proof: yes"><o:p></o:p></SPAN></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">Lester</SPAN></FONT><SPAN
style="mso-no-proof: yes"><o:p></o:p></SPAN></P>
<P class=MsoNormal><FONT face="Times New Roman" size=2><SPAN
style="FONT-SIZE: 11pt; mso-no-proof: yes"><SPAN
style="mso-bidi-font-size: 12.0pt"> <o:p></o:p></SPAN></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">Lester
Cavey<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">Test
Engineer</SPAN></FONT><FONT size=3><SPAN
style="FONT-SIZE: 12pt; mso-no-proof: yes"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">ATK <st1:place
w:st="on">Mission</st1:place> Systems</SPAN></FONT><SPAN
style="mso-no-proof: yes"><o:p></o:p></SPAN></P>
<P class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><FONT
face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">8560 Cinderbed
Road</SPAN></FONT></st1:address></st1:Street><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">,
700</SPAN></FONT><SPAN style="mso-no-proof: yes"><o:p></o:p></SPAN></P>
<P class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><FONT face=Arial
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">Newington</SPAN></FONT></st1:City><FONT
face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">, <st1:State
w:st="on">VA</st1:State> <st1:PostalCode
w:st="on">22122</st1:PostalCode></SPAN></FONT></st1:place><SPAN
style="mso-no-proof: yes"><o:p></o:p></SPAN></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">703-339-6500,
x189</SPAN></FONT><SPAN style="mso-no-proof: yes"><o:p></o:p></SPAN></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof: yes">Lester.Cavey@atk.com</SPAN></FONT><SPAN
style="mso-no-proof: yes"><o:p></o:p></SPAN></P>
<P class=MsoNormal><FONT face="Times New Roman"
size=2><o:p> </o:p></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>