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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=928230219-14082008>Hi,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=928230219-14082008> Yes, the problem is with the networking
configuration of the machines involved in your MPI job (If the networking
configuration of the machines are correct you should at least be able to ping
each machine from the other). You should contact your system administrator to
make sure that the networking configuration of the machines are
correct.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=928230219-14082008></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=928230219-14082008>Regards,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=928230219-14082008>Jayesh</SPAN></FONT></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Qi Zhu [mailto:zhuqi.jeffrey@gmail.com]
<BR><B>Sent:</B> Thursday, August 14, 2008 1:54 PM<BR><B>To:</B> Jayesh
Krishna<BR><B>Subject:</B> Re: [mpich-discuss] FW: How to use MPICH2 to run a
MPI application across two Windows XP machines?<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>Hi, Jayesh,</DIV>
<DIV> </DIV>
<DIV>Thanks for your advice.</DIV>
<DIV>I tried ping from machine1 to machine3, however, it doesn't work. </DIV>
<DIV>But I can ping from machine1 to machine2. </DIV>
<DIV>Also I cannot check the status of smpd of machine3 from machine1.</DIV>
<DIV>Does it mean I need to do some ip configuration work?</DIV>
<DIV>Thanks. <BR><BR> </DIV>
<DIV><SPAN class=gmail_quote>On 8/14/08, <B class=gmail_sendername>Jayesh
Krishna</B> <<A href="mailto:jayesh@mcs.anl.gov">jayesh@mcs.anl.gov</A>>
wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2><SPAN>Hi,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN> Can
you ping from each machine to its peers (machine1 ping to 2/3 , machine2 to
1/3, machine3 to 1/2)? Can you check the status of smpd on the remote peers
from each machine (as before, smpd -status machine2 & smpd -status
machine3 from machine1 and so on...)</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2><SPAN></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2><SPAN>Regards,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2><SPAN>Jayesh</SPAN></FONT></DIV><BR>
<DIV lang=en-us dir=ltr align=left>
<HR>
<FONT face=Tahoma size=2><SPAN class=q><B>From:</B> Qi Zhu [mailto:<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:zhuqi.jeffrey@gmail.com"
target=_blank>zhuqi.jeffrey@gmail.com</A>] <BR></SPAN><B>Sent:</B> Thursday,
August 14, 2008 11:34 AM
<DIV><SPAN class=e id=q_11bc21bb0d2be972_3><BR><B>To:</B> Jayesh
Krishna<BR><B>Subject:</B> Re: [mpich-discuss] FW: How to use MPICH2 to run a
MPI application across two Windows XP
machines?<BR></SPAN></DIV></FONT><BR> </DIV>
<DIV><SPAN class=e id=q_11bc21bb0d2be972_5>
<DIV></DIV>
<DIV>Hi, Jayesh,</DIV>
<DIV> </DIV>
<DIV>Thanks for your information. They are very helpful.</DIV>
<DIV>However, although I tried with IP address to connect to machine3, it
still failed with the same error message.</DIV>
<DIV>Maybe I should provide more detailed information here:</DIV>
<DIV> </DIV>
<DIV>machine1 IP: 12.111.***.**</DIV>
<DIV>machine2 IP: 12.111.***.**</DIV>
<DIV>machine3 IP: 12.112.***.**</DIV>
<DIV> </DIV>
<DIV>The thing is that I can run my application across machine 1 & 2.
</DIV>
<DIV>However, I cannot make it with machine 1 & 3 or machine 2 &
3.</DIV>
<DIV>Is that because machine 3 uses a different default gateway?</DIV>
<DIV>I really appreciate your help. </DIV>
<DIV>Thanks a lot.<BR> </DIV>
<DIV><SPAN class=gmail_quote>On 8/14/08, <B class=gmail_sendername>Jayesh
Krishna</B> <<A onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:jayesh@mcs.anl.gov" target=_blank>jayesh@mcs.anl.gov</A>>
wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2><SPAN>Hi,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2><SPAN> Try specifying ipaddresses instead of hostnames (Also I
would recommend using the "-machinefile" option available with mpiexec --
See the window's developer's guide for details).</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2><SPAN></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2><SPAN>Regards,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff
size=2><SPAN>Jayesh</SPAN></FONT></DIV><BR>
<DIV lang=en-us dir=ltr align=left>
<HR>
<FONT face=Tahoma size=2><B>From:</B> Qi Zhu [mailto:<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:zhuqi.jeffrey@gmail.com"
target=_blank>zhuqi.jeffrey@gmail.com</A>] <BR><B>Sent:</B> Thursday, August
14, 2008 8:46 AM<BR><B>To:</B> Jayesh Krishna<BR><B>Subject:</B> Re:
[mpich-discuss] FW: How to use MPICH2 to run a MPI application across two
Windows XP machines?<BR></FONT><BR> </DIV>
<DIV><SPAN>
<DIV></DIV>
<DIV>Hi, Jayesh,</DIV>
<DIV>Thanks very much for your email. </DIV>
<DIV>I followed your suggestions and succeeded in two of my machines, which
is great !</DIV>
<DIV>However, when I am trying to get another machine involved, the same
problem appears.</DIV>
<DIV> </DIV>
<DIV>Here is my detailed description. If I run, </DIV>
<DIV>mpiexec -hosts 2 machine1 machine2 myapp.exe, it succeeds.</DIV>
<DIV> </DIV>
<DIV>However, if I run, </DIV>
<DIV>mpiexec -hosts 2 machine1 machine3 myapp.exe, it fails due to the same
error message.</DIV>
<DIV> </DIV>
<DIV>All of the 3 machines are in the same domain. </DIV>
<DIV>At the same time, I have the same passphrase for MPICH2 on 3
machines. </DIV>
<DIV>Do you think this is something because of the IP address? </DIV>
<DIV>Or maybe I am supposed to do some configuration about the credentials
on each machine? </DIV>
<DIV>Thanks a lot. </DIV>
<DIV> </DIV>
<DIV><SPAN class=gmail_quote>On 8/13/08, <B class=gmail_sendername>Jayesh
Krishna</B> <<A onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:jayesh@mcs.anl.gov" target=_blank>jayesh@mcs.anl.gov</A>>
wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV>
<P><FONT size=2> Hi,<BR> The error message says that the job
launcher, mpiexec, was not able to contact the process manager, smpd,
running on machine2.<BR> Make sure that you install MPICH2 on all
the machines/hosts/nodes involved in the MPI job.<BR> Also make sure
that you disable windows firewall (or any 3rd party firewalls) on all the
nodes. You can alternately refer to the section "Runtime environment
--> firewalls" in the windows developer's guide (<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://www.mcs.anl.gov/research/projects/mpich2/documentation/index.php?s=docs"
target=_blank>http://www.mcs.anl.gov/research/projects/mpich2/documentation/index.php?s=docs</A>)
to configure the windows firewall for MPICH2.<BR> Let us know if it
works for
you.<BR><BR>Regards,<BR><SPAN>Jayesh</SPAN><SPAN><BR> <BR>-----Original
Message-----<BR>From: <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:owner-mpich-discuss@mcs.anl.gov"
target=_blank>owner-mpich-discuss@mcs.anl.gov</A> [<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:owner-mpich-discuss@mcs.anl.gov"
target=_blank>mailto:owner-mpich-discuss@mcs.anl.gov</A>] On Behalf Of
Rajeev Thakur<BR>Sent: Wednesday, August 13, 2008 3:55 PM<BR>To: <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mpich-discuss@mcs.anl.gov"
target=_blank>mpich-discuss@mcs.anl.gov</A><BR></SPAN>
<DIV><SPAN>Cc: <A onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:zhuqi.jeffrey@gmail.com"
target=_blank>zhuqi.jeffrey@gmail.com</A><BR>Subject: [mpich-discuss] FW:
How to use MPICH2 to run a MPI application across two Windows XP
machines?<BR><BR><BR>-----Original Message-----<BR>Date: Wed, 13 Aug 2008
16:52:22 -0400<BR>From: "Qi Zhu" <<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:zhuqi.jeffrey@gmail.com"
target=_blank>zhuqi.jeffrey@gmail.com</A>><BR>To: <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mpich-discuss@mcs.anl.gov"
target=_blank>mpich-discuss@mcs.anl.gov</A><BR>Subject: How to use MPICH2
to run a MPI application across two Windows XP machines?<BR>MIME-Version:
1.0<BR>Content-Type:
multipart/alternative;<BR>
boundary="----=_Part_29681_2966996.1218660742932"<BR>X-Virus-Scanned: by
amavisd-new-20030616-p10 (Debian) at <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://mailgw.mcs.anl.gov/"
target=_blank>mailgw.mcs.anl.gov</A><BR>X-Spam-Status: No, hits=1.2
required=5.0<BR>
tests=HTML_10_20,HTML_MESSAGE<BR>
version=2.55<BR>X-Spam-Level: *<BR>X-Spam-Checker-Version: SpamAssassin
2.55 (1.174.2.19-2003-05-19-exp)<BR>X-MCS-Mail-Loop:
mpich-discuss<BR><BR>------=_Part_29681_2966996.1218660742932<BR>Content-Type:
text/plain; charset=ISO-8859-1<BR>Content-Transfer-Encoding:
7bit<BR>Content-Disposition: inline<BR><BR>Hi, Everybody, I am a new
comer here and I am interested to know more about MPICH2.<BR><BR>Here is
what I came across when I was trying to run a MPI application across two
Windows XP computers:<BR>I use the command, machine 1 is my local machine
and machin 2 is a remote one.<BR><BR>mpiexec -hosts 2 machine1 machine2
myapp.exe<BR><BR>Then the error message
is:<BR>MPIDU_Sock_Post_Connect<1228>: Unable to connect to machine2
on port 8676.<BR>MPIDU_Sock_Post_Connect<1275>: A connection attempt
failed because the connected party did not actively respond after a period
of time.<BR><BR>Can anyone tell me how can I deal with it?<BR>Thanks a
lot.<BR><BR>--<BR>Thanks and Regards<BR>Sincerely
Yours<BR>Jeffrey<BR><BR></SPAN></DIV></FONT>
<P></P>
<P></P>
<P></P>
<P></P>
<P></P>
<P></P></DIV></BLOCKQUOTE></DIV><BR><BR clear=all><BR>-- <BR>Thanks and
Regards<BR>Sincerely Yours<BR>Zhu Qi
</SPAN></DIV></DIV></BLOCKQUOTE></DIV><BR><BR clear=all><BR>-- <BR>Thanks and
Regards<BR>Sincerely Yours<BR>Zhu Qi
</SPAN></DIV></DIV></BLOCKQUOTE></DIV><BR><BR clear=all><BR>-- <BR>Thanks and
Regards<BR>Sincerely Yours<BR>Zhu Qi </BODY></HTML>