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<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>Hi,</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>Actually the MPICH is installed on the root (server) node, how would other nodes be able to see the path of mpi binaries…. As u have written, let me know how nodes would be able to see executable program & mpi libraries…</FONT></P>
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<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>Whatever MPI program I m executing it is giving the output but wall clock time is increasing as the –np argument value increase, because the tasks aren’t running on other nodes only on the server….</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>I m using a 2 node LINUX 9 cluster & MPICH 1.2.5.2 as an MPI………</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>I have to present my project on 30<SUP>th</SUP> December, kindly solve the problem….</FONT></P>
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<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>Akhtar</FONT></P><BR><BR><B><I>Glen Gardner <Glen.Gardner@verizon.net></I></B> wrote:
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">The error in the 5th step is caused by a chatty login message. This makes mpi complain but it ought to work anyway.<BR>You want to turn off motd, and if using freebsd create a file called ".huslogin" and put it in the users home directory.<BR><BR>The next error is to do with paths to mpich and to the program being launched.<BR>All the nodes need to be able to "see" the mpi binaries and need to be able to see the executable program.<BR>The paths to mpi and the program being launched need to be the same for all nodes and for the root node.<BR>Make sure the path is seutup properly in the environment. You may need to chek your mount points and setup NFS properly.<BR><BR><BR>The last one probably has to do with name resolution.<BR>The root node usually won't need to be in the machines.linux file, but all other nodes need to be.<BR>I believe you need to list machines by hostname, not
ip addresses so be sure that both machines have the same hostfile, same .rhosts, etc.<BR><BR>Glen<BR><BR><BR>The next message indicates that the path to the executable "mpichfoo" was not found. <BR><BR>akhtar Rasool wrote:<BR>
<BLOCKQUOTE cite=mid20041211051044.82812.qmail@web20025.mail.yahoo.com type="cite">
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<P class=MsoNormal style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; MARGIN: 0in 0in 0pt; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none"><FONT face="Times New Roman" size=3>After the extraction of MPICH in /usr/local</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman"><FONT size=3>1- tcsh<SPAN> </SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>2- ./configure –with-comm=shared --prefix=/usr/local</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>3-<SPAN> </SPAN>make</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>4-<SPAN> </SPAN>make install</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>5-<SPAN> </SPAN>util/tstmachines</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>in the 5<SUP>th</SUP> step error was</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>Errors while trying to run<SPAN> </SPAN>rsh 192.168.0.25 –n /bin/ls<SPAN> </SPAN>/usr/local/mpich/mpich-1.2.5.2/mpichfoo<SPAN> </SPAN>unexpected response from 192.168.0.25</FONT></P>
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<P class=MsoNormal style="MARGIN: 0in 0in 0pt 0.5in; TEXT-INDENT: -0.25in"><SPAN style="FONT-FAMILY: Wingdings"><SPAN><FONT size=3>n</FONT><SPAN style="FONT: 7pt 'Times New Roman'; font-stretch: normal; font-size-adjust: none"> </SPAN></SPAN></SPAN><FONT face="Times New Roman" size=3>> /bin/ls: /usr/local/mpich/mpich-1.2.5.2/mpichfoo:</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt 0.5in; TEXT-INDENT: -0.25in"><SPAN style="FONT-FAMILY: Wingdings"><SPAN><FONT size=3>n</FONT><SPAN style="FONT: 7pt 'Times New Roman'; font-stretch: normal; font-size-adjust: none"> </SPAN></SPAN></SPAN><FONT face="Times New Roman" size=3>no such file or directory</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>The ls test failed on some machines.</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>This usually means that u donot have a common filesystem on all of the machines in your machines list; MPICH requires this for mpirun (it is possible to handle this in a procgroup file; see the……)</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>Other possible problems include:-</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>The remote shell command rsh doesnot allow you to run ls.</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>See the doc abt remote shell & rhosts</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>You have common filesystem, but with inconsistent names</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>See the doc on the automounter fix</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>1 error were encountered while testing the machines list for LINUX</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>only these machines seem to be available</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>host1</FONT></P>
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<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>now since this is only a two node cluster host1 is the server on to which MPICH is being installed. & 192.168.0.25 is the client…..</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>rsh on both nodes is logging freely…….</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT size=3><FONT face="Times New Roman">On the server side the file<SPAN> </SPAN>“ machines.LINUX<SPAN> </SPAN>“ contains<SPAN> </SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>-192.168.0.25</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>-host1</FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman" size=3>Kindly help</FONT></P>
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<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN></SPAN> </P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN><FONT face="Times New Roman" size=3>Akhtar</FONT></SPAN></P></DIV>
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