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<DIV dir=ltr align=left><SPAN class=115013220-02082006><FONT face=Arial
color=#0000ff size=2>Why don't you first try with the latest release, 1.0.4.
There were some bugs in MPD that are fixed there.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=115013220-02082006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=115013220-02082006><FONT face=Arial
color=#0000ff size=2>Rajeev</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=115013220-02082006></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>Zach
Ponder<BR><B>Sent:</B> Wednesday, August 02, 2006 2:59 PM<BR><B>To:</B>
mpich-discuss@mcs.anl.gov<BR><B>Subject:</B> [MPICH] mpdboot and mpdcheck
problems<BR></FONT><BR></DIV>
<DIV></DIV>I'm having some troubles getting Mpich2-1.0.3 up and running on a
three computer setup, one master two computation nodes. I've seen a mailing
archive of someone that seemed to have a similar problem, and they were able
to correct it in some manner.
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV><A
href="http://www-unix.mcs.anl.gov/web-mail-archive/lists/mpich-discuss/2006/04/msg00037.html">http://www-unix.mcs.anl.gov/web-mail-archive/lists/mpich-discuss/2006/04/msg00037.html
</A></DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>It seemed to be a problem with the mpd being addressed to 127.0.0.1. Not
entirely sure if I'm in the same situation, but I am stuck on how to fix it.
I'm afraid that it is some sort of simple networking issue, but since this is
my first venture into cluster computing everything is posing a challenge.
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>Things I'm able to do or have done:</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV><SPAN class=Apple-tab-span style="WHITE-SPACE: pre"></SPAN>ping between
boxes</DIV>
<DIV><SPAN class=Apple-tab-span style="WHITE-SPACE: pre"></SPAN>ssh between
boxes without password</DIV>
<DIV><SPAN class=Apple-tab-span style="WHITE-SPACE: pre"></SPAN>bring up an
mpd on each box</DIV>
<DIV><SPAN class=Apple-tab-span style="WHITE-SPACE: pre"></SPAN>made the
changes to mpd.py (commented two lines)</DIV>
<DIV><SPAN class=Apple-tab-span style="WHITE-SPACE: pre"></SPAN></DIV>
<DIV>Things I'm unable to do:</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV><SPAN class=Apple-tab-span style="WHITE-SPACE: pre"></SPAN>use mpdboot to
bring up a ring of mpds</DIV>
<DIV><SPAN class=Apple-tab-span style="WHITE-SPACE: pre"></SPAN>manually start
a server/client mpd on two machines(gives error along lines of unable to
ping)</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>I don't receive any errors when running mpdcheck, but not the case when I
run mpdcheck -f ~/Desktop/mpd.hosts -ssh</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>[cobalt@bhead home]$ mpdcheck -f ~/Desktop/mpd.hosts -ssh</DIV>
<DIV>** timed out waiting for client on b1.aero.nd.edu to produce output</DIV>
<DIV>client on b1.aero.nd.edu failed to access the server</DIV>
<DIV>here is the output:</DIV>
<DIV>Traceback (most recent call last):</DIV>
<DIV>File "/home/cobalt/mpich2-install/bin/mpdcheck.py", line 103, in ?</DIV>
<DIV>sock.connect((argv[argidx+1],int(argv[argidx+2]))) # note double
parens</DIV>
<DIV>File "<string>", line 1, in connect</DIV>
<DIV>socket.error: (113, 'No route to host')</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>And here is the output from mpdcheck -pc:</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>[cobalt@bhead home]$ mpdcheck -pc</DIV>
<DIV>--- print results of: gethostbyname_ex(gethostname())</DIV>
<DIV>('bhead.aero.nd.edu', ['bhead'], ['192.168.2.1'])</DIV>
<DIV>--- try to run /bin/hostname</DIV>
<DIV>bhead.aero.nd.edu</DIV>
<DIV>--- try to run uname -a</DIV>
<DIV>Linux bhead.aero.nd.edu 2.6.9-34.EL #1 Mon Mar 13 11:31:17 CST 2006 i686
i686 i386 GNU/Linux</DIV>
<DIV>--- try to print /etc/hosts</DIV>
<DIV># Do not remove the following line, or various programs</DIV>
<DIV># that require network functionality will fail.</DIV>
<DIV>192.168.2.102 b2.aero.nd.edu b2</DIV>
<DIV>192.168.2.101 b1.aero.nd.edu b1</DIV>
<DIV>192.168.2.1 bhead.aero.nd.edu bhead</DIV>
<DIV>--- try to print /etc/resolv.conf</DIV>
<DIV>; generated by /sbin/dhclient-script</DIV>
<DIV>search aero.nd.edu</DIV>
<DIV>nameserver 192.168.2.1</DIV>
<DIV>--- try to run /sbin/ifconfig -a</DIV>
<DIV>eth0 Link encap:Ethernet HWaddr 00:11:11:95:8F:63</DIV>
<DIV>inet addr:192.168.2.1 Bcast:192.168.2.255 Mask:255.255.255.0</DIV>
<DIV>inet6 addr: fe80::211:11ff:fe95:8f63/64 Scope:Link</DIV>
<DIV>UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</DIV>
<DIV>RX packets:263 errors:0 dropped:0 overruns:0 frame:0</DIV>
<DIV>TX packets:293 errors:0 dropped:0 overruns:0 carrier:0</DIV>
<DIV>collisions:0 txqueuelen:1000</DIV>
<DIV>RX bytes:40718 (39.7 KiB) TX bytes:39246 (38.3 KiB)</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>lo Link encap:Local Loopback</DIV>
<DIV>inet addr:127.0.0.1 Mask:255.0.0.0</DIV>
<DIV>inet6 addr: ::1/128 Scope:Host</DIV>
<DIV>UP LOOPBACK RUNNING MTU:16436 Metric:1</DIV>
<DIV>RX packets:1475 errors:0 dropped:0 overruns:0 frame:0</DIV>
<DIV>TX packets:1475 errors:0 dropped:0 overruns:0 carrier:0</DIV>
<DIV>collisions:0 txqueuelen:0</DIV>
<DIV>RX bytes:2939426 (2.8 MiB) TX bytes:2939426 (2.8 MiB)</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>sit0 Link encap:IPv6-in-IPv4</DIV>
<DIV>NOARP MTU:1480 Metric:1</DIV>
<DIV>RX packets:0 errors:0 dropped:0 overruns:0 frame:0</DIV>
<DIV>TX packets:0 errors:0 dropped:0 overruns:0 carrier:0</DIV>
<DIV>collisions:0 txqueuelen:0</DIV>
<DIV>RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>--- try to print /etc/nsswitch.conf</DIV>
<DIV>#</DIV>
<DIV># /etc/nsswitch.conf</DIV>
<DIV>#</DIV>
<DIV># An example Name Service Switch config file. This file should be</DIV>
<DIV># sorted with the most-used services at the beginning.</DIV>
<DIV>#</DIV>
<DIV># The entry '[NOTFOUND=return]' means that the search for an</DIV>
<DIV># entry should stop if the search in the previous entry turned</DIV>
<DIV># up nothing. Note that if the search failed due to some other
reason</DIV>
<DIV># (like no NIS server responding) then the search continues with
the</DIV>
<DIV># next entry.</DIV>
<DIV>#</DIV>
<DIV># Legal entries are:</DIV>
<DIV>#</DIV>
<DIV># nis or yp Use NIS (NIS version 2), also called YP</DIV>
<DIV># dns Use DNS (Domain Name Service)</DIV>
<DIV># files Use the local files</DIV>
<DIV># db Use the local database (.db) files</DIV>
<DIV># compat Use NIS on compat mode</DIV>
<DIV># hesiod Use Hesiod for user lookups</DIV>
<DIV># ldap Use LDAP (only if nss_ldap is installed)</DIV>
<DIV># nisplus or nis+ Use NIS+ (NIS version 3), unsupported</DIV>
<DIV># [NOTFOUND=return] Stop searching if not found so far</DIV>
<DIV>#</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV># To use db, put the "db" in front of "files" for entries you want to
be</DIV>
<DIV># looked up first in the databases</DIV>
<DIV>#</DIV>
<DIV># Example:</DIV>
<DIV>#passwd: db files ldap nis</DIV>
<DIV>#shadow: db files ldap nis</DIV>
<DIV>#group: db files ldap nis</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>passwd: files</DIV>
<DIV>shadow: files</DIV>
<DIV>group: files</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>#hosts: db files ldap nis dns</DIV>
<DIV>hosts: files dns</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV># Example - obey only what ldap tells us...</DIV>
<DIV>#services: ldap [NOTFOUND=return] files</DIV>
<DIV>#networks: ldap [NOTFOUND=return] files</DIV>
<DIV>#protocols: ldap [NOTFOUND=return] files</DIV>
<DIV>#rpc: ldap [NOTFOUND=return] files</DIV>
<DIV>#ethers: ldap [NOTFOUND=return] files</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>bootparams: files</DIV>
<DIV>ethers: files</DIV>
<DIV>netmasks: files</DIV>
<DIV>networks: files</DIV>
<DIV>protocols: files</DIV>
<DIV>rpc: files</DIV>
<DIV>services: files</DIV>
<DIV>netgroup: files</DIV>
<DIV>publickey: files</DIV>
<DIV>automount: files</DIV>
<DIV>aliases: files</DIV>
<DIV>[cobalt@bhead home]$</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>Thanks for your attention,</DIV></DIV><BR>
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<DIV>Zach Ponder</DIV>
<DIV>Graduate Student</DIV>
<DIV>University of Notre Dame</DIV>
<DIV>Department of Aerospace and Mechanical Engineering</DIV>
<DIV><A href="mailto:zponder@nd.edu">zponder@nd.edu</A></DIV><BR
class=Apple-interchange-newline></SPAN></SPAN></SPAN></DIV><BR></BLOCKQUOTE></BODY></HTML>