Hi,
Answer 1: try lamboot -d hostfile for more diagnostic hints about how to
find out why network name resolution is not finding "ganesh". also you
can google for something like "LAM host not found"...
Answer 2: No. But names given in a hostfile still have to be
resolvable in your network.
Editorial comment: As previously mentioned by Jeff S., I also strongly
encourage you to invest your time learning about Open MPI instead of
LAM/MPI.
Mac
Houston
________________________________
From: lam-bounces_at_[hidden] [mailto:lam-bounces_at_[hidden]] On Behalf
Of kartik kumar
Sent: Sunday, January 31, 2010 6:26 AM
To: lam_at_[hidden]
Subject: LAM: Lamboot : Error in booting
Hello,
I am getting error while Lambooting. Here is what i executed:
[kartik_at_ganesh lam]$ cat /etc/hosts
192.168.1.1 ganesh
192.168.1.2 node1
[kartik_at_ganesh lam]$ cat $HOME/.rhosts
ganesh user=kartik
node1 user=shiv
[kartik_at_ganesh lam]$ cat /home/kartik/lam/hostfile
ganesh
node1
[kartik_at_ganesh lam]$ lamboot -v hostfile
LAM 7.1.4/MPI 2 C++/ROMIO - Indiana University
------------------------------------------------------------------------
-----
The boot SSI rsh module found that your local host is not in the
hostfile "hostfile".
The local host name *must* be in the list of hosts in the hostfile.
In other words, you must boot LAM from a node that will be part of the
universe.
- If you simply forgot to put the local host in the boot
schema file, add it and re-run The boot SSI rsh module
- If you are trying to boot LAM from a node that will not be
part of the universe, you must login to on of the nodes that
will be part of the universe (i.e., one of the nodes in the
hostfiles), and re-run The boot SSI rsh module
Although the local host name is usually the first in the list to avoid
I/O ambiguities, it can actually appear anywhere in the list.
------------------------------------------------------------------------
-----
[kartik_at_ganesh lam]$
I Have got 2 questions:
1)Why is it asking for localhost name even though i mentioned in
hostfile as ganesh ?
2)Does OpenMPI also involve Lambooting ?
Regards,
P.Kartik Kumar
.
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