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From: Brian Barrett (brbarret_at_[hidden])
Date: 2006-03-02 12:09:18

On Mar 2, 2006, at 11:34 AM, Xiaoning (David) Yang wrote:

> Thank you for the help. I did include path to orted in my .tcshrc
> file on
> mac2, but I put the path at the end of the file. It is interesting
> that when
> I logged into mac with ssh, the path was included and orted was in
> my path.
> But when I ran "ssh mac2 which orted", orted was not found. It
> finds orted
> only after I move the path from the end of .tcshrc to the beginning
> of the
> file. Strange. Again, thanks and at least I may make MPI work.

Do you have a test like if ( $?prompt ) exit towards the end of
your .tcshrc? Most .tcshrc files do, and the end is only evaluated
for interactive shells (which the one to start the orted is not).
This is probably why moving it to the top helped.

Anyway, glad to hear things are working for you.


>> From: Brian Barrett <brbarret_at_[hidden]>
>> Reply-To: Open MPI Users <users_at_[hidden]>
>> Date: Thu, 2 Mar 2006 00:24:27 -0500
>> To: Open MPI Users <users_at_[hidden]>
>> Subject: Re: [OMPI users] tcsh: orted: Not Found
>> On Mar 1, 2006, at 5:26 PM, Xiaoning (David) Yang wrote:
>>> I installed Open MPI 1.0.1 on two Mac G5s (one with two cpus and
>>> the other
>>> with 4 cpus.). I set up ssh on both machines according to the FAQ.
>>> My mpi
>>> jobs work fine if I run the jobs on only one computer. But when I
>>> ran a job
>>> across the two Macs from the first Mac mac1, I got:
>>> mac1: mpirun -np 6 --hostfiles /Users/me/my_hosts hello_world
>>> tcsh: orted: Command not found.
>>> [mac1:01019] ERROR: A daemon on node mac2 failed to start as
>>> expected.
>>> [mac1:01019] ERROR: There may be more information available from
>>> [mac1:01019] ERROR: the remote shell (see above).
>>> [mac1:01019] ERROR: The daemon exited unexpectedly with status 1.
>>> 2 processes killed (possibly by Open MPI)
>>> File my_hosts looks like
>>> mac1 slots=2
>>> mac2 slots=4
>>> The orted is definitely on my path on both machines. Any idea?
>>> Help is
>>> greatly appreciated!
>> I'm guessing that the issue is with your shell configuration. mpirun
>> starts the orted on the remote node through rsh/ssh, which will start
>> a non-login shell on the remote node. Unfortunately, the set of
>> dotfiles evaluated when a non-login shell is different than when
>> starting a login shell. The easiest way to tell if this is the issue
>> is to check whether orted is in your path when started in a non-login
>> shell with a command like:
>> ssh remote_host which orted
>> More information on how to configure your particular shell for use
>> with Open MPI can be found in our FAQ at:
>> Hope this helps,
>> Brian
>> --
>> Brian Barrett
>> Open MPI developer
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