Sorry for not replying earlier -- travel to the MPI Forum last week
put me waaaay behind on my INBOX. :-(
I don't think you want to "printenv > ~/.ssh/environment" -- you don't/
can't know for sure that the remote environment should be exactly the
same as your local environment.
Instead, you might want to use OMPI's built-in "set the PATH /
LD_LIBRARY_PATH remotely" functionality. Use the full path name to
mpirun, like:
/opt/openmpi/bin/mpirun ...
And that should tell mpirun to set the PATH and LD_LIBRARY_PATH
remotely. Note that this functionality assumes that Open MPI is
installed in exactly the same filesystem location on the node where
mpirun is invoked and the back-end compute nodes.
FWIW, you can also use the --prefix argument to mpirun; the "/opt/
openmpi/bin/mpirun ..." behavior is a shortcut for that same behavior
(we emulated the idea of using the full pathname to mpirun from HP MPI).
Additionally, you can force Open MPI to use the --prefix behavior by
default if you configure/build Open MPI with the --enable-mpirun-
prefix-by-default configure switch.
Hope that helps!
On Aug 3, 2009, at 7:35 AM, Tomislav Maric wrote:
Thank you Dominik for all your help!!
I've solved the problem: execute : printenv > ~/.ssh/environment
edit /etc/ssh/sshd_config and set PermitUserEnvironment to "yes" and
check that UseLogin is set to "no"
scp hostname ~/.ssh/environment user@hostname:~/.ssh/environment
edit sshd_config on the other host and set the same things.
Works like a charm!
Tomislav
Dominik Táborský wrote:
I'm sorry, I can't help you with NFS. I have never had it on my
network.
Good luck anyway... :)
Tomislav Maric píše v Ne 02. 08. 2009 v 20:18 +0200:
Dominik Táborský wrote:
Okay, now it's getting more confusing since I just found out that
it
somehow stopped working for me!
Anyway, let's find a solution.
I found out that there is difference between
ssh node1 echo $PATH
and
ssh node1 'echo $PATH'
These command give you different output. 'man ssh' states that it
sets
its own PATH variable right before the user logs in but after the
connection is established. This variable is set during compilation.
I am using dropbear as SSH2 server so I won't be able to guide
you if
you're using OpenSSH as a server, but the manpages should be
sufficient.
Look into man ssh and man ssh_config. You should create files
~/.ssh/rc
OR ~/.ssh/config OR ~/.ssh/environment. Setting it up in one of
these
files should be enough.
I will probably recompile dropbear with new default PATH.
Anyway, I am sure it used to work for me and I have no idea why it
stopped.
If you'd need more help, just ask :-)
Dr. Eddy
Thank you very much!! I'm also finding out about those files and I'm
using OpenSSH. I'll try and configure it to work. The weirdest
thing is
that people who use Ubuntu on OpenFOAM forum just had to comment a
line
in .bashrc that returns if the bash is run in non-interactive mode.
I just don't get it. Let me ask you just one thing, before the
next 5-6
hours of fighting with config files:
what about NFS?
What if I export the directory? On OMPI pages is written that nfs
simplifies things. I'm noob in networking so I don't know if this
would
benefit me.
If I edit ~/.ssh/environment then I have to manually set
VARIABLE=VALUE,
and there are dozens of variables to set. I think I'll try the rc
file
first.
Thank you again!
Best regards,
Tomislav
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