Hi jeff Squyres
Iam sorry ,actually i have gone through all ur advises and also created an
password less ssh key by the instructions provided in FAQ of OpenMPI
website. and i have google, for giving the permission to user to access
SSH, for that i have configured in SSH_config file but iam unable t
Did you read the FAQ links that I sent? It talks about setting up SSH keys.
Also try this link:
http://bit.ly/JQd6cF
(sidenote: I am very willing to help people, especially those who are new to
the field, who are willing to help themselves. But my patience grows a little
thin when I rep
You'll need to use ssh-keygen to make a set of RSA keys. Don't enter a password
when it prompts for one; this will ensure passwordless operation. Once the keys
are created, copy ~/.ssh/id_rsa.pub to ~/.ssh/authorized_keys and you should be
set.
From: users-boun.
Hi,
I have tried so much for correcting that ssh error but unable solve it. but
when i tried connecting to client nodes through ssh in
root user iam iam successful but when i have created an new user iam unable
to connect. so please any help in solving this. As iam nearing to deadline.
Thankin
To get you running, just setup ssh keys that have empty passphrases. Then you
don't need ssh-agent.
To setup ssh keys that have non-empty passphrases and get ssh-agent working
properly, google around for ssh tutorials (there are many fine ones available)
-- that's a bit out of scope for this l
On Apr 25, 2012, at 12:51 PM, Ralph Castain wrote:
> Sounds rather bizarre. Do you have lstopo on your machine? Might be useful to
> see the output of that so we can understand what it thinks the topology is
> like as this underpins the binding code.
>
> The -nooversubscribe option is a red her
Sounds rather bizarre. Do you have lstopo on your machine? Might be useful to
see the output of that so we can understand what it thinks the topology is like
as this underpins the binding code.
The -nooversubscribe option is a red herring here - it has nothing to do with
the problem, nor will i
Hi,
I have read the FAQ for ssh and followed it but i have got the following
error
[master@ip-10-80-106-70 .ssh]$ eval
'ssh-agent'
SSH_AUTH_SOCK=/tmp/ssh-MOnArn9942/agent.9942; export SSH_AUTH_SOCK;
SSH_AGENT_PID=9943; export SSH_AGENT_PID;
echo Agent pid 9943;
[master@ip-10-80-106-70 .ssh]$ ssh-
>I just re-read the thread. I think there's a little confusion between the
terms "processor" and "MPI process" here. You said "As a pre-processing
step, each processor must figure out which other processors it must
communicate with by virtue of sharing neighboring grid points." Did you
mean "MPI pr
I just re-read the thread.
I think there's a little confusion between the terms "processor" and "MPI
process" here.
You said "As a pre-processing step, each processor must figure out which other
processors it must communicate with by virtue of sharing neighboring grid
points."
Did you mean
> Any chance you could upgrade to Open MPI 1.5.5? It has a better version
of the processor affinity stuff than the 1.4 series.
Did this and recompiled everything that depended on OMPI. No difference
whatsoever. It still tells me, if I specify -np 2 for example, that "There
are not enough slots ava
I would really suggest doing a little reading in the FAQ. It talks about
setting up ssh keys, etc.
http://www.open-mpi.org/faq/?category=rsh
On Apr 25, 2012, at 12:03 PM, seshendra seshu wrote:
> Hi,
> Thanks its has worked but when i tried to run for a 2 nodes , i have got the
> followi
Hi,
Thanks its has worked but when i tried to run for a 2 nodes , i have got
the following error
[master@ip-10-80-106-70 ~]$ mpirun -n 2 --hostfile hostfile out
Permission denied (publickey,gssapi-with-mic).
--
A daemon (pid 9
My bad. I did not read the bottom part of the email.
Not sure If this would help, but can u try, --mca btl sm,self ?
--
Sent from my iPhone
On Apr 24, 2012, at 3:46 PM, Kyle Boe wrote:
> Right, I tried using a hostfile, and it made no difference. This is running
> OpenMPI 1.4.4 on CentOS 5.x
Yes, but what happens when you run a remote, non-login shell? By that,
I mean something like this:
ssh master@ip-10-80-106-70 'echo $LD_LIBRARY_PATH'
Assuming I got the syntax right, I suspect you'll find that the contents
of the variable, do not include /usr/local/openmpi-1.4.5/lib.
You really
export LD_LIBRARY_PATH= [location of library] leave out the :$LD_LIBRARY_PATH
From: users-boun...@open-mpi.org [users-boun...@open-mpi.org] on behalf of
seshendra seshu [seshu...@gmail.com]
Sent: Wednesday, April 25, 2012 10:43 AM
To: Open MPI Users
Subject: Re: [O
Hi
I have exported the library files as below
[master@ip-10-80-106-70 ~]$ export
LD_LIBRARY_PATH=/usr/local/openmpi-1.4.5/lib:$LD_LIBRARY_PATH
[master@ip-10-80-106-70 ~]$ mpirun --prefix /usr/local/openmpi-1.4.5 -n 1
--hostfile hostfile out
out: error while loading shared libraries: libmpi_cxx.so
See the FAQ item I cited.
Sent from my phone. No type good.
On Apr 25, 2012, at 11:24 AM, "seshendra seshu" wrote:
> Hi
> now i have created an used and tried to run the program but i got the
> following error
>
> [master@ip-10-80-106-70 ~]$ mpirun -n 1 --hostfile hostfile out
Now you need to set your path in your bash profile as Jeff suggested
From: users-boun...@open-mpi.org [users-boun...@open-mpi.org] on behalf of
seshendra seshu [seshu...@gmail.com]
Sent: Wednesday, April 25, 2012 10:24 AM
To: Open MPI Users
Subject: Re: [OMPI users
Hi
now i have created an used and tried to run the program but i got the
following error
[master@ip-10-80-106-70 ~]$ mpirun -n 1 --hostfile hostfile
out
out: error while loading shared libraries: libmpi_cxx.so.0: cannot open
shared object file: No such file or directory
thanking you
On Wed,
On Apr 25, 2012, at 11:06 AM, seshendra seshu wrote:
> so should i need to create an user and run the mpi program. or how can i run
> in cluster
It is a "best practice" to not run real applications as root (e.g., MPI
applications). Create a non-privlidged user to run your applications.
Then b
so should i need to create an user and run the mpi program. or how can i
run in cluster
On Wed, Apr 25, 2012 at 4:45 PM, Doug Reeder wrote:
> That is well documented as a BAD idea.
>
> On Apr 25, 2012, at 8:23 AM, seshendra seshu wrote:
>
> Hi
> Yes i run in root.
>
> On Wed, Apr 25, 2012 at 4:2
That is well documented as a BAD idea.
On Apr 25, 2012, at 8:23 AM, seshendra seshu wrote:
> Hi
> Yes i run in root.
>
> On Wed, Apr 25, 2012 at 4:20 PM, tyler.bal...@huskers.unl.edu
> wrote:
> Seshendra,
>
> Do you always run in root? If not your root bash file may not have the
> correct
Any chance you could upgrade to Open MPI 1.5.5? It has a better version of the
processor affinity stuff than the 1.4 series.
On Apr 25, 2012, at 10:35 AM, Kyle Boe wrote:
> I tried this and got the same result. Any other thing I might be missing...?
>
> >Did you tell it --bind-to-core? If not
I tried this and got the same result. Any other thing I might be missing...?
>Did you tell it --bind-to-core? If not, then the procs would be unbound to
any particular core - so your code might well think they are "sharing"
cores.
Hi
Yes i run in root.
On Wed, Apr 25, 2012 at 4:20 PM, tyler.bal...@huskers.unl.edu <
tyler.bal...@huskers.unl.edu> wrote:
> Seshendra,
>
> Do you always run in root? If not your root bash file may not have the
> correct path settings, but that is a shot in the dark..
> ---
Seshendra,
Do you always run in root? If not your root bash file may not have the correct
path settings, but that is a shot in the dark..
From: users-boun...@open-mpi.org [users-boun...@open-mpi.org] on behalf of
seshendra seshu [seshu...@gmail.com]
Sent: Wednesd
Hi,
I have got the following error while running mpi programs
Here for running an mpi program i used hostfile which specifies all the
nodes in my cluster and out is my output file generated after "mpicc -o out
basic.c". then i have got the following error.
*[root@ip-10-80-106-70 openmpi-1.4.5]# m
On Apr 25, 2012, at 8:58 AM, seshendra seshu wrote:
> I have installed openMPI on the master node and separately on client nodes
> how can i check that all nodes can communicate for openmpi for running
> parallel programs.
Check out this prior post from this list:
http://www.open-mpi.org/
Hi,
I have installed openMPI on the master node and separately on client nodes
how can i check that all nodes can communicate for openmpi for running
parallel programs. And i need to use ssh for the connection establishment.
i need the configuration of ssh for open mpi.
thanking you,
--
WITH
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