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Subject: Re: [OMPI users] How does authentication between nodes work without password? (Newbie alert on)
From: Tena Sakai (tsakai_at_[hidden])
Date: 2011-02-10 19:12:26


Hi jeff,

Thanks for the firewall tip. I tried it while allowing all tip traffic
and got interesting and preplexing result. Here's what's interesting
(BTW, I got rid of "LogLevel DEBUG3" from ./ssh/config on this run):

   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ mpirun --app app.ac2
   Host key verification failed.

--------------------------------------------------------------------------
   A daemon (pid 2743) died unexpectedly with status 255 while attempting
   to launch so we are aborting.

   There may be more information reported by the environment (see above).

   This may be because the daemon was unable to find all the needed shared
   libraries on the remote node. You may set your LD_LIBRARY_PATH to have
the
   location of the shared libraries on the remote nodes and this will
   automatically be forwarded to the remote nodes.

--------------------------------------------------------------------------

--------------------------------------------------------------------------
   mpirun noticed that the job aborted, but has no info as to the process
   that caused that situation.

--------------------------------------------------------------------------
   mpirun: clean termination accomplished

   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ env | grep LD_LIB
   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ # Let's set LD_LIBRARY_PATH to
/usr/local/lib
   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ export LD_LIBRARY_PATH='/usr/local/lib'
   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ # I better to this on machine B as well
   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ ssh -i tsakai ip-10-195-171-159
   Warning: Identity file tsakai not accessible: No such file or directory.
   Last login: Thu Feb 10 18:31:20 2011 from 10.203.21.132
   [tsakai_at_ip-10-195-171-159 ~]$
   [tsakai_at_ip-10-195-171-159 ~]$ export LD_LIBRARY_PATH='/usr/local/lib'
   [tsakai_at_ip-10-195-171-159 ~]$
   [tsakai_at_ip-10-195-171-159 ~]$ env | grep LD_LIB
   LD_LIBRARY_PATH=/usr/local/lib
   [tsakai_at_ip-10-195-171-159 ~]$
   [tsakai_at_ip-10-195-171-159 ~]$ # OK, now go bak to machine A
   [tsakai_at_ip-10-195-171-159 ~]$ exit
   logout
   Connection to ip-10-195-171-159 closed.
   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ hostname
   ip-10-203-21-132
   [tsakai_at_ip-10-203-21-132 ~]$ # try mpirun again
   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ mpirun --app app.ac2
   Host key verification failed.

--------------------------------------------------------------------------
   A daemon (pid 2789) died unexpectedly with status 255 while attempting
   to launch so we are aborting.

   There may be more information reported by the environment (see above).

   This may be because the daemon was unable to find all the needed shared
   libraries on the remote node. You may set your LD_LIBRARY_PATH to have
the
   location of the shared libraries on the remote nodes and this will
   automatically be forwarded to the remote nodes.

--------------------------------------------------------------------------

--------------------------------------------------------------------------
   mpirun noticed that the job aborted, but has no info as to the process
   that caused that situation.

--------------------------------------------------------------------------
   mpirun: clean termination accomplished

   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ # I thought openmpi library was in
/usr/local/lib...
   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ ll -t /usr/local/lib | less
   total 16604
   lrwxrwxrwx 1 root root 16 Feb 8 23:06 libfuse.so ->
libfuse.so.2.8.5
   lrwxrwxrwx 1 root root 16 Feb 8 23:06 libfuse.so.2 ->
libfuse.so.2.8.5
   lrwxrwxrwx 1 root root 25 Feb 8 23:06 libmca_common_sm.so ->
libmca_common_sm.so.1.0.0
   lrwxrwxrwx 1 root root 25 Feb 8 23:06 libmca_common_sm.so.1 ->
libmca_common_sm.so.1.0.0
   lrwxrwxrwx 1 root root 15 Feb 8 23:06 libmpi.so -> libmpi.so.0.0.2
   lrwxrwxrwx 1 root root 15 Feb 8 23:06 libmpi.so.0 ->
libmpi.so.0.0.2
   lrwxrwxrwx 1 root root 19 Feb 8 23:06 libmpi_cxx.so ->
libmpi_cxx.so.0.0.1
   lrwxrwxrwx 1 root root 19 Feb 8 23:06 libmpi_cxx.so.0 ->
libmpi_cxx.so.0.0.1
   lrwxrwxrwx 1 root root 19 Feb 8 23:06 libmpi_f77.so ->
libmpi_f77.so.0.0.1
   lrwxrwxrwx 1 root root 19 Feb 8 23:06 libmpi_f77.so.0 ->
libmpi_f77.so.0.0.1
   lrwxrwxrwx 1 root root 19 Feb 8 23:06 libmpi_f90.so ->
libmpi_f90.so.0.0.1
   lrwxrwxrwx 1 root root 19 Feb 8 23:06 libmpi_f90.so.0 ->
libmpi_f90.so.0.0.1
   lrwxrwxrwx 1 root root 20 Feb 8 23:06 libopen-pal.so ->
libopen-pal.so.0.0.0
   lrwxrwxrwx 1 root root 20 Feb 8 23:06 libopen-pal.so.0 ->
libopen-pal.so.0.0.0
   lrwxrwxrwx 1 root root 20 Feb 8 23:06 libopen-rte.so ->
libopen-rte.so.0.0.0
   lrwxrwxrwx 1 root root 20 Feb 8 23:06 libopen-rte.so.0 ->
libopen-rte.so.0.0.0
   lrwxrwxrwx 1 root root 26 Feb 8 23:06 libopenmpi_malloc.so ->
libopenmpi_malloc.so.0.0.0
   lrwxrwxrwx 1 root root 26 Feb 8 23:06 libopenmpi_malloc.so.0 ->
libopenmpi_malloc.so.0.0.0
   lrwxrwxrwx 1 root root 20 Feb 8 23:06 libulockmgr.so ->
libulockmgr.so.1.0.1
   lrwxrwxrwx 1 root root 20 Feb 8 23:06 libulockmgr.so.1 ->
libulockmgr.so.1.0.1
   lrwxrwxrwx 1 root root 16 Feb 8 23:06 libxml2.so ->
libxml2.so.2.7.2
   lrwxrwxrwx 1 root root 16 Feb 8 23:06 libxml2.so.2 ->
libxml2.so.2.7.2
   -rw-r--r-- 1 root root 385912 Jan 26 01:00 libvt.a
   [tsakai_at_ip-10-203-21-132 ~]$
   [tsakai_at_ip-10-203-21-132 ~]$ # Now, I am really confused...
   [tsakai_at_ip-10-203-21-132 ~]$

Do you know why it's complaining about shared libraries?

Thank you.

Tena

On 2/10/11 1:05 PM, "Jeff Squyres" <jsquyres_at_[hidden]> wrote:

> Your prior mails were about ssh issues, but this one sounds like you might
> have firewall issues.
>
> That is, the "orted" command attempts to open a TCP socket back to mpirun for
> various command and control reasons. If it is blocked from doing so by a
> firewall, Open MPI won't run. In general, you can either disable your
> firewall or you can setup a trust relationship for TCP connections within your
> cluster.
>
>
>
> On Feb 10, 2011, at 1:03 PM, Tena Sakai wrote:
>
>> Hi Reuti,
>>
>> Thanks for suggesting "LogLevel DEBUG3." I did so and complete
>> session is captured in the attached file.
>>
>> What I did is much similar to what I have done before: verify
>> that ssh works and then run mpirun command. In my a bit lengthy
>> session log, there are two responses from "LogLevel DEBUG3." First
>> from an scp invocation and then from mpirun invocation. They both
>> say
>> debug1: Authentication succeeded (publickey).
>>
>>> From mpirun invocation, I see a line:
>>
>> debug1: Sending command: orted --daemonize -mca ess env -mca
>> orte_ess_jobid 3344891904 -mca orte_ess_vpid 1 -mca orte_ess_num_procs
>> 2 --hnp-uri "3344891904.0;tcp://10.194.95.239:54256"
>> The IP address at the end of the line is indeed that of machine B.
>> After that there was hanging and I controlled-C out of it, which
>> gave me more lines. But the lines after
>> debug1: Sending command: orted bla bla bla
>> doesn't look good to me. But, in truth, I have no idea what they
>> mean.
>>
>> If you could shed some light, I would appreciate it very much.
>>
>> Regards,
>>
>> Tena
>>
>>
>> On 2/10/11 10:57 AM, "Reuti" <reuti_at_[hidden]> wrote:
>>
>>> Hi,
>>>
>>> Am 10.02.2011 um 19:11 schrieb Tena Sakai:
>>>
>>>>> your local machine is Linux like, but the execution hosts
>>>>> are Macs? I saw the /Users/tsakai/... in your output.
>>>>
>>>> No, my environment is entirely linux. The path to my home
>>>> directory on one host (blitzen) has been known as /Users/tsakai,
>>>> despite it is an nfs mount from vixen (which is known to
>>>> itself as /home/tsakai). For historical reasons, I have
>>>> chosen to give a symbolic link named /Users to vixen's /Home,
>>>> so that I can use consistent path for both vixen and blitzen.
>>>
>>> okay. Sometimes the protection of the home directory must be adjusted too,
>>> but
>>> as you can do it from the command line this shouldn't be an issue.
>>>
>>>
>>>>> Is this a private cluster (or at least private interfaces)?
>>>>> It would also be an option to use hostbased authentication,
>>>>> which will avoid setting any known_hosts file or passphraseless
>>>>> ssh-keys for each user.
>>>>
>>>> No, it is not a private cluster. It is Amazon EC2. When I
>>>> Ssh from my local machine (vixen) I use its public interface,
>>>> but to address from one amazon cluster node to the other I
>>>> use nodes' private dns names: domU-12-31-39-07-35-21 and
>>>> domU-12-31-39-06-74-E2. Both public and private dns names
>>>> change from a launch to another. I am using passphrasesless
>>>> ssh-keys for authentication in all cases, i.e., from vixen to
>>>> Amazon node A, from amazon node A to amazon node B, and from
>>>> Amazon node B back to A. (Please see my initail post. There
>>>> is a session dialogue for this.) They all work without authen-
>>>> tication dialogue, except a brief initial dialogue:
>>>> The authenticity of host 'domu-xx-xx-xx-xx-xx-x (10.xx.xx.xx)'
>>>> can't be established.
>>>> RSA key fingerprint is e3:ad:75:b1:a4:63:7f:0f:c4:0b:10:71:f3:2f:21:81.
>>>> Are you sure you want to continue connecting (yes/no)?
>>>> to which I say "yes."
>>>> But I am unclear with what you mean by "hostbased authentication"?
>>>> Doesn't that mean with password? If so, it is not an option.
>>>
>>> No. It's convenient inside a private cluster as it won't fill each users'
>>> known_hosts file and you don't need to create any ssh-keys. But when the
>>> hostname changes every time it might also create new hostkeys. It uses
>>> hostkeys (private and public), this way it works for all users. Just for
>>> reference:
>>>
>>> http://arc.liv.ac.uk/SGE/howto/hostbased-ssh.html
>>>
>>> You could look into it later.
>>>
>>> ==
>>>
>>> - Can you try to use a command when connecting from A to B? E.g. ssh
>>> `domU-12-31-39-06-74-E2 ls`. Is this working too?
>>>
>>> - What about putting:
>>>
>>> LogLevel DEBUG3
>>>
>>> In your ~/.ssh/config. Maybe we can see what he's trying to negotiate before
>>> it fails in verbose mode.
>>>
>>>
>>> -- Reuti
>>>
>>>
>>>
>>>> Regards,
>>>>
>>>> Tena
>>>>
>>>>
>>>> On 2/10/11 2:27 AM, "Reuti" <reuti_at_[hidden]> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> your local machine is Linux like, but the execution hosts are Macs? I saw
>>>>> the
>>>>> /Users/tsakai/... in your output.
>>>>>
>>>>> a) executing a command on them is also working, e.g.: ssh
>>>>> domU-12-31-39-07-35-21 ls
>>>>>
>>>>> Am 10.02.2011 um 07:08 schrieb Tena Sakai:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I have made a bit of progress(?)...
>>>>>> I made a config file in my .ssh directory on the cloud. It looks like:
>>>>>> # machine A
>>>>>> Host domU-12-31-39-07-35-21.compute-1.internal
>>>>>
>>>>> This is just an abbreviation or nickname above. To use the specified
>>>>> settings,
>>>>> it's necessary to specify exactly this name. When the settings are the
>>>>> same
>>>>> anyway for all machines, you can use:
>>>>>
>>>>> Host *
>>>>> IdentityFile /home/tsakai/.ssh/tsakai
>>>>> IdentitiesOnly yes
>>>>> BatchMode yes
>>>>>
>>>>> instead.
>>>>>
>>>>> Is this a private cluster (or at least private interfaces)? It would also
>>>>> be
>>>>> an option to use hostbased authentication, which will avoid setting any
>>>>> known_hosts file or passphraseless ssh-keys for each user.
>>>>>
>>>>> -- Reuti
>>>>>
>>>>>
>>>>>> HostName domU-12-31-39-07-35-21
>>>>>> BatchMode yes
>>>>>> IdentityFile /home/tsakai/.ssh/tsakai
>>>>>> ChallengeResponseAuthentication no
>>>>>> IdentitiesOnly yes
>>>>>>
>>>>>> # machine B
>>>>>> Host domU-12-31-39-06-74-E2.compute-1.internal
>>>>>> HostName domU-12-31-39-06-74-E2
>>>>>> BatchMode yes
>>>>>> IdentityFile /home/tsakai/.ssh/tsakai
>>>>>> ChallengeResponseAuthentication no
>>>>>> IdentitiesOnly yes
>>>>>>
>>>>>> This file exists on both machine A and machine B.
>>>>>>
>>>>>> Now When I issue mpirun command as below:
>>>>>> [tsakai_at_domU-12-31-39-06-74-E2 ~]$ mpirun -app app.ac2
>>>>>>
>>>>>> It hungs. I control-C out of it and I get:
>>>>>> mpirun: killing job...
>>>>>>
>>>>>>
>>>>>>
------------------------------------------------------------------------->>>>>>
-
>>>>>> mpirun noticed that the job aborted, but has no info as to the process
>>>>>> that caused that situation.
>>>>>>
>>>>>>
------------------------------------------------------------------------->>>>>>
-
>>>>>>
>>>>>>
------------------------------------------------------------------------->>>>>>
-
>>>>>> mpirun was unable to cleanly terminate the daemons on the nodes shown
>>>>>> below. Additional manual cleanup may be required - please refer to
>>>>>> the "orte-clean" tool for assistance.
>>>>>>
>>>>>>
------------------------------------------------------------------------->>>>>>
-
>>>>>> domU-12-31-39-07-35-21.compute-1.internal - daemon did not report
>>>>>> back when launched
>>>>>>
>>>>>> Am I making progress?
>>>>>>
>>>>>> Does this mean I am past authentication and something else is the
>>>>>> problem?
>>>>>> Does someone have an example .ssh/config file I can look at? There are
>>>>>> so
>>>>>> many keyword-argument paris for this config file and I would like to look
>>>>>> at
>>>>>> some very basic one that works.
>>>>>>
>>>>>> Thank you.
>>>>>>
>>>>>> Tena Sakai
>>>>>> tsakai_at_[hidden]
>>>>>>
>>>>>> On 2/9/11 7:52 PM, "Tena Sakai" <tsakai_at_[hidden]> wrote:
>>>>>>
>>>>>>> Hi
>>>>>>>
>>>>>>> I have an app.ac1 file like below:
>>>>>>> [tsakai_at_vixen local]$ cat app.ac1
>>>>>>> -H vixen.egcrc.org -np 1 Rscript
>>>>>>> /Users/tsakai/Notes/R/parallel/Rmpi/local/fib.R 5
>>>>>>> -H vixen.egcrc.org -np 1 Rscript
>>>>>>> /Users/tsakai/Notes/R/parallel/Rmpi/local/fib.R 6
>>>>>>> -H blitzen.egcrc.org -np 1 Rscript
>>>>>>> /Users/tsakai/Notes/R/parallel/Rmpi/local/fib.R 7
>>>>>>> -H blitzen.egcrc.org -np 1 Rscript
>>>>>>> /Users/tsakai/Notes/R/parallel/Rmpi/local/fib.R 8
>>>>>>>
>>>>>>> The program I run is
>>>>>>> Rscript /Users/tsakai/Notes/R/parallel/Rmpi/local/fib.R x
>>>>>>> Where x is [5..8]. The machines vixen and blitzen each run 2 runs.
>>>>>>>
>>>>>>> Here¹s the program fib.R:
>>>>>>> [ tsakai_at_vixen local]$ cat fib.R
>>>>>>> # fib() computes, given index n, fibonacci number iteratively
>>>>>>> # here's the first dozen sequence (indexed from 0..11)
>>>>>>> # 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89
>>>>>>>
>>>>>>> fib <- function( n ) {
>>>>>>> a <- 0
>>>>>>> b <- 1
>>>>>>> for ( i in 1:n ) {
>>>>>>> t <- b
>>>>>>> b <- a
>>>>>>> a <- a + t
>>>>>>> }
>>>>>>> a
>>>>>>>
>>>>>>> arg <- commandArgs( TRUE )
>>>>>>> myHost <- system( 'hostname', intern=TRUE )
>>>>>>> cat( fib(arg), myHost, '\n' )
>>>>>>>
>>>>>>> It reads an argument from command line and produces a fibonacci number
>>>>>>> that
>>>>>>> corresponds to that index, followed by the machine name. Pretty simple
>>>>>>> stuff.
>>>>>>>
>>>>>>> Here¹s the run output:
>>>>>>> [tsakai_at_vixen local]$ mpirun -app app.ac1
>>>>>>> 5 vixen.egcrc.org
>>>>>>> 8 vixen.egcrc.org
>>>>>>> 13 blitzen.egcrc.org
>>>>>>> 21 blitzen.egcrc.org
>>>>>>>
>>>>>>> Which is exactly what I expect. So far so good.
>>>>>>>
>>>>>>> Now I want to run the same thing on cloud. I launch 2 instances of the
>>>>>>> same
>>>>>>> virtual machine, to which I get to by:
>>>>>>> [tsakai_at_vixen local]$ ssh ­A ­I ~/.ssh/tsakai
>>>>>>> machine-instance-A-public-dns
>>>>>>>
>>>>>>> Now I am on machine A:
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ # and I can go to machine B without
>>>>>>> password authentication,
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ # i.e., use public/private key
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ hostname
>>>>>>> domU-12-31-39-00-D1-F2
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ ssh -i .ssh/tsakai
>>>>>>> domU-12-31-39-0C-C8-01
>>>>>>> Last login: Wed Feb 9 20:51:48 2011 from 10.254.214.4
>>>>>>> [tsakai_at_domU-12-31-39-0C-C8-01 ~]$
>>>>>>> [tsakai_at_domU-12-31-39-0C-C8-01 ~]$ # I am now on machine B
>>>>>>> [tsakai_at_domU-12-31-39-0C-C8-01 ~]$ hostname
>>>>>>> domU-12-31-39-0C-C8-01
>>>>>>> [tsakai_at_domU-12-31-39-0C-C8-01 ~]$
>>>>>>> [tsakai_at_domU-12-31-39-0C-C8-01 ~]$ # now show I can get to machine A
>>>>>>> without using password
>>>>>>> [tsakai_at_domU-12-31-39-0C-C8-01 ~]$
>>>>>>> [tsakai_at_domU-12-31-39-0C-C8-01 ~]$ ssh -i .ssh/tsakai
>>>>>>> domU-12-31-39-00-D1-F2
>>>>>>> The authenticity of host 'domu-12-31-39-00-d1-f2 (10.254.214.4)' can't
>>>>>>> be established.
>>>>>>> RSA key fingerprint is
>>>>>>> e3:ad:75:b1:a4:63:7f:0f:c4:0b:10:71:f3:2f:21:81.
>>>>>>> Are you sure you want to continue connecting (yes/no)? yes
>>>>>>> Warning: Permanently added 'domu-12-31-39-00-d1-f2' (RSA) to the list
>>>>>>> of
>>>>>>> known hosts.
>>>>>>> Last login: Wed Feb 9 20:49:34 2011 from 10.215.203.239
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ hostname
>>>>>>> domU-12-31-39-00-D1-F2
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ exit
>>>>>>> logout
>>>>>>> Connection to domU-12-31-39-00-D1-F2 closed.
>>>>>>> [tsakai_at_domU-12-31-39-0C-C8-01 ~]$
>>>>>>> [tsakai_at_domU-12-31-39-0C-C8-01 ~]$ exit
>>>>>>> logout
>>>>>>> Connection to domU-12-31-39-0C-C8-01 closed.
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ # back at machine A
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ hostname
>>>>>>> domU-12-31-39-00-D1-F2
>>>>>>>
>>>>>>> As you can see, neither machine uses password for authentication; it
>>>>>>> uses
>>>>>>> public/private key pairs. There is no problem (that I can see) for ssh
>>>>>>> invocation
>>>>>>> from one machine to the other. This is so because I have a copy of
>>>>>>> public
>>>>>>> key
>>>>>>> and a copy of private key on each instance.
>>>>>>>
>>>>>>> The app.ac file is identical, except the node names:
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ cat app.ac1
>>>>>>> -H domU-12-31-39-00-D1-F2 -np 1 Rscript /home/tsakai/fib.R 5
>>>>>>> -H domU-12-31-39-00-D1-F2 -np 1 Rscript /home/tsakai/fib.R 6
>>>>>>> -H domU-12-31-39-0C-C8-01 -np 1 Rscript /home/tsakai/fib.R 7
>>>>>>> -H domU-12-31-39-0C-C8-01 -np 1 Rscript /home/tsakai/fib.R 8
>>>>>>>
>>>>>>> Here¹s what happens with mpirun:
>>>>>>>
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$ mpirun -app app.ac1
>>>>>>> tsakai_at_domu-12-31-39-0c-c8-01's password:
>>>>>>> Permission denied, please try again.
>>>>>>> tsakai_at_domu-12-31-39-0c-c8-01's password: mpirun: killing job...
>>>>>>>
>>>>>>>
>>>>>>> ------------------------------------------------------------------------
>>>>>>> --
>>>>>>> mpirun noticed that the job aborted, but has no info as to the process
>>>>>>> that caused that situation.
>>>>>>>
>>>>>>> ------------------------------------------------------------------------
>>>>>>> --
>>>>>>>
>>>>>>> mpirun: clean termination accomplished
>>>>>>>
>>>>>>> [tsakai_at_domU-12-31-39-00-D1-F2 ~]$
>>>>>>>
>>>>>>> Mpirun (or somebody else?) asks me password, which I don¹t have.
>>>>>>> I end up typing control-C.
>>>>>>>
>>>>>>> Here¹s my question:
>>>>>>> How can I get past authentication by mpirun where there is no password?
>>>>>>>
>>>>>>> I would appreciate your help/insight greatly.
>>>>>>>
>>>>>>> Thank you.
>>>>>>>
>>>>>>> Tena Sakai
>>>>>>> tsakai_at_[hidden]
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>> _______________________________________________
>>>>>> users mailing list
>>>>>> users_at_[hidden]
>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> users mailing list
>>>>> users_at_[hidden]
>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>>
>>>>
>>>> _______________________________________________
>>>> users mailing list
>>>> users_at_[hidden]
>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>>
>>>
>>>
>>> _______________________________________________
>>> users mailing list
>>> users_at_[hidden]
>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>
>> <session4Reuti.text>_______________________________________________
>> users mailing list
>> users_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
>
>
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