Let's try to force the usage of ssh.
mpirun --mca plm rsh hostname
If not, go in the installation directory and rename lib/openmpi/mca_plm_rsh.* to something without the .la and .so extension. Then re-run the hostname via mpirun.
On Feb 7, 2012, at 06:32 , James Torossian wrote:
I agree. I think that I am somehow using WMI, but this is happening both with the Open-MPI windows binary (OpenMPI_v1.5.4-1_win32.exe) and also with versions of the binaries I built (1.4.3 & 1.5.1 from svn). What do I have to do to get OpenMPI to use ssh instead of WMI. From what I can see of the configuration with ompi_info, the following seems correct: Package: Open MPI hpcfan@VISCLUSTER26 Distribution Open MPI SVN revision: r25060 Open MPI release date: Aug 18, 2011 Open RTE SVN revision: r25060 Open RTE release date: Aug 18, 2011 OPAL SVN revision: r25060 OPAL release date: Aug 18, 2011 MCA orte: parameter "orte_rsh_agent" (current value: <ssh : rsh>,
. MCA plm: parameter "plm_rsh_agent" (current value: <ssh : rsh>,
. Is there a cmake configuration option I need to set for a Windows build to use ssh? Is there some environment or package configuration option I need to set? Thanks again for your help, I am keen to know what I am missing. From: Shiqing Fan [mailto:firstname.lastname@example.org]
Sent: Tuesday, February 07, 2012 8:20 PM
To: Open MPI Users; email@example.com
Cc: Ralph Castain
Subject: Re: [OMPI users] O-MPI Support for Windows 7
One other possibility could be that ssh is actually not used at all. Did you build Open MPI under Cygwin? Is the ssh module shown up in the ompi_info output?
The user credential message looks very familiar to me as it seems from the WMI (Windows Management Instrumentation) module, where the 'save credential' option has not been implemented.
On 2012-02-07 4:11 AM, Ralph Castain wrote:
Afraid I'm no OpenSSH expert, but it sounds like there is an issue with its configuration. Check out the OpenSSH config options to see if something fits.
I did a quick search and found this, as an example:
Note the need to run ssh-agent to cache login credentials.
On Feb 6, 2012, at 5:05 PM, James Torossian wrote:
I am trying to setup Open-MPI across two Windows 7 machines with UAC disabled
Cygwin with OpenSSH is installed, and I can successfully ssh to each machine without entry of username and password: Last login: Tue Feb 7 01:42:02 2012 from jimt-pc Regardless of this, mpirun insists on asking for a username and password; then asks to save credentials, but if selected, responds with not implemented. If saving credentials is not selected, then I can see that the task starts on the other machine (in task manager) and that the task runs to completion OK: $ mpirun -H NanoOneQuad ipconfig.exe connecting to NanoOneQuad [JimT-PC:03784] This feature hasn't been implemented yet. $ mpirun -H NanoOneQuad ipconfig.exe connecting to NanoOneQuad Please let me know what I have missed. I have gone through the FAQs and have rebuilt the windows version but cant seem to get past this.
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