Re: [OMPI users] How does authentication between nodes work without password? (Newbie alert on)

2011-02-15 Thread Tena Sakai
Hi Gus, Please read my comments inline. On 2/14/11 7:05 PM, "Gus Correa" wrote: > Hi Tena > > Answers inline. > > Tena Sakai wrote: >> Hi Gus, >> >>> Hence, I don't understand why the lack of symmetry in the >>> firewall protection. >>> Either vixen's is too loose, or dashen's is too tight, I'

[OMPI users] MPI_TYPE_CREATE_SUBARRAY not in mpif90 library

2011-02-15 Thread Petit, George (Cont, ARL/CISD)
A user posted the following ticket to our site. Should the referenced MPI routine be included in the mpif90 library? If not, why? And is there a way to get it added. ---

[OMPI users] Use mca_base_param_file_path to set .ssh?

2011-02-15 Thread Barnet Wagman
I need to find a way of controlling the rsa key used when open-mpi uses ssh to access hosts. By default, ssh uses the ~/.ssh/id_rsa However, I need to set the key used without messing around with users' .ssh directories. It appears that in a default installation of open-mpi, ~/.ssh is specf

Re: [OMPI users] Use mca_base_param_file_path to set .ssh?

2011-02-15 Thread Ralph Castain
OMPI doesn't do anything relative to the .ssh directory, or what key is used for ssh authentication. Afraid that is one you have to solve at the system level :-/ On Feb 15, 2011, at 11:35 AM, Barnet Wagman wrote: > I need to find a way of controlling the rsa key used when open-mpi uses ssh >

Re: [OMPI users] Use mca_base_param_file_path to set .ssh?

2011-02-15 Thread Barnet Wagman
> OMPI doesn't do anything relative to the .ssh directory, or what key > is used for ssh authentication. > > Afraid that is one you have to solve at the system level :-/ ^ In that case, where and how does OMPI call ssh? ssh has a '-i' option which can be used to specify the id_rsa file. /If/ ss

Re: [OMPI users] Use mca_base_param_file_path to set .ssh?

2011-02-15 Thread Ralph Castain
Setting the mca param plm_rsh_agent to "ssh -i xxx" should do the trick, I think - haven't tried it, but it should work. On Feb 15, 2011, at 12:24 PM, Barnet Wagman wrote: > >> OMPI doesn't do anything relative to the .ssh directory, or what key is used >> for ssh authentication. >> >> Afrai

[OMPI users] This must be ssh problem, but I can't figure out what it is...

2011-02-15 Thread Tena Sakai
Hi, I am trying to reproduce what I was able to show last Friday on Amazon EC2 instances, but I am having a problem. What I was able to show last Friday as root was with this command: mpirun –app app.ac with app.ac being: -H dns-entry-A –np 1 (linux command) -H dns-entry-A –np 1 (linux comm

Re: [OMPI users] Use mca_base_param_file_path to set .ssh?

2011-02-15 Thread Barnet Wagman
On 2/15/11 1:31 PM, Ralph Castain wrote: > Setting the mca param plm_rsh_agent to "ssh -i xxx" should do the > trick, I think - haven't tried it, but it should work. ^ It does work. thanks

Re: [OMPI users] This must be ssh problem, but I can't figure out what it is...

2011-02-15 Thread Gus Correa
Tena Sakai wrote: Hi, I am trying to reproduce what I was able to show last Friday on Amazon EC2 instances, but I am having a problem. What I was able to show last Friday as root was with this command: mpirun –app app.ac with app.ac being: -H dns-entry-A –np 1 (linux command) -H dns-entry