[dolfus]

Hello foamers,


I'm trying to run a case in parallel in a single machine wich has installed centOS 7 with 4 processors. BlockMesh it's okay but when running

mpirun -np 4 interFoam -parallel

an error shows up:

The value of the MCA parameter "plm_rsh_agent" was set to a path
that could not be found:

  plm_rsh_agent: ssh : rsh

Please either unset the parameter, or check that the path is correct

I've been triying to fix it, changing the vaule of the mca parameter but the error persists. I guess maybe it has something to do with docker, I'm not pretty sure.


Hope you could help me,


Regards.

[hiaselhans]

Hi Dofus,


i had the same problem and ended up using openfoam5-linux.

the problem tells that openssh_client is missing.
you can install openssh_client in your container like this:

sudo openfoam6-linux
apt update
apt install openssh_client

then, from another terminal get the container id or name with

[simon@simonpc ~]$ docker ps
 CONTAINER ID        IMAGE                           COMMAND                  CREATED             STATUS              PORTS               NAMES
50e05c988d80        openfoam/openfoam6-paraview56   "/bin/sh -c '/bin/sh…"   5 minutes ago       Up 5 minutes                            inspiring_stonebraker

[simon@simonpc ~]$ docker commit inspiring_stonebraker openfoam/openfoam6-paraview56

by this it should be installed in the image when you run "openfoam6-linux"
It solved that issue for me but still my logs are spammed with a lot of "Read -1, expected XXX" and i run cases either in foam5 or not parallel.


i opened a bug report here:
https://bugs.openfoam.org/view.php?id=3163


let me know what is your result..


peace

[dolfus]

Thank you for your prompt reply. Unfortunately it didn't solve the problem so i ended up installing ubuntu server instead of centOS.

[hiaselhans]

Hi Dolfus,


it seems the issue has been resolved:
https://bugs.openfoam.org/view.php?id=3163


i just did a "docker pull openfoam/openfoam6-paraview56" and i'm runnning fine now with no bugs.


peace!
Simon

[dokeun]

Hello there
I'm using OpenFoam-dev-parpaview56 in docker and I got the same log message.
So I ran the command 'docker pull openfoam/openfoam-dev-paraview56' but the same errors I got.
After searching for the answer, I found a thread that seems to be a solution but I can't understand their words especially last ones.
Would you please let me know what means and how to "Update dockerfile for MPI (required by gmsh) " in attached image and url below
https://github.com/open-mpi/ompi/issues/3625
Sincerely yours.

--------------------------------------------------------------------------
The value of the MCA parameter "plm_rsh_agent" was set to a path
that could not be found:

  plm_rsh_agent: ssh : rsh

Please either unset the parameter, or check that the path is correct
--------------------------------------------------------------------------

I'd run OpenFOAM by typing 'OpenFoam-dev-macos'.
I changed the method to run by typing 'docker run -i -t <image#> -v <host dir>:<container dir>'
And the problem solved...