"cannot connect to local mpd"

susruta101 · 12-05-2010, 04:13 PM

Hello all,

I use a Linux cluster to run robust simulations in our institution. We use a PBS script to run the mpiexec command for the jobs.

Recently, I am facing a problem that whenever I am trying to run a job, it terminates with the following error...

"cannot connect to local mpd (/tmp/mpd2.console_myusername)";
possible causes
1. no mpd is running on the host
2. an mpd is running but was started with a 'console' (-n option)"

Could you please help me out with this? I am having this problem after I installed ifort (Intel Fortran compiler suite) in the cluster.

Let me know what information I have to add.

Regards.

Reuti · 12-06-2010, 04:55 AM

Hi,

which MPI implementation do you intend to use? The issue sounds like you are now getting a different mpiexec which is based on MPICH2, but you want to use something different. Hence the paths in the script need to be adjusted to get the right mpiexec again.

Or do you want to use MPICH2, but even then you may have two versions now in the system.

You only installed Intel Fortran, not Intel's cluster tools? The Intel MPI (which is based on MPICH2) shouldn't be installed by the plain Fortran compiler.

kishoreragi · 04-10-2014, 07:45 AM

Simply open .mpd.conf file in your home directory and set secretword you like

Then change permission to you only with

chmod 700 .mod.conf

Hope your problem is solved... Now you need not to run mpd on the other terminal..

Cheers !!!

dante_t · 06-05-2018, 05:32 AM

Hi Guyz,

Im sorry for opening an old post but i have the same problem.

Quote:

Originally Posted by Reuti

Hi,

which MPI implementation do you intend to use? The issue sounds like you are now getting a different mpiexec which is based on MPICH2, but you want to use something different. Hence the paths in the script need to be adjusted to get the right mpiexec again.

Or do you want to use MPICH2, but even then you may have two versions now in the system.

You only installed Intel Fortran, not Intel's cluster tools? The Intel MPI (which is based on MPICH2) shouldn't be installed by the plain Fortran compiler.

That is what I thought but I dont know how to solve path issues. I tried to do the following in my script:

Code:

#!/bin/bash
cd /usr/local/eskom/mpich2-1.4.1p1/bin
mpd -n &

I get this error:

Code:

mpiexec_localhost.localdomain: cannot connect to local mpd (/tmp/mpd2.console_eskom); possible causes:
  1. no mpd is running on this host
  2. an mpd is running but was started without a "console" (-n option)
In case 1, you can start an mpd on this host with:
    mpd &
and you will be able to run jobs just on this host.
For more details on starting mpds on a set of hosts, see
the MPICH2 Installation Guide.

when im running this command directly on the terminal, it runs, but when i do it through script it doesnt. what is it that im doing wrong?

Quote:

Originally Posted by kishoreragi

Simply open .mpd.conf file in your home directory and set secretword you like

Then change permission to you only with

chmod 700 .mod.conf

Hope your problem is solved... Now you need not to run mpd on the other terminal..

Cheers !!!

I have already tried this and it doesnt work.

Can anyone show me step by step how i can resolve this?

Regards
Dante