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mpd error

Dear Sir,
Whne I try to run the below the command I have been receiving the following error
mpdboot -n 3 -f /root/mpd.hosts -r ssh
mpdboot_hpcmas02.kfupm.edu.sa (handle_mpd_output 883): Failed to establish a socket connection with hpc073:55160 : (111, 'Connection refused')
mpdboot_hpcmas02.kfupm.edu.sa (handle_mpd_output 900): failed to connect to mpd on hpc073

here mpd is running
passwordless ssh is ok with all clients
/tmp has write permission to the user

Could you please give a help for me.What is the reason for this error.

When I run the program I have been getting this error.
mpirun -r ssh ./naba.exe
mpdboot_hpcmas02.kfupm.edu.sa (handle_mpd_output 892): failed to ping mpd on hpc073; received output={}.


Kindly help us... Please
Iam looking froward from you.
Regards
HPC Linux
KFUPM
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Hi,

Could you please provide the following information:
1) mpiexec -V
2) cat /root/mpd.hosts
3) ssh hpc073 (and ps ux on this node)
4) ssh to another node (and ps ux)
5) mpirun -r ssh -f /root/mpd.hosts -n 3 -d

Do you have a firewall?

Regards!
Dmitry

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