[mpich-discuss] ssh passwordless works fine, but mpdboot still needs password.

[Reuti]

Am 17.07.2011 um 07:33 schrieb greatlzy:

> ssh passwordless works fine, but mpdboot still needs password.
>  
> I want to setup a local network MPI environment (only 2 machines).
>  
> I have set the same username(abc) and the same password(123) on machine A and machine B ,and ssh passworless works fine on both side.

You connect from another machine C to A and B, or is A your desktop one?


> I installed the mpich2 on machine A (/mpich), the file .mpd.conf is in /home/abc , the file mpd.hosts is in /mpich.
> and export the dir (/mpich) and /home/abc using NFS server,then machine B mounts them to /mpich and /home/mpich respectively.
>  
> In machine A, the command "mpdboot -n 2 -f /cluster/mpd.hosts" prompts to intput the password of the user abc on machineB, when I input the passwrod '123', mpd starts successfully.
>  
> Why mpdboot needs abc at machineB's password? What should I do?
>  
> Thanks a lot
>  
> ubuntu 11.04
> mpich2-1.0.8

Please try the latest version 1.4 which doesn't use mpd any longer but a daemonless startup of the tasks on slave nodes. You can compile it on your into $HOME/local/mpich2-1.4 or alike and set an appropriate PATH thereto.

Was the 1.0.8 instealled ubuntu by default?

-- Reuti


> Li Zhiyu
> student in GUCAS
>  
> 2011-07-17
> greatlzy
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