Hi<br><br>I am using MPICH2 on two nodes. <br>when I write in the terminal <br><br>"hisham@hisham:~> mpdboot -n 2 -f mpd.hosts".<br><br>to run mpd on all nodes it ask me for password....<br>when i enter my password it don't accept it also when i enter the password of the other node it dont accept it...<br>where mpd.hosts contains "rania"."rania" is the other node.<br><br>what is the problem ?<br><br>hisham@hisham:~> mpdboot -n 2 -f mpd.hosts<br>Password:<br>Password:<br>Password:<br>mpdboot_hisham (handle_mpd_output 399): from mpd on rania, invalid port info:<br><br><br><br><br><BR><BR><font size="5">Hisham Adel Hassan</font><br><p> 
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