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<DIV>ssh&nbsp;passwordless&nbsp;works&nbsp;fine,&nbsp;but&nbsp;mpdboot&nbsp;still&nbsp;needs&nbsp;password.</DIV>

<DIV></DIV>

<DIV>&nbsp;</DIV>

<DIV>I&nbsp;want&nbsp;to&nbsp;setup&nbsp;a&nbsp;local&nbsp;network&nbsp;MPI&nbsp;environment&nbsp;(only&nbsp;2&nbsp;machines).</DIV>

<DIV></DIV>

<DIV>&nbsp;</DIV>

<DIV>I&nbsp;have&nbsp;set&nbsp;the&nbsp;same&nbsp;username(abc)&nbsp;and&nbsp;the&nbsp;same&nbsp;password(123)&nbsp;on&nbsp;machine&nbsp;A&nbsp;and&nbsp;machine&nbsp;B&nbsp;,and&nbsp;ssh&nbsp;passworless&nbsp;works&nbsp;fine&nbsp;on&nbsp;both&nbsp;side.</DIV>

<DIV></DIV>

<DIV>&nbsp;</DIV>

<DIV>I&nbsp;installed&nbsp;the&nbsp;mpich2&nbsp;on&nbsp;machine&nbsp;A&nbsp;(/mpich),&nbsp;the&nbsp;file&nbsp;.mpd.conf&nbsp;is&nbsp;in&nbsp;/home/abc&nbsp;,&nbsp;the&nbsp;file&nbsp;mpd.hosts&nbsp;is&nbsp;in&nbsp;/mpich.</DIV>

<DIV>and&nbsp;export&nbsp;the&nbsp;dir&nbsp;(/mpich)&nbsp;and&nbsp;/home/abc&nbsp;using&nbsp;NFS&nbsp;server,then&nbsp;machine&nbsp;B&nbsp;mounts&nbsp;them&nbsp;to&nbsp;/mpich&nbsp;and&nbsp;/home/mpich&nbsp;respectively.</DIV>

<DIV></DIV>

<DIV>&nbsp;</DIV>

<DIV>In&nbsp;machine&nbsp;A,&nbsp;the&nbsp;command&nbsp;"mpdboot&nbsp;-n&nbsp;2&nbsp;-f&nbsp;/cluster/mpd.hosts"&nbsp;prompts&nbsp;to&nbsp;intput&nbsp;the&nbsp;password&nbsp;of&nbsp;the&nbsp;user&nbsp;abc&nbsp;on&nbsp;machineB,&nbsp;when&nbsp;I&nbsp;input&nbsp;the&nbsp;passwrod&nbsp;'123',&nbsp;mpd&nbsp;starts&nbsp;successfully.</DIV>

<DIV>&nbsp;</DIV>

<DIV>Why&nbsp;mpdboot&nbsp;needs&nbsp;abc@machineB's&nbsp;password?&nbsp;What&nbsp;should&nbsp;I&nbsp;do?</DIV>

<DIV></DIV>

<DIV>&nbsp;</DIV>

<DIV>Thanks&nbsp;a&nbsp;lot</DIV>

<DIV></DIV>

<DIV>&nbsp;</DIV>

<DIV>ubuntu&nbsp;11.04</DIV>

<DIV>mpich2-1.0.8</DIV>

<DIV></DIV>

<DIV>&nbsp;</DIV>

<DIV>Li&nbsp;Zhiyu</DIV>

<DIV>student&nbsp;in&nbsp;GUCAS</DIV></FONT></DIV>

<DIV><FONT size=2 face=Verdana></FONT>&nbsp;</DIV>

<DIV align=left><FONT color=#c0c0c0 size=2 face=Verdana>2011-07-17 

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<DIV><FONT color=#c0c0c0 size=2 face=Verdana><SPAN>greatlzy</SPAN> 

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