Yes it is HYDRA_HOST_FILE sorry for typo...<br>Also when I run ./cpi without setting hostfile, on single machine it works fine.<br> Here is its sample output:<br><br>[root@beowulf ~]# mpiexec -n 4 /opt/mpich2-1.4.1p1/examples/./cpi<br>
Process 0 of 4 is on beowulf.master<br>Process 3 of 4 is on beowulf.master<br>Process 2 of 4 is on beowulf.master<br>Process 1 of 4 is on beowulf.master<br>pi is approximately 3.1415926544231239, Error is 0.0000000008333307<br>
wall clock time = 0.000333<br>[root@beowulf ~]#<br><br><div class="gmail_quote">On Tue, May 1, 2012 at 7:13 PM, Pavan Balaji <span dir="ltr"><<a href="mailto:balaji@mcs.anl.gov" target="_blank">balaji@mcs.anl.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im"><br>
On 05/01/2012 05:30 AM, Albert Spade wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I also set environment for Hydra process manager by adding<br>
export HYDRA_FILE=/root/hosts<br>
in .bashrc file in /root<br>
</blockquote>
<br></div>
Did you mean to set HYDRA_HOST_FILE?<br>
<br>
Can you try running ./cpi without setting the HYDRA_HOST_FILE first?<span class="HOEnZb"><font color="#888888"><br>
<br>
-- Pavan<br>
<br>
-- <br>
Pavan Balaji<br>
<a href="http://www.mcs.anl.gov/%7Ebalaji" target="_blank">http://www.mcs.anl.gov/~balaji</a><br>
</font></span></blockquote></div><br>