<br>Hi Will,<br> mpd is been replaced by hydra which is now the default process manager for MPICH2. and if you want to verify whether mpich2 has been installed then check whether 'mpiexec' , 'mpicc' are present, for this you have to execute this command 'which mpicc' 'which mpiexec'.<br>
And regarding the machinefile and executing MPI programs on a cluster follow steps given in this link <a href="http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager">http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager</a>.<br>
<br>Regards,<br>-- Mahesh Doijade. <br><span style="font-size: large;"> </span><br><br><div class="gmail_quote">2011/8/15 张巍 <span dir="ltr"><<a href="mailto:zhweizi@126.com">zhweizi@126.com</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div><div><span style="font-size: large;">Hi, I'm an amateur of Linux, and studying in Cluster with MPI recently. The version which I downloaded is the newest "mpich2-1.4", and OS is Red Hat Enterprise Linux 4 ES. I have two questions to be consulted, and appreciate for your attention. </span></div>
<div><span style="font-size: large;"><br></span></div><div><span style="font-size: large;">First, in the manual "Installer's Guide", 2.2-8, I should use command "which mpicc" and "which mpiexec" to check my installation. But according to informations I've found in internet, they all said there should be four command: "which mpd", "which mpicc", "which mpiexec" and "which mpirun" . And some guy tells me command "mpd" is replaced by other commands like "hydra" or etc. I don't know if I can't use "mpd" command, means that the MPICH program has not been installed successfully?
</span></div><div><span style="font-size: large;"><br></span></div><div><span style="font-size: large;">Second, in the manual "Installer's Guide", 2.2-10, I should modify the "machinefile" to ensure every computer is listed in the cluster, but, I can't find a way to modify or open the "machinefile".</span></div>
<div><span style="font-size: large;"><br></span></div><div><span style="font-size: large;">Sorry to take your time, and waiting for your reply. <br><br></span></div></div><div><span style="font-size: large;">Best regards.</span></div>
<div><span style="font-size: large;"><br></span></div><div><span style="font-size: large;"> &nb
sp; Will ZHANG </span></div><div><span style="font-size: large;"> Tongji University, Shanghai, China</span></div>
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