[mpich-discuss] looking for help

[Mahesh Doijade]

Hi Will,
           You have to create the machinefile on your own and you can give
it any name as you desire and the format in which you write process to node
mappings in the machinefile should be in the manner as mentioned in the
before given link. Also first check out whether you are done with ssh
passwordless login between nodes on which you want to run your MPI program.
Also mpiexec syntax given by u seems to be wrong it should "mpiexec -f
machinefile -np "no-of-processes" "./name-of-your-mpi-executable".



Regards,
-- Mahesh Doijade



2011/8/24 张巍 <zhweizi at 126.com>

> Hi Mahesh, thanks for your reply, I re-install mpich2-1.4, and here are
> "c.txt", "m.txt", "mi.txt",.
>
> After "make", "make install", "Add the bin subdirectory", "check my 'mpicc'
> and 'mpiexec' ", "ssh", when I type:
>  "mpiexec -f machinefile -n hostname" , it's said the "machinefile" can't
> be found.
>
> I know machinefile must be overwrite with hostname and number of
> processors, however, I just can't find machiefile in my computer...
>
> I hate myself....
>
> Sorry to disturb you again, and with my regards.
>
> Will ZHANG
>
>
> At 2011-08-15 23:44:51,"Mahesh Doijade" <maheshdoijade at gmail.com> wrote:
>
>
> Hi Will,
>             mpd is been replaced by hydra which is now the default process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'.
> And regarding the machinefile and executing MPI programs on a cluster
> follow steps given in this link
> http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager.
>
> Regards,
> -- Mahesh Doijade.
>
>
> 2011/8/15 张巍 <zhweizi at 126.com>
>
>> 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.
>>
>> 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?
>>
>> 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".
>>
>> Sorry to take your time, and waiting for your reply.
>>
>> Best regards.
>>
>>                                                &nb sp;
>>             Will ZHANG
>>
>>    Tongji University, Shanghai, China
>>
>>
>>
>> _______________________________________________
>> mpich-discuss mailing list
>> mpich-discuss at mcs.anl.gov
>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>>
>>
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