[mpich-discuss] MPICH error on CentOS

[bharat gupta]

I don't know much about mpi , as I am using gromacs which was complied with
mpi option. , But I read somewhere that

 " If a file named .mpd.conf is available in the user's home directory,
only the user can have read and write privileges. The file must minimally
contain a line with secretword=*<secretword>*. If you want to run MPD as
root, create the mpd.conf file in the /etc directory instead of .mpd.conf in
the root's home directory to run mpd as root. Avoid starting the MPD ring
under the root account." Here'e the link
http://software.intel.com/sites/products/documentation/hpc/ics/impi/41/lin/Reference_Manual/Multipurpose_Daemon_Commands.htm

And after using chmod 700 , I still get the same error, but when I create a
file mpd.conf in /etc I get the and added the secretword=<secretword> line
in the file and run the same command, I get this error:-

root at localhost INGT]# mpirun -np 24 mdrun -v -deffnm mdrun
mpdroot: perror msg: No such file or directory
mpdroot: cannot connect to local mpd at: /tmp/mpd2.console_root
    probable cause:  no mpd daemon on this machine
    possible cause:  unix socket /tmp/mpd2.console_root has been removed
mpiexec_localhost.localdomain (__init__ 1208): forked process failed;
status=255


On Thu, Nov 7, 2013 at 9:11 AM, Ricardo Román Brenes <
roman.ricardo at gmail.com> wrote:

> Try using chmod 700.  Can you run any other mpi example? Like cpi.c
> On Nov 6, 2013 6:08 PM, "bharat gupta" <bharat.85.monu at gmail.com> wrote:
>
>> It have changed the file permission (rw) for root , ls -l mpd.hosts gives
>> the output
>> -rw-r--r--, 1 root root
>>
>>
>> On Thu, Nov 7, 2013 at 9:02 AM, Ricardo Román Brenes <
>> roman.ricardo at gmail.com> wrote:
>>
>>> With rwx permission just for root?
>>> On Nov 6, 2013 6:00 PM, "bharat gupta" <bharat.85.monu at gmail.com> wrote:
>>>
>>>> I have created the file mpd.hosts in /etc folder in the root , but
>>>> still it shows the same error ... /usr/bin/mpdroot: open failed for
>>>> root's mpd conf filempiexec_localhost.localdomain (__init__ 1208):
>>>> forked process failed; status=255
>>>>
>>>>
>>>> On Thu, Nov 7, 2013 at 8:45 AM, Ricardo Román Brenes <
>>>> roman.ricardo at gmail.com> wrote:
>>>>
>>>>> You need to create a mpd.hosts in /etc if you want to run mpd as root
>>>>> On Nov 6, 2013 5:41 PM, "bharat gupta" <bharat.85.monu at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I am getting the following error while using the command -
>>>>>>
>>>>>> [root at localhost INGT]# mpirun -np 24 mdrun_mpi -v -deffnm npt
>>>>>>
>>>>>> Error -
>>>>>>
>>>>>> /usr/bin/mpdroot: open failed for root's mpd conf
>>>>>> filempiexec_localhost.localdomain (__init__ 1208): forked process failed;
>>>>>> status=255
>>>>>>
>>>>>> I complied gromacs using - ./configure --enable-shared --enable-mpi.
>>>>>> I have installed the mpich package , this is what I get when I check for
>>>>>> mpirun and mpiexec -
>>>>>>
>>>>>> [root at localhost /]# which mpirun
>>>>>> /usr/bin/mpirun
>>>>>> [root at localhost /]# which mpiexec
>>>>>> /usr/bin/mpiexec
>>>>>>
>>>>>> What could be the problem here ??
>>>>>>
>>>>>> Thanks
>>>>>> --------
>>>>>> Bharat
>>>>>>
>>>>>>
>>>>>>
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>>>>>
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>>>>
>>>>
>>>>
>>>> --
>>>> Bharat
>>>> Ph.D. Candidate
>>>> Biomolecular Engineering Laboratory
>>>> Pusan National University
>>>> South Korea
>>>> Mobile no. - 010-5818-3680
>>>>
>>>>
>>>> _______________________________________________
>>>> discuss mailing list     discuss at mpich.org
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>>>
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>>
>>
>>
>> --
>> Bharat
>> Ph.D. Candidate
>> Biomolecular Engineering Laboratory
>> Pusan National University
>> South Korea
>> Mobile no. - 010-5818-3680
>>
>>
>> _______________________________________________
>> discuss mailing list     discuss at mpich.org
>> To manage subscription options or unsubscribe:
>> https://lists.mpich.org/mailman/listinfo/discuss
>>
>
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-- 
Bharat
Ph.D. Candidate
Biomolecular Engineering Laboratory
Pusan National University
South Korea
Mobile no. - 010-5818-3680
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