[mpich-discuss] installing and using MPI_PUBLISH_NAME andMPI_LOOKUP_NAME with mpich2

[Dave Goodell]

Be aware that Leon's advise is exactly the opposite of what we (the MPICH2 developers) would recommend.  The mpd process manager is deprecated and we really don't support it anymore.

-Dave

On Jun 16, 2011, at 7:40 AM CDT, Bernard Secher - SFME/LGLS wrote:

> My test program work very well with opnempi, but I want to use mpich2 too, if it is possible...
> 
> How can I use mpd  with mpich2 ?
> 
> Leon Yuhanov a écrit :
>> hey,ditch hydra. use mpd its easier for quick simple stuff. move onto lam-mpi or open-mpi after that.
>> 
>> 
>> Bernard Secher - SFME/LGLS 
>> <bernard.secher at cea.fr>
>>  wrote:
>> 
>> When I tried to use hydra_nameserver I get the followinf error message 
>> when I launch my application:
>> 
>> [secher at is209011 essai]$ [mpiexec at is209011] HYDU_sock_read 
>> (/data/tmplgls/secher/mpich2-1.3.2p1-src/src/pm/hydra/utils/sock/sock.c:223): 
>> read errno (Input/output error)
>> [mpiexec at is209011] control_cb 
>> (/data/tmplgls/secher/mpich2-1.3.2p1-src/src/pm/hydra/pm/pmiserv/pmiserv_cb.c:249): 
>> assert (!closed) failed
>> [mpiexec at is209011] HYDT_dmxu_poll_wait_for_event 
>> (/data/tmplgls/secher/mpich2-1.3.2p1-src/src/pm/hydra/tools/demux/demux_poll.c:77): 
>> callback returned error status
>> [mpiexec at is209011] HYD_pmci_wait_for_completion 
>> (/data/tmplgls/secher/mpich2-1.3.2p1-src/src/pm/hydra/pm/pmiserv/pmiserv_pmci.c:206): 
>> error waiting for event
>> [mpiexec at is209011] main 
>> (/data/tmplgls/secher/mpich2-1.3.2p1-src/src/pm/hydra/ui/mpich/mpiexec.c:404): 
>> process manager error waiting for completion
>> 
>> What is wrong
>> 
>> My application is just a little test program. I have attached it to this 
>> message.
>> 
>> Bernard
>> 
>> Pavan Balaji a écrit :
>>   
>> 
>>> [please keep mpich-discuss cc'ed]
>>> 
>>> On 06/16/2011 02:18 AM, Bernard Secher - SFME/LGLS wrote:
>>>     
>>> 
>>>> How can I use the default publish mechanism? My Publish/lookup is
>>>> hapenning between two different applications. Is there an option to give
>>>> to mpiexec for that ?
>>>>       
>>>> 
>>> Do you have a shared file-system? If yes, you don't need to modify 
>>> anything. It should just work. If no, then read below:
>>> 
>>>     
>>> 
>>>> If I use the pmi option, the mpiexec -nameserver -help give the
>>>> following message:
>>>> -nameserver: Nameserver to use for publish/lookup (format is host:port)
>>>> 
>>>> I don't understand what I have to do with this option.
>>>> First I launch the hydra_nameserver . Do I give some options to
>>>> hydra_nameserver ? Do I give some options then, to the two mpiexec to
>>>> launch my two applications?
>>>>       
>>>> 
>>> There are no options required for hydra_nameserver. The two mpiexec's 
>>> will need the -nameserver {hostname} option, where {hostname} is the 
>>> name of the host where the nameserver is running.
>>> 
>>>  -- Pavan
>>> 
>>>     
>>> 
>> 
>> 
>>   
>> 
> 
> 
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