[mpich-discuss] Problem with spawning child with same executable name

[Pavan Balaji]

Aha! Yes, I can reproduce it with this command. Thanks.

I've created a ticket for it, and added you to the cc list. 
https://trac.mcs.anl.gov/projects/mpich2/ticket/1432

  -- Pavan

On 02/08/2011 12:08 PM, Yauheni Zelenko wrote:
> Hi, Pavan!
>
> Please try mpiexec -host "localhost:4" -n 1 /Spawn
>
> Eugene.
> ________________________________________
> From: Pavan Balaji [balaji at mcs.anl.gov]
> Sent: Monday, February 07, 2011 9:45 PM
> To: mpich-discuss at mcs.anl.gov
> Cc: Yauheni Zelenko
> Subject: Re: [mpich-discuss] Problem with spawning child with same executable name
>
> I did. See the examples below.
>
>    -- Pavan
>
> On 02/07/2011 11:53 AM, Yauheni Zelenko wrote:
>> Hi, Pavan!
>>
>> It's necessary to run "mpiexec -n 1 /Spawn" in configuration with several hosts (universe size>   1).
>>
>> Eugene
>> ________________________________________
>> From: Pavan Balaji [balaji at mcs.anl.gov]
>> Sent: Saturday, February 05, 2011 2:03 AM
>> To: mpich-discuss at mcs.anl.gov
>> Cc: Yauheni Zelenko
>> Subject: Re: [mpich-discuss] Problem with spawning child with same executable name
>>
>> I'm not able to reproduce this problem. This is what I did (attached is
>> a slightly modified Spawn.c):
>>
>> % mpicc Spawn.c -o Spawn
>>
>> % mpicc SpawnChild.c -o SpawnChild
>>
>> % mpiexec ./Spawn ./Spawn
>> Start process 0 of 1 on snowflake in universe of 1
>>
>> % mpiexec ./Spawn ./SpawnChild
>> Start process 0 of 1 on snowflake in universe of 1
>>
>> % mpiexec -n 2 ./Spawn ./Spawn
>> Start process 1 of 2 on snowflake in universe of 1
>> Start process 0 of 2 on snowflake in universe of 1
>>
>> % mpiexec -n 2 ./Spawn ./SpawnChild
>> Start process 0 of 2 on snowflake in universe of 1
>> Start process 1 of 2 on snowflake in universe of 1
>>
>> % mpiexec -n 2 -hosts localhost,127.0.1.1 ./Spawn ./Spawn
>> Start process 1 of 2 on snowflake in universe of 2
>> Start process 0 of 2 on snowflake in universe of 2
>>
>> % mpiexec -n 2 -hosts localhost,127.0.1.1 ./Spawn ./SpawnChild
>> Start process 1 of 2 on snowflake in universe of 2
>> Start process 0 of 2 on snowflake in universe of 2
>>
>> What am I missing?
>>
>>     -- Pavan
>>
>> On 02/04/2011 03:46 PM, Yauheni Zelenko wrote:
>>> Hi!
>>>
>>> I'm trying to use MPI_Comm_spawn to run child process and then use MPI_Intercomm_merge. This steps works when spawned children have different executable name then parent process but failed on MPI_Intercomm_merge step if executable names are same.
>>>
>>> Attached files could demonstrate a problem. Code is based on spawn_merge example.
>>>
>>> If difference in executable names is requirement, will be good idea to include in into  MPI_Comm_spawn documentation. Otherwise it's bug.
>>>
>>> Eugene.
>>>
>>>
>>>
>>> _______________________________________________
>>> mpich-discuss mailing list
>>> mpich-discuss at mcs.anl.gov
>>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>>
>> --
>> Pavan Balaji
>> http://www.mcs.anl.gov/~balaji
>> _______________________________________________
>> mpich-discuss mailing list
>> mpich-discuss at mcs.anl.gov
>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>
> --
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji
> _______________________________________________
> mpich-discuss mailing list
> mpich-discuss at mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji