[mpich2-dev] Changes in host list handling

[Justin M Wozniak]

Just tried that but resulted in the same error.

Darius stopped by and suggested I look at what mpiexec puts in the 
environment of the processes.  I'm going to need to suppress any use of 
the symbol "A" by the communication functionality...

On Wed, 27 Oct 2010, Pavan Balaji wrote:

>
> It's hard to tell what the issue is, but most of the changes are in the 
> stdout/stderr forwarding part when "-l" is given. Did you try without that?
>
> -- Pavan
>
> On 10/27/2010 10:13 AM, Justin M Wozniak wrote:
>> Hello
>>   	I have a patch I'm using that makes some changes to Hydra
>> bootstrapping but I'm having trouble applying it successfully in the
>> current trunk.  My patch is based on r7255.  I'm trying to figure out what
>> changed.
>> 
>> Here's an example that doesn't rely on my patch to show different
>> behavior.  This test program simply copies an input file to an output
>> file:
>> 
>> In r7255:
>> 
>> mpiexec -l -n 2 -bootstrap fork -hosts A,B ./mpi-cp input.txt output.txt
>> [1] recving
>> [0] read: input.txt
>> [0] size: 6
>> [1] recvd
>> [1] size: 6
>> [1] write: output.txt
>> 
>> However, using trunk, I get:
>> 
>> mpiexec -l -n 2 -bootstrap fork -hosts A,B ./mpi-cp input.txt output.txt
>> [1] recving
>> [0] read: input.txt
>> [0] size: 6
>> [0] Fatal error in MPI_Send: Other MPI error, error stack:
>> [0] MPI_Send(173)..........................: MPI_Send(buf=0x7ffff85bb534,
>> count=1, MPI_INT, dest=1, tag=1, MPI_COMM_WORLD) failed
>> [0] MPIDI_EagerContigShortSend(262)........: failure occurred while
>> attempting to send an eager message
>> [0] MPID_nem_tcp_iStartContigMsg(304)......:
>> [0] MPID_nem_tcp_connect(864)..............:
>> [0] MPID_nem_tcp_get_addr_port_from_bc(484): Missing ifname or invalid
>> host/port description in business card
>> APPLICATION TERMINATED WITH THE EXIT STRING: Hangup (signal 1)
>> 
>> Does anyone have an idea on what the relevant change is?
>>
>>   	Thanks
>> 
>
>

-- 
Justin M Wozniak