[mpich2-dev] Changes in host list handling

[Justin M Wozniak]

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