Hello,

I have two linux machines, each running Open MPI 1.6.5. I want to use the 
preload binary command in an appfile to execute a binary from the host on both 
the node and the host during mpirun. Right now I am using an appfile with the 
contents:
#appfile.test

-host user@remotehost --preload-binary -np 1 run_date
-host localhost -np 1 run_date
where 'run_date' is an executable that creates a text file with the current 
date. I run the appfile using the command:
mpirun -app appfile.test
I enter user@remotehost's password when prompted and then immediately receive 
an error:
--------------------------------------------------------------------------
WARNING: Remote peer ([[53924,0],1]) failed to preload a file.

Exit Status: 256
Local  File: /tmp/openmpi-sessions-user@remotehost_0/53924/0/run_date
Remote File: run_date
Command:
  scp  localhost:/home/user/appfileTest/run_date 
/tmp/openmpi-sessions-user@remotehost_0/53924/0/run_date

Will continue attempting to launch the process(es).
--------------------------------------------------------------------------
--------------------------------------------------------------------------
mpirun was unable to launch the specified application as it could not access
or execute an executable:

Executable: run_date
Node: user@remotehost

while attempting to start process rank 0.
--------------------------------------------------------------------------
After this error, I get returned to the command line to see that the 'run_date' 
binary has been executed on the localhost but not the remotehost.
I have been able to run on both machines by manually placing the binary on the 
remotehost and removing the '-preload-binary' command from the appfile, however 
I need the appfile to place the binary for me. I have also tried setting the 
remote machines directory using '-wdir' but receive the same error.
Do you guys know what the issue is?


Guthrie Cordone
Systems Engineering Intern
Phone: 315-883-4484
gcord...@srcinc.com

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