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Subject: [OMPI users] Error from mpirun command
From: Tena Sakai (tsakai_at_[hidden])
Date: 2011-01-12 17:57:38


Hi,

I am trying to run simple mpirun commands (pretty much straight out of
mpirun man page) and getting a bit of error message. Here’s what I mean:

   [tsakai_at_vixen Rmpi]$
   [tsakai_at_vixen Rmpi]$ hostname
   vixen.egcrc.org
   [tsakai_at_vixen Rmpi]$
   [tsakai_at_vixen Rmpi]$ mpirun -H vixen -np 1 hostname
   vixen.egcrc.org
   [tsakai_at_vixen Rmpi]$ mpirun -H blitzen -np 1 hostname
   stty: standard input: Invalid argument
   blitzen.egcrc.org
   [tsakai_at_vixen Rmpi]$ mpirun -H vixen -np 1 hostname : -H blitzen -np 1 hostname
   stty: standard inputvixen.egcrc.org
   blitzen.egcrc.org
   [tsakai_at_vixen Rmpi]$ : Invalid argument

   [tsakai_at_vixen Rmpi]$
   [tsakai_at_vixen Rmpi]$ mpirun -H vixen -np 1 hostname : -H blitzen -np 1 hostname 2> stdErr
   vixen.egcrc.org
   blitzen.egcrc.org
   [tsakai_at_vixen Rmpi]$
   [tsakai_at_vixen Rmpi]$ cat stdErr
   stty: standard input: Invalid argument
   [tsakai_at_vixen Rmpi]$
   [tsakai_at_vixen Rmpi]$ ssh -l tsakai blitzen
   Last login: Wed Jan 12 15:41:59 2011 from vixen.egcrc.org
   Platform OCS Frontend Node - Blitzen Cluster
   Platform OCS 4.5.1 (Flintstone)
   Profile built 11:01 10-Jul-2008

   Kickstarted 11:02 10-Jul-2008
   [tsakai_at_blitzen ~]$
   [tsakai_at_blitzen ~]$ hostname
   blitzen.egcrc.org
   [tsakai_at_blitzen ~]$
   [tsakai_at_blitzen ~]$ mpirun -H blitzen -np 1 hostname
   blitzen.egcrc.org
   [tsakai_at_blitzen ~]$ mpirun -H vixen -np 1 hostname
   stty: standard inputvixen.egcrc.org
   [tsakai_at_blitzen ~]$ : Invalid argument

   [tsakai_at_blitzen ~]$ mpirun -H vixen -np 1 hostname : -H blitzen -np 1 hostname
   stty: standard inputblitzen.egcrc.org
   vixen.egcrc.org
   [tsakai_at_blitzen ~]$ : Invalid argument

   [tsakai_at_blitzen ~]$
   [tsakai_at_blitzen ~]$ mpirun -H vixen -np 1 hostname : -H blitzen -np 1 hostname 2> stdErr
   blitzen.egcrc.org
   vixen.egcrc.org
   [tsakai_at_blitzen ~]$
   [tsakai_at_blitzen ~]$ cat stdErr
   stty: standard input: Invalid argument
   [tsakai_at_blitzen ~]$
   [tsakai_at_blitzen ~]$ exit
   logout
   [tsakai_at_vixen Rmpi]$

I am using two hosts: vixen and blitzen. It appears that when a machine other than
the one I am on it is specified via –H flag, I get “stty: standard input: Invalid argument”
message to stderr. It doesn’t seem to impeed the execution of the command (in
my example, hostname), though.

Can somebody please tell me what this means and what it takes to cure the problem?

Thank you.

Tena Sakai
tsakai_at_[hidden]