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Top Forums Shell Programming and Scripting tar "--totals" writes to stderr not stdout? Post 302452948 by Corona688 on Monday 13th of September 2010 01:28:32 PM
Old 09-13-2010
Traditionally, stdout is used for data while stderr is used for readable messages, including errors and debugging info and statistics.
 

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OMPI-IOF(1)							     Open MPI							       OMPI-IOF(1)

NAME
ompi-iof, orte-iof - Displays a copy of the output streams from a process. NOTE: ompi-iof, and orte-iof are exact synonyms for each other. Using any of the names will result in exactly identical behavior. SYNOPSIS
ompi-iof [ options ] Options ompi-iof will display a copy of the indicated stdout, stderr, and/or stddiag streams from the designated process. -pid | --pid The pid of the mpirun executing the process whose streams are to be copied -stdout | --stdout Display a copy of the specified process' stdout. If no options are specified, this will act as the default -stderr | --stderr Display a copy of the specified process' stderr. -stddiag | --stddiag Display a copy of the specified process' stddiag. -rank | --rank The rank of the process whose output is to be copied. DESCRIPTION
ompi-iof displays a copy of the indicated stdout, stderr, and/or stddiag streams from the designated process. At this time, a ctrl-C must be used to terminate the program. The program will terminate cleanly, telling the associated mpirun to close the requested streams before exiting. SEE ALSO
orterun(1) 1.4.5 Feb 10, 2012 OMPI-IOF(1)
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