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Full Discussion: Run rest of script after parallel steps have completed
Top Forums Shell Programming and Scripting Run rest of script after parallel steps have completed Post 303004677 by rbatte1 on Friday 6th of October 2017 06:43:42 AM
Old 10-06-2017
Beware that if you have many files that you might hit processing limits (such as number of process per user, total process on the system etc.) so might need to break down your list into smaller chunks.

Is this likely to be the case are we looking at 100 or less files?



Robin
 

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LEARN ABOUT MOJAVE

startpar

STARTPAR(8)                                                   System Manager's Manual                                                  STARTPAR(8)

NAME

       startpar - start runlevel scripts in parallel

SYNOPSIS

       startpar [-p par] [-i iorate] [-t timeout] [-T global_timeout] [-a arg] prg1 prg2 ...
       startpar [-p par] [-i iorate] [-t timeout] [-T global_timeout] -M [ boot|start|stop]

DESCRIPTION

       startpar  is  used  to run multiple run-level scripts in parallel.  The degree of parallelism on one CPU can be set with the -p option, the
       default is full parallelism. An argument to all of the scripts can be provided with the -a option.  Processes blocked by pending  I/O  will
       cause  new  process  creation  to be weighted by the iorate factor 800.  To change this factor the option -i can be used to specify another
       value.  The amount weight=(nblockedxiorate)/1000 will be subtracted from the total number  of  processes  which  could  be  started,  where
       nblocked is the number of processes currently blocked by pending I/O.

       The  output  of  each  script is buffered and written when the script exits, so output lines of different scripts won't mix. You can modify
       this behaviour by setting a timeout.

       The timeout set with the -t option is used as buffer timeout. If the output buffer of a script is not empty and the last output was timeout
       seconds ago, startpar will flush the buffer.

       The  -T option timeout works more globally. If no output is printed for more than global_timeout seconds, startpar will flush the buffer of
       the script with the oldest output. Afterwards it will only print output of this script until it is finished.

       The -M option switches startpar into a make(1) like behaviour.  This option takes three different arguments:  boot,  start,  and  stop  for
       reading .depend.boot or .depend.start or .depend.stop respectively in the directory /etc/init.d/.  By scanning the boot and runlevel direc-
       tories in /etc/init.d/ it then executes the appropriate scripts in parallel.

FILES

       /etc/init.d/.depend.boot
       /etc/init.d/.depend.start
       /etc/init.d/.depend.stop

SEE ALSO

       init(8) insserv(8).

COPYRIGHT

       2003,2004 SuSE Linux AG, Nuernberg, Germany.
       2007 SuSE LINUX Products GmbH, Nuernberg, Germany.

AUTHOR

       Michael Schroeder <mls@suse.de>
       Takashi Iwai <tiwai@suse.de>
       Werner Fink <werner@suse.de>

                                                                     Jun 2003                                                          STARTPAR(8)
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