Apple Qmaster 2 and Compressor 2 (Distributed Processing Setup) - Manual (Page 46)

46 Chapter 4 Creating and Administering Clusters
4 In the Share column, select the checkbox.
5 Click Start Sharing.
The cluster is enabled, making this computer a cluster controller.
To turn off cluster controller services:
1 Open the Apple Qmaster pane in System Preferences.
2 Click Stop Sharing.
3 In the dialog that appears, enter the number of minutes you want controller services to
continue before shutting down, then click OK.
The default is 10 minutes, but you can turn off the service immediately by entering 0 in
the field. If you enter any number greater than 0, a countdown appears next to the
Cancel button. The shutdown delay is provided because some computers may be in
the middle of processing batches, and these could be damaged by a premature
shutdown. No new cluster connections are allowed to occur as the cluster controller is
shutting down.
Making the Most of Multi-processor Computers
If any of the service nodes you are administering have multiple processors, you
may want to adjust the number of instances of processing services. By default, the
Apple Qmaster system will create one instance for each processor. For process-intensive
work, having many instances may increase speed and efficiency, depending on the
processing application. (Consult the documentation that came with the application
to see if using each processor individually is ideal.)
Note: This feature is available only for Shake (with Apple Qmaster), Alias Maya, and
other UNIX command-line programs. It is not available for Compressor processing.
UP01082.Book Page 46 Wednesday, March 16, 2005 5:12 PM