Apple Qmaster 3 - Manual (Page 54)

3 In the “Share this computer as” section, select one of the following buttons:
• QuickCluster with services: Select this option to create an “instant” cluster with
unmanaged services.
• Services and cluster controller: Select this option to build a cluster in
Apple Qadministrator. (See Creating Clusters with Apple Qadministrator for more
information.)
Also see Managed vs. Unmanaged Services for more information.
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 of 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 0 minutes, but you can enter a different number in the field. If you enter
any number greater than 0, a countdown appears next to the Cancel button. The shutdown
delay is provided as a way to allow computers to complete the processing of active
batches without interruption. No new cluster connections are allowed to occur as the
cluster controller is shutting down.
Note: Optionally, you can turn off the controller and just make the node a service node.
To do this, select “Services only” in the “Share this computer as” section.
Using Virtual Clusters to Make the Most of Multiprocessor Computers
If any of the service node computers in your network have multiple processors, you can
adjust the number of instances of a processing service, essentially creating virtual clusters
on individual computers. For processor-intensive work, having many instances may
increase speed and efficiency, depending on the processing application.
Note: By default, the Apple Qmaster system creates one Rendering service instance for
each processor. Rendering services are for Shake (with Apple Qmaster), Autodesk Maya,
and other UNIX command-line programs, as opposed to Compressor services, which are
solely for Compressor distributed processing. Consult the documentation that came with
the application to see if using each processor individually is ideal.
To change the number of instances of processing services on a computer
1 Open the Apple Qmaster pane of System Preferences.
2 Select the Compressor or Rendering service in the Services section.
3 Select “Options for selected service.”
54 Chapter 5 Creating Clusters