Apple qmaster 3 매뉴얼

 Preparing a Network for Distributed Processing

 

Other Possible Components of a Distributed Processing Network

There are many ways to expand the capacity of a distributed processing network. You 
could include any of the following:

 High-speed switch and cables:  A 100BaseT or Gigabit Ethernet switch and compatible 

cables to allow your data to move over the LAN at maximum speed. 

 Multiple clients:  Multiple client computers can use the services of the same cluster. 

And, you can have multiple client applications on the same client computer, using 
the same cluster.

 Multiple clusters:  Depending on how extensive your network is and how many clients 

it needs to serve, you may want to divide up available computers and create more 
than one cluster to serve various clients. (Users select the cluster they want to send a 
batch to when they submit the batch.)

 Multiple service nodes:  In general, more service nodes means more processing power. 

In deciding how many service nodes to have in a cluster, consider the ratio of data 
movement time to computing time. If the processing demand is greater than the 
network demand required to move job segments throughout the cluster, as is the 
case with rendering, more service nodes are a good idea. If the computing load, per 
job, is closer to the network load, having a smaller number of service nodes per 
cluster may be more efficient. If you are using the Apple Qmaster distributed 
processing system with applications other than Shake or Compressor, consult the 
application’s user manual on how to optimize the number of service nodes.

 Storage device:  A storage device, such as a remote disk or group of disk arrays, can be 

used as cluster scratch storage, which is a place for short-term storage of temporary 
data generated by the cluster controller, clients, and service nodes. (You set the 
scratch storage location in the Apple Qmaster pane in System Preferences. See 
“

” on page 62.) Alternatively, a 

storage device can be used as a final destination for the files after they are processed.

Many of these items are incorporated in the example that follows.