
61Using a Cloud Computing Environment to Process Large 3D Spatial Datasets
The processing interface also allows the user to either choose a predened computer
infrastructure for the project such as an EC2 instance type (large, Xlarge, and double
Xlarge) or specify a conguration of processors specic to their particular problem.
Table 3.1 provides high-level specications for these three instance types. The detailed
specications for each instance such as processor, memory, and storage capacity are
given at http://aws.amazon.com/ec2/instance-types/. In order to demonstrate processing
ows, an application example is provided in the next section. ...