The Application of Cloud Computing to the Creation of Image Mosaics and Management of Their Provenance

We have used the Montage image mosaic engine to investigate the cost and perfonnance of processing images on the Amazon EC2 cloud, and to infonn the requirements that higher-level products impose on provenance management technologies. We will present a detailed comparison of the perfonnance of Montage on the cloud and on the Abe high perfomlance cluster at the ational Center for Supercomputing Applications ( CSA). Because Montage generates many intennediate products, we have used it to understand the science requirements that higher-level products impose on provenance management technologies. We describe experiments with provenance management technologies such as the "Provenance Aware Service Oriented Architecture" (PASOA).