The GATO ideal MHD stability code is now available as a worldwide computational service on FusionGrid. This Grid computing deployment offers a very easy and convenient facility for running GATO in a secure environment. Presently, the service runs on a 2-CPU server. Data preparation and the invoking of a run are done through an IDL-based PreGATO utility. Both input and output data are written into MDSplus in a tree structure designed to be appropriate for any stability code. Future plans for the GATO service include adding a batch run feature, adding a run queue for efficient use of resources, expanding the server to include many more compute nodes, creating a non-commercial software based PreGATO, and building a set of general MDSplus tools to process and visualize the results. This service is expected to be a prototype for future stability codes.
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