Kelly Davis MPI-AEI Why GAT? Kelly Davis MPI-AEI.

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Presentation transcript:

Kelly Davis MPI-AEI Why GAT? Kelly Davis MPI-AEI

Kelly Davis MPI AEI Why GAT?: Outline What is GAT? Why GAT? What can GAT do? File Management FileStream Management LogicalFile Management Advert Management Job Management Monitoring And more…

Kelly Davis MPI AEI What is GAT? …an API and Toolkit for developing and running portable grid apps independently of the underlying grid infrastructure and available services GAT is…?

Kelly Davis MPI AEI What is GAT? GAT is…?

Kelly Davis MPI AEI Why GAT? “It’s in there!” The Grid RFT OGSA globus unicore wsdl …and more

Kelly Davis MPI AEI Why GAT? …..simplicity

Kelly Davis MPI AEI What can GAT Do? File Management Move Files Copy Files Delete Files Examine File Properties …and more … all in a manner independent of the file's location or method of access!

Kelly Davis MPI AEI What can GAT Do? FileStream Management Read Bytes from a File Write Bytes to a File Seek on a File …and more …in such a ways as to lift the burden of protocols, security, and other details from the user's shoulders!

Kelly Davis MPI AEI What can GAT Do? LogicalFile Management Replicates files …and more …so as to maximize use of available network bandwidth and never have to worry about the details of security,protocols, Globus…

Kelly Davis MPI AEI What can GAT Do? Advert Management Persist objects Query for persisted objects Move objects across machine boundaries Move objects across language boundaries …and more …so as to never yoke the application programmer with the details. It just works!

Kelly Davis MPI AEI What can GAT Do? Job Management Schedule Jobs Un-Schedule Jobs Stop Jobs Checkpoint Jobs Migrate Jobs …and more …while not bothering the user with the details of traditional job management systems such as Condor, Globus, Unicore…

Kelly Davis MPI AEI What can GAT Do? Monitoring Monitor almost anything Monitor continuous events Monitor “event-like” events Allows GAT application to be monitored …and more …while the user never needs to know the details of Mercury, NWS or any other monitoring system.

Kelly Davis MPI AEI What can GAT Do? …and More Explore Resources on “The Grid” Obtain Resource Reservations Instrument GAT Applications for Checkpointing Communicate -- socket-like -- between processes ”Everything, including the Kitchen Sink”