Ensemble Broker Documentation

The EnsembleBroker is a metaworkflow service designed to manage thousands of user submitted "nodes".

View schematics images.

View example files.

The following are some thoughts concerning what will need to be done for the next version.

(1) Modify the structure of the descriptor.

This should involve the following:

Eliminate the top-level "ensemble", making the spawning of an ensemble a particular kind of workflow node
Add pre and post-conditions to each node. These could be file existence or property definition checks, and would be verified through the metadata system. Pre-condition property values can be retrieved and set on the node; post-condition property values and file locations would be registered with the metadata system.
The Node-to-node "dependency" (edge) would carry these as attributes.

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