Cactus RDF Producer

Cactus comes with a thorn AEIThorns/Formaline (originally written by Erik Schnetter) which can announce application-specific metadata about running Cactus simulations to various external information services, including our RDF-based Information Service. Dylan Stark, Robert Engel, and Thomas Radke have been working on an RDF vocabulary to describe Cactus metadata. An RDF/XML definition document ( cctk-schema, version 1.0) for such a vocabulary is now (August 2006) available and being used by Formaline.

Cactus Metadata Management

Below are given some Cactus-specific example queries illustrating various metadata that a Cactus user can search for:

list all simulations by their parameter filenames, job owner, run host/date and, optionally, with their title
list all Wavetoy simulations
list all parameters (by name and value) of thorn "IOUtil"
list all simulations with their update information sent periodically and before termination

For feedback and questions please email Thomas Radke, or (better) our workgroup mailing list gac-wg2@aip.de.