The Underworld of the ARCS Grid


Poster by: Wendy G. Mason and Louis Moresi, School of Geosciences and School of Mathematical Sciences, Monash University, Clayton, VIC, Australia; Markus Binsteiner, Australian Research Collaboration Service, Carlton South, VIC, Australia; Steve Quenette, Victorian Partnership for Advanced Computing, Carlton South, VIC, Australia.

Underworld* is being developed as part of the AuScope nation-wide Geosciences infrastructure program, and is installed on a range of clusters as modules which in turn can be accessed across the ARCS Grid.

To complement the Underworld workflow, a proof of concept job submission template and post-processing panel have been developed for the Grid submission client Grisu. These features take advantage of the growing suite of generic tools already available in Grisu. For a selected cluster, Underworld job submission defaults to the latest module installed on the cluster, and multiple files as well as whole subdirectories can be staged in, from local or remote accounts. The Underworld post-processing panel provides a progress bar, as well as a preview and graph of key output parameter values. The workflow for running Underworld compute jobs across the Grid continues to be developed and refined, to meet the requirements of the growing Underworld user community.

Modifications to the Underworld code are underway to convert XML input parameters from Document Type Definition (DTD) into XML Stylesheet Definition (XSD), to facilitate the development of an automated web-based form with stylesheet translators (XSLT). It is intended that this form will handle selection of input parameters, and interface with Grid submission clients such as Grisu.

* UnderWorld utilises a Lagrangian particle-in-cell finite element scheme based on StGermain.