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Summary: Communication over a Secured Heterogeneous Grid
with the GriddLeS runtime environment
Jagan Kommineni, David Abramson and Jefferson Tan
Monash e-Science and Grid Engineering Lab
Faculty of Information Technology
Monash University, Caulfield 3145 Victoria, Australia
{jagan,davida, jtan}@csse.monash.edu.au
Abstract
Scientific workflows are a powerful programming
technique for specifying complex computations using a
number of otherwise independent components. When
used in a Grid environment, it is possible to build
powerful "virtual applications" across multiple
distributed and heterogeneous resources. Whilst
toolkits such as Globus virtualize many system
attributes, and thus make it easier to span different
organizations, inconsistent security policies and
resource heterogeneity can limit the applicability of
workflow techniques.
In earlier work, we have described a novel run time
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