On the Difficulties of Using Workflow Tools to Express Parallelism and Distribution– An Application Case Study in Geological Sciences

We discuss the parallelization and distribution of a workflow based application. We present experimental results and discuss lessons learned. The experimentation is based on a scientific application case study – Sequential Simulation applied to Geostatistics.  As a result we identify a list of issues not well supported in the most referenced scientific workflows tools and environments namely Kepler, and outline relevant research directions.