An automatic design optimization tool and its application to computational fluid dynamics
Proceedings of the 2001 ACM/IEEE conference on Supercomputing
Nimrod: a tool for performing parametrised simulations using distributed workstations
HPDC '95 Proceedings of the 4th IEEE International Symposium on High Performance Distributed Computing
High Performance Parametric Modeling with Nimrod/G: Killer Application for the Global Grid?
IPDPS '00 Proceedings of the 14th International Symposium on Parallel and Distributed Processing
The Grid 2: Blueprint for a New Computing Infrastructure
The Grid 2: Blueprint for a New Computing Infrastructure
Application Deployment over Heterogeneous Grids using Distributed Ant
E-SCIENCE '05 Proceedings of the First International Conference on e-Science and Grid Computing
Executing Large Parameter Sweep Applications on a Multi-VO Testbed
CCGRID '07 Proceedings of the Seventh IEEE International Symposium on Cluster Computing and the Grid
Parameter Space Exploration Using Scientific Workflows
ICCS '09 Proceedings of the 9th International Conference on Computational Science: Part I
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Understanding physiological mechanisms underlying the activity of the heart is of great medical importance. Mathematical modeling and numerical simulation have become a widely accepted method of unraveling the underlying mechanism of the heart. Calcium (Ca2 +) dynamics regulate the excitation-contraction coupling in heart muscle cells and hence are among the key players in maintaining normal activity of the heart. Many existing ventricular single cell models lack the biophysically detailed description of the Ca2 +dynamics. In this paper we examine how we can improve existing ventricular cell models by replacing their description of Ca2 +dynamics with the local Ca2 +control models. When replacing the existing Ca2 +dynamics in a given cell model with a different Ca2 +description, the parameters of the Ca2 +subsystem need to be re-fitted. Moreover, the search through the plausible parameter space is computationally very intensive. Thus, the Grid enabled Nimrod/O software tools are used for optimizing the cell parameters. Nimrod/O provides a convenient, user-friendly framework for this as exemplified by the incorporation of local Ca2 +dynamics into the ventricular single cell Noble 1998 model.