Parallelization of Hydrologic Simulations for Improved Computational Efficiency

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Aquanty Inc.

Ontario, Canada

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Fully-integrated hydrologic simulations, such as those performed with HydroGeoSphere, involve highly nonlinear processes, and thus the computational efficiency of the model becomes a critical issue for those performing hydrologic simulations. As such, our researchers are constantly looking for ways to increase the computational efficiency of HydroGeoSphere. Taking advantage of multicore processors, HydroGeoSphere was parallelized using the OpenMP framework.

The highlights of this research are:

Parallelization of a physically-based hydrologic simulator (HydroGeoSphere) in a manner that allows the same code to be executed on various shared memory platforms with minimal maintenance
The development of a general, flexible and robust parallel iterative sparse-matrix solver that can be implemented in a wide range of numerical models employing either structured or unstructured meshes
The design of a flexible methodology for the efficient construction of the coefficient and Jacobian matrices.