Product Line Demos

Parallel Toolbox I

Contents

• Electrical Activity in Heart
• Incompressible Fluid Flow
• Ultrasound in Nonlinear Medium
• In-Depth Material on These Examples

 

Electrical Activity in Heart

The images below illustrate use of the Parallel Toolbox for simulating the electrical activity in the human heart and torso.

Click for a Movie showing the electrical potential.	There are two coupled PDEs discretized on two coupled meshes. This is the mesh for the heart.
Each mesh are partitoned to define local contributions to the global linear systems. The local contributions are computed in parallel.

 

Incompressible Fluid Flow

These images illustrates use of the Parallel Toolbox for simulating an incompressible fluid meeting and obstacle in a pipe.

Click for Movie showing the turbulent fluid.

The mesh is partitoned to define local contributions for parallel solution of the linear systems as shown above.

 

Ultrasound in Nonlinear Medium

Parallel simulation of ultrasound on 8 sub-partitions of the mesh.

 

In-Depth Material on These Examples

The above examples are covered in detail in the following two articles:

• A parallel solution of the bidomain equations modeling the electrical activity of the heart,
  by Lines, Cai and Tveito.
• On the Performance of PC Clusters in Solving Partial Differential Equations,
  by Cai and Ødegård.