VBM Remote Computations

In this demonstration we start from a pre-computed loop of solutions as the angle alpha is varied. At fixed alpha, we then compute solutions for slightly increased and decreased values of another parameter in the problem (a bending stiffness). We then revert to the alpha-continuation computation to see how the loop of solutions has been perturbed.

The white and red balls illustrate independent computations providing data to the same bifurcation diagram. Each computation is being performed `live', each on an independent four-processor SUN server located at EPF Lausanne. Each computation is itself parallelized using a threads-based SUN HPC compilation of the AUTO code (by Doedel et al).

The data reduction strategy described earlier means that the remote computations need only report back the appropriate initial value problem information, so the network communication demands between Berlin and Lausanne are very small.

http://lcvmwww.epfl.ch