Mike Nicolai

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The xns computational fluid dynamics code was successfully running on Blue Gene/L, however, its scalability was unsatisfactory until the first Jülich Blue Gene/L Scaling Workshop provided an opportunity for the application developers and performance analysts to start working together. Investigation of solver performance pinpointed a communication bottleneck(More)
A parallel solver for incompressible fluid flow simulation, used in biomedical device design among other applications, is discussed. The major compute-and communication-intensive portions of the code are described. Using unsteady flow in a complex implantable axial blood pump as a model problem, scalability characteristics of the solver are briefly(More)
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