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Universität Augsburg
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Universität Augsburg
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Herr Johannes Gebert
High-Performance Computing Center Stuttgart
spricht am
Dienstag, 6. Mai 2025
um
14:00 Uhr
im
Raum 1309 (I2)
über das Thema:
| Abstract: |
| Quantifying the patient-specific elastic behavior of human bone can improve the design of implants, for example in total hip- or knee replacements. We calculate the mechanical stiffness tensor of human bone by direct discretization of computed tomography (CT) scans with more than 18 billion voxels. The software started as a serial implementation but now requires different massively parallel parameterizations, which poses significant challenges. Many computations may run ideally parallel; one computation may be a single large-scale job or any other variant. We solved the challenge with MPI and PETSc to distribute the linear algebraic system, allowing for computing large volumes of interest (VoIs) in bone. At the same time, pre- and post-processing are still serially implemented. We will examine the challenges in the software's legacy components and its performance bottlenecks. Furthermore, we will show the perspective of the high-performance computing center in which the user deploys the simulation and measures to, e.g., optimize for short turnaround times. |
| Hierzu ergeht herzliche Einladung. |
| Prof. Dr. Michael Schlottke-Lakemper |