Visualization of Human-Scale Blood Flow Simulation Using Intel® OSPRay Studio on SuperMUC-NG

Authors: Elisabeth Mayer (Leibniz Supercomputing Centre), Jon McCullough (University College London (UCL)), Johannes Günther (Intel Corporation), Salvatore Cielo (Leibniz Supercomputing Centre), and Peter Coveney (University College London (UCL))

Abstract: Efforts from CompBioMed are directed towards creating a virtual human – a personalized digital representation of a human’s biophysical processes. Part of this is HemeLB, a highly scalable, 3D fluid dynamics code that is developing high-resolution simulations of blood flow throughout human-scale vasculature.

Visualizing the results is a significant challenge, particularly due to the complexity and volume of the data. We use Intel OSPRay Studio for visualizing the resulting data directly on the production machine – LRZ’s supercomputer SuperMUC-NG - and producing outputs from 2D to Virtual Reality. We have created a custom plugin to map the data to the highly memory-efficient VDB volumes of Intel Open VKL for delivering visualization at native resolution and interactive frame rates, eliminating data pre-processing. In our exploratory video, we outline our approach that allows the full domain simulated by HemeLB to be visualized at a glance, a challenging task with existing techniques.

Video Summary: pdf
Video: mp4
Video Link: video


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