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SCHEDULE: NOV 12-18, 2011

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Petaflop Biofluidics Simulations On A Two Million-Core System

SESSION: ACM Gordon Bell Award Finalists 2

EVENT TYPE: ACM Gordon Bell Finalist

TIME: 1:30PM - 2:15PM

SESSION CHAIR: Thom H. Dunning, Jr.

AUTHOR(S):Massimo Bernaschi, Mauro Bisson, Toshio Endo, Massimiliano Fatica, Satoshi Matsuoka, Simone Melchionna, Sauro Succi

ROOM:TCC LL4/LL5

ABSTRACT:
We present a computational framework for multi-scale simulations of real-life biofluidic problems. The framework allows to simulate suspensions composed by hundreds of millions of bodies interacting with each other and with a surrounding fluid in complex geometries. We apply the methodology to the simulation of blood flow through the human coronary arteries with a spatial resolution comparable with the size of red blood cells, and physiological levels of hematocrit (the red blood cell volume fraction). The simulation exhibits excellent scalability on a cluster of 4000 M2050 Nvidia GPUs and achieves close to 1 Petaflop aggregate performance, which demonstrates the capability to predicting the evolution of biofluidic phenomena of clinical significance. The combination of novel mathematical models, computational algorithms, hardware technology, code tuning and optimization required to achieve these results are presented.

Chair/Author Details:

Thom H. Dunning, Jr. (Chair) - National Center for Supercomputing Applications

Massimo Bernaschi - Consiglio Nazionale delle Ricerche

Mauro Bisson - Harvard University

Toshio Endo - Tokyo Institute of Technology

Massimiliano Fatica - NVIDIA

Satoshi Matsuoka - Tokyo Institute of Technology

Simone Melchionna - Consiglio Nazionale delle Ricerche

Sauro Succi - Consiglio Nazionale delle Ricerche

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The full paper can be found in the ACM Digital Library

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