The International Conference for High Performance Computing, Networking, Storage, and Analysis
The International Conference for High Performance Computing, Networking, Storage, and Analysis
Student: Changnian Han (Stony Brook University), Peng Zhang (Stony Brook University), Yuefan Deng (Stony Brook University)
Supervisor: Yuefan Deng (Stony Brook University)
Abstract: We developed an AI-guided adaptive multiple time stepping algorithm to model platelet activation, adhesion and aggregation, complex dynamical processes that cause physiological reactions including cardiovascular diseases and stroke. The dynamics spans 6 spatial and 9 temporal scales. Our algorithm can intelligently adapt integration time step sizes to the underlying dynamics. We access the accuracy and speed of our algorithm on a heterogeneous supercomputer with the IBM POWER9 CPUs and Nvidia V100 GPUs. The algorithm speed increases by 4000x with CPUs and an extra 5-10x with GPUs while preserving the solution accuracy within 97%, compared with the conventional algorithm. The poster presents the details of the AI-guided multiple time stepping algorithm and its performance for speeding up modeling of this challenging multiscale biomedical problem.
ACM-SRC Semi-Finalist: no
Poster: PDF
Poster Summary: PDF
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