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PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:1.0
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DTSTART:20101116T200000Z
DTEND:20101116T203000Z
LOCATION:394
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: We present a high fidelity numerical simulation of blood flow by=0Adirectly resolving the interactions of 200 million deformable red=0Ablood cells flowing in plasma. This simulation amounts to 90 billion=0Aunknowns in space, with numerical experiments typically requiring=0AO(1000) time steps. In terms of the number of cells, we improve the=0Astate-of-the art by several orders of magnitude: the previous largest=0Asimulation, at the same physical fidelity as ours, resolved the flow=0Aof 14 thousand cells.=0A=0AThis breakthrough is based on novel algorithms that we designed to=0Aenable distributed memory, shared memory, and vectorized/streaming=0Aparallelism. We present results on CPU and hybrid CPU-GPU platforms,=0Aincluding the new NVIDIA Fermi architecture and 200,000 cores of=0AORNL's Jaguar system. For the latter, we achieve over 0.7 Petaflop/s=0Asustained performance.=0A=0AOur work demonstrates the successful simulation of complex phenomena=0Ausing heterogeneous architectures and programming models at the=0Apetascale.
SUMMARY:Petascale Direct Numerical Simulation of Blood Flow on 200K Cores and Heterogeneous Architectures
PRIORITY:3
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