Multiscale simulation of cardiovascular flows on the IBM Blue Gene/P

I will present a large-scale simulation of the entire heart-circulation
cardiovascular system, with a realistic description of the complex human arterial
geometry, from centimeters down to the spatial resolution of red-blood cells. This multiscale simulation involves one billion fluid nodes, embedded in a bounding space of one trillion, coupled with the concurrent motion of ten million red-blood cells, interacting with each other and with the surrounding fluid. The simulation achieves excellent scalability up to 294,912 Blue Gene/P computational cores.