SCHEDULE: NOV 10-16, 2012
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High Quality Real-Time Image-to-Mesh Conversion for Finite Element Simulations
SESSION: ACM Student Research Competition Poster Session
EVENT TYPE: ACM Student Research Competition
TIME: 5:15PM - 7:00PM
SESSION CHAIR: Torsten Hoefler
AUTHOR(S):Panagiotis Foteinos
ROOM:East Entrance
ABSTRACT:
In this poster, we present a parallel Image-to-Mesh Conversion (I2M) algorithm with quality and fidelity guarantees achieved by dynamic point insertions and removals. Starting directly from an image, it is able to recover the surface and mesh the volume with tetrahedra of good shape. Our tightly-coupled shared-memory parallel speculative execution paradigm employs carefully designed memory and contention managers, load balancing, synchronization and optimizations schemes, while it maintains high single-threaded performance as compared to CGAL, the state of the art sequential I2M software we are aware of. Our meshes come also with theoretical guarantees: the radius-edge is less than 2 and the angles of the boundary triangles are more than 30 degrees.
The effectiveness of our method is shown on Blacklight, the NUMA machine of Pittsburgh-Supercomputing-Center. We observe a more than 74% strong scaling efficiency for up to 128 cores and a super-linear weak scaling efficiency for up to 128 cores.
Chair/Author Details:
Torsten Hoefler (Chair) - ETH Zurich
Panagiotis Foteinos - College of William and Mary
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