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Parallel Algorithms for High-Accuracy CNC Milling Simulation
SESSION: Research Poster Reception
EVENT TYPE: ACM Student Research Competition Poster, Poster, Electronic Poster
TIME: 5:15PM - 7:00PM
SESSION CHAIR: Bernd Mohr
AUTHOR(S):Tyler Garaas, Alan Sullivan
ROOM:WSCC North Galleria 2nd/3rd Floors
ABSTRACT: We demonstrate multithreaded algorithms for high-accuracy NC milling simulation. Our approach to simulation – Boolean difference between a set of analytic or procedural, signed, Euclidiean distance fields – is able to represent a milled workpiece, produced from hundreds-of-thousands of milling instructions, in under 50MB of space to an accuracy of <1μm; however, computationally intensive ray-casting limits rendering and editing performance (ie, interactivity). To increase interactivity, we developed a master-workers thread-manager that can be integrated into existing code-bases with minimal changes.
In our poster, we describe [in movies!] the details of our system, thread-manager, and approach to dividing the rendering/editing algorithms into units-of-work dispatched for execution by the thread-manager. The system is capable of scheduling work completely independently, or in blocks of sequential work including load balancing operations. Our experiments reveal performance gains near unity in the number of available cores: 77-97% and >98% per core when editing and rendering, respectively.
Bernd Mohr (Chair) - Juelich Supercomputing Centre
Tyler Garaas - Mitsubishi Electric Research Laboratories
Alan Sullivan - Mitsubishi Electric Research Laboratories