ACM Transactions on Mathematical Software (TOMS): Volume 42 Issue 4, July 2016
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A simple and efficient algorithm to numerically compute the genus of surfaces of three-dimensional objects using the Euler characteristic formula is presented. The algorithm applies to objects obtained by thresholding a scalar field in a structured-collocated grid and does not require any triangulation of the data. This makes the algorithm ...
Euler characteristic, Genus, coherent structures, turbulence, turbulent/nonturbulent interface, voxels
EuroMPI'11: Proceedings of the 18th European MPI Users' Group conference on Recent advances in the message passing interface
A hybrid OpenMP-MPI code has been developed and optimized for Blue Gene/P in order to perform a direct numerical simulation of a zero-pressure-gradient turbulent boundary layer at high Reynolds numbers. OpenMP is becoming the standard application programming interface for shared memory platforms, offering simplicity and portability. For architectures with limiting ...
MPI, openMP, data locality, blocking, node topology