518 citations · 1k across the 15 of their papers we have counts for
15 papers
Quantifying performance bottlenecks of stencil computations using the Execution-Cache-Memory model
Holger Stengel, Jan Treibig, Georg Hager +1
Stencil algorithms on regular lattices appear in many fields of computational science, and much effort has been put into optimized implementations. Such activities are usually not…
Comparing the Performance of Different x86 SIMD Instruction Sets for a Medical Imaging Application on Modern Multi- and Manycore Chips
Johannes Hofmann, Jan Treibig, Georg Hager +1
Single Instruction, Multiple Data (SIMD) vectorization is a major driver of performance in current architectures, and is mandatory for achieving good performance with codes that ar…
Performance Engineering for a Medical Imaging Application on the Intel Xeon Phi Accelerator
Johannes Hofmann, Jan Treibig, Georg Hager +1
We examine the Xeon Phi, which is based on Intel's Many Integrated Cores architecture, for its suitability to run the FDK algorithm--the most commonly used algorithm to perform the…
Chip-level and multi-node analysis of energy-optimized lattice-Boltzmann CFD simulations
Markus Wittmann, Georg Hager, Thomas Zeiser +2
Memory-bound algorithms show complex performance and energy consumption behavior on multicore processors. We choose the lattice-Boltzmann method (LBM) on an Intel Sandy Bridge clus…
Optimization of FASTEST-3D for Modern Multicore Systems
Christoph Scheit, Georg Hager, Jan Treibig +2
FASTEST-3D is an MPI-parallel finite-volume flow solver based on block-structured meshes that has been developed at the University of Erlangen-Nuremberg since the early 1990s. It c…
Exploring performance and power properties of modern multicore chips via simple machine models
Georg Hager, Jan Treibig, Johannes Habich +1
Modern multicore chips show complex behavior with respect to performance and power. Starting with the Intel Sandy Bridge processor, it has become possible to directly measure the p…