102 citations · 207 across the 12 of their papers we have counts for
12 papers
Lattice Boltzmann Benchmark Kernels as a Testbed for Performance Analysis
Markus Wittmann, Viktor Haag, Thomas Zeiser +2
Lattice Boltzmann methods (LBM) are an important part of current computational fluid dynamics (CFD). They allow easy implementations and boundary handling. However, competitive tim…
CRAFT: A library for easier application-level Checkpoint/Restart and Automatic Fault Tolerance
Faisal Shahzad, Jonas Thies, Moritz Kreutzer +3
In order to efficiently use the future generations of supercomputers, fault tolerance and power consumption are two of the prime challenges anticipated by the High Performance Comp…
Extreme Scale-out SuperMUC Phase 2 - lessons learned
Nicolay Hammer, Ferdinand Jamitzky, Helmut Satzger +36
In spring 2015, the Leibniz Supercomputing Centre (Leibniz-Rechenzentrum, LRZ), installed their new Peta-Scale System SuperMUC Phase2. Selected users were invited for a 28 day extr…
Short Note on Costs of Floating Point Operations on current x86-64 Architectures: Denormals, Overflow, Underflow, and Division by Zero
Markus Wittmann, Thomas Zeiser, Georg Hager +1
Simple floating point operations like addition or multiplication on normalized floating point values can be computed by current AMD and Intel processors in three to five cycles. Th…
Building a fault tolerant application using the GASPI communication layer
Faisal Shahzad, Moritz Kreutzer, Thomas Zeiser +4
It is commonly agreed that highly parallel software on Exascale computers will suffer from many more runtime failures due to the decreasing trend in the mean time to failures (MTTF…
Modeling and analyzing performance for highly optimized propagation steps of the lattice Boltzmann method on sparse lattices
M. Wittmann, T. Zeiser, G. Hager +1
Computational fluid dynamics (CFD) requires a vast amount of compute cycles on contemporary large-scale parallel computers. Hence, performance optimization is a pivotal activity in…