Proceedings of The XXV International Symposium on Lattice Field Theory — PoS(LATTICE 2007) · 2008 · 15 citations · 0 references
ComputingComputer ScienceHigh-performance ComputingComputer ArchitectureParallel ComputingScientific ComputingData ParallelismParallel ArchitecturesParallel Computing SystemsParallel Performance AnalysisFloating-point ArithmeticHigh-performance Computing OptimizationHigh-performance Computing PerformanceHigh-performance Computing SystemsModel Performance EvaluationRounding Processes
We evaluate IBM's Enhanced Cell Broadband Engine (BE) as a possible building block of a new generation of lattice QCD machines. The Enhanced Cell BE will provide full support of doubleprecision floating-point arithmetics, including IEEE-compliant rounding. We have developed a performance model and applied it to relevant lattice QCD kernels. The performance estimates are supported by micro-and application-benchmarks that have been obtained on currently available Cell BE-based computers, such as IBM QS20 blades and PlayStation 3. The results are encouraging and show that this processor is an interesting option for lattice QCD applications. For a massively parallel machine on the basis of the Cell BE, an application-optimized network needs to be developed.