1.1k citations · 4.5k across the 114 of their papers we have counts for
5 papers · 1 filter
Analytic Roofline Modeling and Energy Analysis of LULESH Proxy Application on Multi-Core Clusters
Ayesha Afzal, Georg Hager, Gerhard Wellein
We present a thorough performance and energy consumption analysis of the LULESH proxy application in its OpenMP and MPI variants on two different clusters based on Intel Ice Lake (…
Microarchitectural comparison and in-core modeling of state-of-the-art CPUs: Grace, Sapphire Rapids, and Genoa
Jan Laukemann, Georg Hager, Gerhard Wellein
With Nvidia's release of the Grace Superchip, all three big semiconductor companies in HPC (AMD, Intel, Nvidia) are currently competing in the race for the best CPU. In this work w…
Cache Blocking of Distributed-Memory Parallel Matrix Power Kernels
Dane C. Lacey, Christie L. Alappat, Florian Lange +3
Sparse matrix-vector products (SpMVs) are a bottleneck in many scientific codes. Due to the heavy strain on the main memory interface from loading the sparse matrix and the possibl…
Charge-order melting in the one-dimensional Edwards model
Florian Lange, Gerhard Wellein, Holger Fehske
We use infinite matrix-product-state techniques to study the time evolution of the charge-density-wave (CDW) order after a quench or a light pulse in a fundamental fermion-boson mo…
Alya towards Exascale: Optimal OpenACC Performance of the Navier-Stokes Finite Element Assembly on GPUs
Herbert Owen, Dominik Ernst, Thomas Gruber +4
This paper addresses the challenge of providing portable and highly efficient code structures for CPU and GPU architectures. We choose the assembly of the right-hand term in the in…