102 citations · 132 across the 8 of their papers we have counts for
9 papers
Auto-Tuning for OpenMP Dynamic Scheduling applied to Full Waveform Inversion
Felipe H. S. da Silva, João B. Fernandes, Idalmis M. Sardina +3
Full Waveform Inversion (FWI) is a widely used method in seismic data processing, capable of estimating models that represent the characteristics of the geological layers of the su…
Adaptive Asynchronous Work-Stealing for distributed load-balancing in heterogeneous systems
João B. Fernandes, Ítalo A. S. de Assis, Idalmis M. S. Martins +2
Supercomputers have revolutionized how industries and scientific fields process large amounts of data. These machines group hundreds or thousands of computing nodes working togethe…
Evaluating the effects of reducing voltage margins for energy-efficient operation of MPSoCs
Diego V. Cirilo do Nascimento, Kyriakos Georgiou, Kerstin I. Eder +1
Voltage margins, or guardbands, are imposed on DVFS systems to account for process, voltage, and temperature variability effects. While necessary to assure correctness, guardbands…
When parallel speedups hit the memory wall
Alex F. A. Furtunato, Kyriakos Georgiou, Kerstin Eder +1
After Amdahl's trailblazing work, many other authors proposed analytical speedup models but none have considered the limiting effect of the memory wall. These models exploited aspe…
Energy-Optimal Configurations for Single-Node HPC Applications
Vitor R. G. Silva, Alex Furtunato, Kyriakos Georgiou +2
Energy efficiency is a growing concern for modern computing, especially for HPC due to operational costs and the environmental impact. We propose a methodology to find energy-optim…
Perpertual Coupled Simulated Annealing for Continuous Optimization
Kayo Gonçalves-e-Silva, Samuel Xavier-de-Souza
Global optimization heuristics are popular to optimize hard non-convex problems. Despite their irrefutably large cost-to-solution, in the lack of other working greedy or convex app…
The Benefits of Low Operating Voltage Devices to the Energy Efficiency of Parallel Systems
Samuel Xavier-de-Souza, Eduardo A. Neves, Alex F. A. Furtunato +3
Programmable circuits such as general-purpose processors or FPGAs have their end-user energy efficiency strongly dependent on the program that they execute. Ultimately, it is the p…
The IoT energy challenge: A software perspective
Kyriakos Georgiou, Samuel Xavier-de-Souza, Kerstin Eder
The Internet of Things (IoT) sparks a whole new world of embedded applications. Most of these applications are based on deeply embedded systems that have to operate on limited or u…
Memory-Usage Advantageous Block Recursive Matrix Inverse
Iria C. S. Cosme, Isaac F. Fernandes, João L. de Carvalho +1
The inversion of extremely high order matrices has been a challenging task because of the limited processing and memory capacity of conventional computers. In a scenario in which t…