Performance predictors for graphics processing units applied to dark-silicon-aware design space exploration

Research output: Journal contributionsJournal articlesResearchpeer-review


The limitations on the scalability of computer systems imposed by the dark-silicon effects are so severe that they support the extensive use of heterogeneity such as the GP-GPU for general purpose processing. Performance simulators of GP-GPU heterogeneous systems aim to provide performance accuracy at the cost of execution time. In this work, we handle time-consuming simulations of design space exploration systems based on GPUs. We have developed performance predictors based on machine learning (ML) algorithms and evaluated them in accuracy and throughput (number of predictions per second). We measure model accuracy through the mean absolute percentage error (MAPE) and the model efficiency through a throughput metric (millions of predictions per second). Our experiments revealed that decision trees predictors are the most promising regarding accuracy and efficiency. We applied the best predictors into the MultiExplorer, a dark silicon-aware design space exploration tool that allows designers to explore the architecture and microarchitecture of multicore/manycore system design.

Original languageEnglish
Article numbere6877
JournalConcurrency and Computation: Practice and Experience
Issue number17
Number of pages16
Publication statusPublished - 01.08.2023
Externally publishedYes

Bibliographical note

Special Issue: WSCAD 2020. PDCAT 2020/PDCAT‐PAAP 2020

This study was financed in part by FUNDECT and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior ‐ Brasil (CAPES) ‐ Finance Code 001.

    Research areas

  • dark-silicon, design space exploration, GPUs, heterogeneous computing, performance predictors
  • Business informatics