Energy Efficiency Competition

Small Master Project

at

University of Bayreuth

Chair of

Applied Computer Science 2

Team 1: Vivek Mahto, Feruz Davletov Supervisor: Prof. Dr. Matthias Korch 15 March 2022

Contents 2

Contents

Introduction 1

1 Energy Measurement in X86 2

1.1 RAPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1.1 Intel vs AMD . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 Likwid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2.1 Short Introduction . . . . . . . . . . . . . . . . . . . . 4

1.2.2 Shared system . . . . . . . . . . . . . . . . . . . . . . 5

1.2.3 Distributed system . . . . . . . . . . . . . . . . . . . . 6

1.3 Benchmark Setup and Environment . . . . . . . . . . . . . . . 8

1.3.1 Idle energy measurement . . . . . . . . . . . . . . . . . 8