Workshop on 1 st JILP Data Prefetching Championship - - PowerPoint PPT Presentation

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Apr 11, 2023 586 likes •673 views

Workshop on 1 st JILP Data Prefetching Championship http://www.jilp.org/dpc/ Alaa Alameldeen Eric Rotenberg Intel Corporation North Carolina State University Organizing Committee Chair Program Committee Chair Results Summary

SLIDE 1

Workshop on 1st JILP Data

Prefetching Championship

http://www.jilp.org/dpc/

Eric Rotenberg North Carolina State University Program Committee Chair Alaa Alameldeen Intel Corporation Organizing Committee Chair

SLIDE 2

Results Summary

SLIDE 3

Performance Score Calculation

Three Configurations

– Big L2 cache (2MB), unlimited bandwidth – Big L2 cache, limited bandwidth (max one L2 request every 10 cycles) – Small L2 cache (512KB), limited bandwidth

Performance score:

– Get speedup over no prefetching for selected SPEC2006 traces – Compute Geometric mean for speedups (over no pref) for each configuration – Score = sum of Geometric means across three configs

Reference points:

– No pref score = 3.0 – Simple stride-based pref score = 3.27

SLIDE 4

(Anonymous) Results Summary

2 2.5 3 3.5 4 4.5 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Performance Score

SLIDE 5

Top Three Prefetchers

1.417 1.406 1.509 4.332 3 1.410 1.438 1.487 4.335 2 1.498 1.471 1.468 4.437 1

Config3

G. Mean

Config2

G. Mean

Config1

G. Mean

Score Rank

SLIDE 6

Awards

PC Selection for Best Paper

– L. Ramos, J. Briz, P. Ibáñez, V. Viñals (University of Zaragoza, Spain)

3rd Place

– L. Ramos, J. Briz, P. Ibáñez, V. Viñals (University of Zaragoza, Spain)

2nd Place

– M. Dimitrov, H. Zhou (University of Central Florida, USA)

Champion

– Y. Ishii (NEC Corporation), M. Inaba, K. Hiraki (The University of Tokyo, Japan)

SLIDE 7

Results Summary

3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 18c 20b 20a 25 18b 18a 16a 22 24 19a 19a 19a 21b 17 15 16b 21a 14 Paper # Perforamnce Score