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conference paper · IOP Conference Series Materials Science and Engineering · 2020

Optimizing Speedup on Multicore Platform with OpenMP Schedule Clause and Chunk Size

Zahereel Ishwar Abdul Khalib, H Q Ng, Mohamed Elobaid Elshaikh, M N Othman

Cited by 2Open access

Abstract

Abstract Despite the description of schedule type which can be easily found at any OpenMP reference material, little is known about the effect of different schedule type and chunk size on the parallel performance of shared memory multicore processor. Literature shows that performance analysis on different multicore platform overlooked the effect of different schedule type and chunk size, where often it was not explicitly specified. Hence, default assignment of the loop iterations among threads is assumed. By default, static schedule is used and size of chunk which is the ratio of total number of iteration to the number of threads is implemented. This research analyses the effect of different schedule type and chunk size on speedup achieved of different shared memory multicore platform under regular workload. Apart from that, the performance gain obtained after turning on/off certain multicore technologies and after turning on/off selected number of active cores per processor is also analysed. Results shows that different multicore technology exhibit different speedup value under different combination of schedule type and chunk size. Apart from that, it also observe that different multicore platform is better than the other in terms of speedup as the number of cores are increased.

Cite this paper

APA 7

Khalib, Z. I. A., Ng, H. Q., Elshaikh, M. E., & Othman, M. N. (2020). Optimizing Speedup on Multicore Platform with OpenMP Schedule Clause and Chunk Size. IOP Conference Series Materials Science and Engineering, 767(1), 012037. https://doi.org/10.1088/1757-899x/767/1/012037

MLA 9

Khalib, Zahereel Ishwar Abdul, et al. “Optimizing Speedup on Multicore Platform with OpenMP Schedule Clause and Chunk Size.” IOP Conference Series Materials Science and Engineering, vol. 767, no. 1, 2020, p. 012037, https://doi.org/10.1088/1757-899x/767/1/012037.

Chicago

Khalib, Zahereel Ishwar Abdul, H Q Ng, Mohamed Elobaid Elshaikh, and M N Othman. 2020. “Optimizing Speedup on Multicore Platform with OpenMP Schedule Clause and Chunk Size.” IOP Conference Series Materials Science and Engineering 767 (1): 012037. https://doi.org/10.1088/1757-899x/767/1/012037.

Harvard

Khalib, Z.I.A. et al. (2020) ‘Optimizing Speedup on Multicore Platform with OpenMP Schedule Clause and Chunk Size’, IOP Conference Series Materials Science and Engineering, 767(1), p. 012037. Available at: https://doi.org/10.1088/1757-899x/767/1/012037.

BibTeX
@article{khalib2020optimizing,
  title = {{Optimizing Speedup on Multicore Platform with OpenMP Schedule Clause and Chunk Size}},
  author = {Khalib, Zahereel Ishwar Abdul and Ng, H Q and Elshaikh, Mohamed Elobaid and Othman, M N},
  journal = {IOP Conference Series Materials Science and Engineering},
  volume = {767},
  number = {1},
  pages = {012037},
  year = {2020},
  doi = {10.1088/1757-899x/767/1/012037}
}

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