FFT in the Exascale

Challenges and Opportunities

Outline

• Introduction - Samar Aseeri
• Opening remarks - Jens-Henrik Göbbert
• Speakers (10 minutes each):
  • Daisuke Takahashi
  • Hari Subramoni
  • Peter Steinbach
  • Michael Quell
• Open Discussion
• Closing - Benson Muite

Samar Aseeri

King Abdullah University of Science and Technology

Moderator:
Jens Henrik Göbbert

Jülich Supercomputing Centre

Daisuke Takahashi

University of Tsukuba

Hari Subramoni

Ohio State University

Peter Steinbach

Max Planck Institute of Molecular Cell Biology and Genetics

Gearshifft

• https://www.kcod.de/gearshifft/
• https://github.com/mpicbg-scicomp/gearshifft

Michael Quell

Technical University of Vienna

Open Discussion

(FFT in the Exascale: Opportunities and Challenges)

• Opportunities
  • ....
  • ....
• Challenges
  • ....
  • ....

Poll

• FFT Dimension:
  • https://bit.ly/2yLGx0F
• FFT Size:
  • https://bit.ly/2KpORVe
• Is the FFT a bottleneck for you?
  • https://bit.ly/2lDDNsK
• Are you considering alternative algorithms?
  • https://bit.ly/2MrvsUl
• What percentage of your code run time is devoted to doing FFTs?
  • https://bit.ly/2KdxQl5

Benson Muite

University of Tartu

Summary

• Thanks for attending
• www.fft.report
  • Contribute to the discussion
  • Further events
    • Workshop at HIPC 2018 in India