Search for gravitational wave pulsars using efficient algorithm with GPGPU

2014 Fiscal Year Final Research Report

• Project/Area Number: 25800126
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: ITOH Yousuke 東京大学, 理学(系)研究科(研究院), 助教 (60443983)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 宇宙物理 / アルゴリズム / ハイパフォーマンスコンピューティング / 理論天文学

Outline of Final Research Achievements

We investigate possibility of reducing the computational cost in search for gravitational waves from pulsars using GPGPU. It was found that the current algorithm we use do not get any benefit from GPGPU if (financial, not computational) cost is taken into account. A KAGRA collaborator found it possible to make some suboptimal algorithm different from ours 100 times faster if using GPGPU with respect to the existing CPU code. The next step around we consider now is to widen the applicability of the suboptimal GPGPU code.

Free Research Field

重力波データ解析