Boundary Element Analysis Of The Multi-capsule
Flow Using An Ultra-high Speed GPGPU
Computation
Author(s)
D. Matsunaga, Y. Imai, T. Ishikawa & T. Yamaguchi
Abstract
A capsule is a liquid drop enclosed by a thin membrane. Understanding the
mechanics of capsule suspension is important in a variety of applications.
However, computational time is still a barrier against successful simulations for
dense suspension of capsules.We have developed an ultra-high speed computation
method based on Graphics Processing Unit (GPU) computing for simulatingmulticapsule
flow.
In the case of using single GPU, the performance achieves 1.20 TFlops that
corresponds to a 550-fold speed up compared with a CPU core.We also developed
an algorithm of multi GPUs that hide data communication by overlapping with
computational time. Since our method enables us to simulate from one to a few
hundred capsules in a realistic computational time, the method could be a powerful
solution for simulating the capsule suspension.
1 Introduction
A capsule is a liquid drop enclosed by a deformable membrane. Biological cells
and membrane bounded drugs can be classified into capsules. To simulate the
motion of capsules, a variety of numerical methods, such as boundary element
(BE) method and immersed boundary (IB) method, have been employed. The
BE method, which is used in the present work, is the most accurate method to
simulate the motion of capsules, since the method directly treats jump condition
at the membrane without any interpolation.Various studies have been conducted to
simulate the detailed motion of capsules using this method, such as deformation
Keywords
Related Book
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