15 citations · 40 across the 6 of their papers we have counts for
6 papers
Accelerating DEM simulations on GPUs by reducing the impact of warp divergences
Yasuhiro Nakahara, Teruyoshi Washizawa
A way to accelerate DEM calculations on the GPUs is developed. We examined how warp divergences take place in the contact detection and the force calculations taking account of the…
On the Behavior of the Residual in Conjugate Gradient Method
Teruyoshi Washizawa
In conjugate gradient method, it is well known that the recursively computed residual differs from true one as the iteration proceeds in finite arithmetic. Some work have been devo…
A New Approach for Solving Singular Systems in Topology Optimization Using Krylov Subspace Methods
Teruyoshi Washizawa, Akira Asai, Nobuhiro Yoshikawa
In topology optimization, the design parameter with no contribution to the objective function vanishes. This causes the stiffness matrix to become singular. We show that a local op…
Application of Hopfield Network to Saccades
Teruyoshi Washizawa
Human eye movement mechanisms (saccades) are very useful for scene analysis, including object representation and pattern recognition. In this letter, a Hopfield neural network to e…
Parallel Computing of Discrete Element Method on GPU
Teruyoshi Washizawa, Yasuhiro Nakahara
We investigate applicability of GPU to DEM. NVIDIA's code obtained superior performance than CPU in computational time. A model of contact forces in NVIDIA's code is too simple for…
A2ILU: Auto-accelerated ILU Preconditioner for Sparse Linear Systems
Yuichiro Miki, Teruyoshi Washizawa
The ILU-based preconditioning methods in previous work have their own parameters to improve their performances. Although the parameters may degrade the performance, their determina…