Mapping the Arnold web with a graphic processing unit

Mapping the Arnold web with a graphic processing unit.

The Arnold diffusion constitutes a dynamical phenomenon which may occur in the phase space of a non-integrable Hamiltonian system whenever the number of the system degrees of freedom is M ≥ 3. The diffusion is mediated by a web-like structure of resonance channels, which penetrates the phase space and allows the system to explore the whole energy shell. The Arnold diffusion is a slow process; c...

Density functional theory calculation on many-cores hybrid central processing unit-graphic processing unit architectures.

We present the implementation of a full electronic structure calculation code on a hybrid parallel architecture with graphic processing units (GPUs). This implementation is performed on a free software code based on Daubechies wavelets. Such code shows very good performances, systematic convergence properties, and an excellent efficiency on parallel computers. Our GPU-based acceleration fully p...

Using Graphic Processing Unit in Block Cipher Calculations

A high performance parallelizable MRI physics simulator with graphic processing unit technology

Background The acquisition of high quality Magnetic Resonance (MR) images requires exploring a parameter space for image quality improvement. This iterative process can benefit from simulations of MRI pulse sequences and imaging protocols. Current MRI physics simulators are confined to few pulse sequences and compromises are made due to the high computational power needed. A step-by-step compre...

Real-time liquid-crystal atmosphere turbulence simulator with graphic processing unit.

To generate time-evolving atmosphere turbulence in real time, a phase-generating method for our liquid-crystal (LC) atmosphere turbulence simulator (ATS) is derived based on the Fourier series (FS) method. A real matrix expression for generating turbulence phases is given and calculated with a graphic processing unit (GPU), the GeForce 8800 Ultra. A liquid crystal on silicon (LCOS) with 256x256...