WebMar 29, 2024 · The wave is described by the below equation. (137) u t t = c 2 u x x u ( 0, t) = 0, u ( π, t) = 0, u ( x, 0) = sin ( x), u t ( x, 0) = sin ( x). Where, the wave speed c = 1 and the analytical solution to the above problem is given by sin ( x) ( sin ( t) + cos ( t)). WebCUDA Pseudo-code __global__ void RedBlackGaussSeidel(Grid P, Grid RHS, float h, int red_black) {int i = blockIdx.x*blockDim.x + threadIdx.x; int j = blockIdx.y*blockDim.y + threadIdx.y; i*=2; if (j%2 != red_black) i++; int idx = j*RHS.jstride + i*RHS.istride; P.buf[idx] = 1.0/6.0*(-h*h*R.buf[idx] + P.buf[idx + P.istride] + P.buf[idx –P.istride] +
(PDF) Accelerating a 3D finite-difference wave ... - ResearchGate
WebAug 17, 2012 · In case anybody is interested, I'm posting below a fully worked code concerning the optimization of the solution approach for the 2D heat equation. Five approaches are considered, using: Global memory, essentially the OP's approach; Shared memory of size BLOCK_SIZE_X x BLOCK_SIZE_Y not loading the halo regions; WebNov 1, 2014 · The CUDA version contains two approaches, one using global memory only and one using shared memory. In the latter case, I enforce synchronization between magnetic field and electric field updates by launching two different kernels. foxhall associates washington dc
Chapter 44. A GPU Framework for Solving Systems of …
WebJun 10, 2024 · In this case, a wave of 80 thread blocks fully occupies the GPU. Suppose a task creates 96 thread blocks. The first 80 will be computed efficiently as a ‘full wave’ while the 16 leftover thread blocks will make up an inefficient ‘tail wave’ during which the GPU is underutilized. Figure 5 illustrates a simple version of this situation ... WebSep 22, 2016 · CUDA_FDTD_2D_acoustic_wave_propagation Public Acoustic wave propagation in 2D domain using CUDA, O (2,8). Solve second order wave equation in time domain using finite-differences. Cuda 19 12 PETSc_FDTD_3D_acoustic_wave_propagation Public 3D acoustic wave propagation in homogeneous isotropic media using PETSc and … WebSep 12, 2024 · Looking at the first snapshot in Figure 16.3.2, the y-position of the string between x = 0 and x = λ can be modeled as a sine function. This wave propagates down the string one wavelength in one period, as seen in the last snapshot. The wave therefore moves with a constant wave speed of v = λ / T. blacktown shopping