.png){kind=icon}
返回
Efficient same-dimensional implicit time advancement parallel scheme and optimization methods for the iteration parameters using a graphics-processing unit
.png){kind=icon}
PRE
AI
DOI：10.1063/5.0107571.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Many studies have focused on the acceleration of computational fluid dynamics (CFD) using multicore hardware such as graphics-processing units (GPUs) in the field of parallel computing. In GPU acceleration, CFD parallel granularity generally refers to the point granularity parallelization as a unit of the grid. An implicit time advancement scheme is more efficient and faster than an explicit time advancement scheme for CFD. However, for commonly used implicit schemes, such as the lower-upper symmetric Gauss-Seidel (LUSGS) scheme, the parallel dimensionality is reduced, resulting in a highly time-consuming procedure. In this paper, the data-parallel upper-lower relaxation (DPLUR) scheme based on Jacobi iteration is used and then implemented on a GPU. Numerical experiments are carried out and show that the computing speed of point granularity parallelization using the DPLUR scheme, especially implemented on a GPU, is much higher than that of dimensionality reduction using the LUSGS scheme. Moreover, the influence of different Jacobi inner iteration steps (JIIS) on the convergence time is discussed, and two JIIS optimization algorithms are proposed according to the characteristics of convergence. On the basis of the memory access form, a DPLUR red black (DPRB) scheme with more stable and faster convergence than the conventional DPLUR scheme is developed. Finally, some standard cases are adopted to verify the effectiveness of DPRB schemes with the JIIS optimization algorithm. Published under an exclusive license by AIP Publishing.
Keyword:
GRIDS
期刊
IF:
4.3
论文数:
2.9W
被引数:
8.0W
机构
引用论文
Evaluation of the humoral immune response induced by vaccination for canine distemper and parvovirus: a pilot study疫苗接种诱导犬瘟热和细小病毒体液免疫反应的评价：一项初步研究
OAAI
OAAI分享收藏Replication of HIV-1 envelope protein cytoplasmic domain variants in permissive and restrictive cellsHIV-1包膜蛋白胞质域变体在允许细胞和限制性细胞中的复制.png)
VirologyOAAI
VirologyIF0
OAAI分享收藏Investigation of extramammary sources of Group B Streptococcus reveals its unusual ecology and epidemiology in camels对Group B Streptococcus非乳腺来源的调查揭示了其在骆驼中不寻常的生态学和流行病学。PLOS ONEOAAI
PLOS ONEIF0
OAAI分享收藏A parallel implicit method for the direct numerical simulation of wall-bounded compressible turbulence壁面可压缩湍流直接数值模拟的并行隐式方法
PREAI
分享收藏Mechanically Interlocked Molecules Assembled by π–π Recognition通过 π-π 识别组装的机械互锁分子ChemPlusChem
ChemPlusChemIF0
PREAI
分享收藏
查看更多内容