Parallel optimization of three-dimensional wedge-shaped underwater acoustic propagation based on MPI+OpenMP hybrid programming model

Zhu, Zijie; Wang, Yongxian; Zhu, Xinhua; Liu, Wei; Liu, Qiang; Xiao, Wenbin; Cheng, Xinghua

doi:10.1007/s11227-020-03466-w

Cited by 3 publications

(6 citation statements)

References 20 publications

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“…In 2019, Zhu et al [118] carried out parallel research on 3D large-scale sound field computing in a 3D wedge-shaped seabed environment and adopted the MPI+OpenMP hybrid parallel method to achieve intra-node multi-core and internode parallelism. The underwater acoustic propagation problem of a 3D wedge-shaped seafloor is one of the benchmark problems in computational ocean acoustics research and is suitable for describing offshore continental shelf and slope topography.…”

Section: Cpu Parallel Optimization Of Image Source Methodsmentioning

confidence: 99%

“…The former moves the com-putation of expensive trigonometric functions out of the loop, thereby reducing their execution times. The latter is optimized through loop blocking to meet continuity in space and time, thereby improving the hit rate and efficiency of memory access (as shown in Fig, 6(a) [118] ). Optimization based on OpenMP is for matrices that involve large dimension values, such as the solution of seabed reflection coefficients, and the solution process of each element is relatively independent.…”

Section: Cpu Parallel Optimization Of Image Source Methodsmentioning

confidence: 99%

“…In addition, deep MPI optimization was conducted for the field volume Simpson integral of the fourth part of the image source (as shown in Fig. 6(b) [118] ). Cyclic block calculation is used in the column direction calculation, multi-process parallel optimization technology is used in the row direction calculation, and finally, by using the full-collection aggregate communication function, each process can obtain completely consistent integration results for the next calculation.…”

Section: Cpu Parallel Optimization Of Image Source Methodsmentioning

confidence: 99%

“…In the end, the blocking full-collection function is replaced with non-blocking pointto-point communication and the tasks of each process are divided to achieve overlap of computing and communication. [118] @Copyright 2020 TJSC; (b) Deep MPI parallel optimization [118] @Copyright 2020 TJSC. .…”

Section: Cpu Parallel Optimization Of Image Source Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Parallel optimization of underwater acoustic models: A survey

Zhu

et al. 2022

Chinese Phys. B

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Underwater acoustic models are effective tools for simulating underwater sound propagation. More than 50 years of research have been conducted on the theory and computational models of sound propagation in the ocean. Unfortunately, underwater sound propagation models were unable to solve practical large-scale three-dimensional problems for many years due to limited computing power and hardware conditions. Since the mid-1980s, research on high performance computing for acoustic propagation models in the field of underwater acoustics has flourished with the emergence of high-performance computing platforms, enabling underwater acoustic propagation models to solve many practical application problems that could not be solved before. In this paper, the contributions of research on high-performance computing for underwater acoustic propagation models since the 1980s are thoroughly reviewed and the possible development directions for the future are outlined.

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Section: Cpu Parallel Optimization Of Image Source Methodsmentioning

confidence: 99%

Section: Cpu Parallel Optimization Of Image Source Methodsmentioning

confidence: 99%

Section: Cpu Parallel Optimization Of Image Source Methodsmentioning

confidence: 99%

Section: Cpu Parallel Optimization Of Image Source Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Parallel optimization of underwater acoustic models: A survey

Zhu

et al. 2022

Chinese Phys. B

Self Cite

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“…In 2019, Xiao et al used OpenMP to accelerate and optimize the three-dimensional wedge-shaped seabed model in parallel on an HPC platform. In 2021, Zhu et al proposed parallelization and optimization to efficiently simulate a three-dimensional underwater acoustic propagation model on the Tianhe-2 supercomputer [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

A High-Efficiency Spectral Method for Two-Dimensional Ocean Acoustic Propagation Calculations

Wang

Zhu

et al. 2021

Entropy

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The accuracy and efficiency of sound field calculations highly concern issues of hydroacoustics. Recently, one-dimensional spectral methods have shown high-precision characteristics when solving the sound field but can solve only simplified models of underwater acoustic propagation, thus their application range is small. Therefore, it is necessary to directly calculate the two-dimensional Helmholtz equation of ocean acoustic propagation. Here, we use the Chebyshev–Galerkin and Chebyshev collocation methods to solve the two-dimensional Helmholtz model equation. Then, the Chebyshev collocation method is used to model ocean acoustic propagation because, unlike the Galerkin method, the collocation method does not need stringent boundary conditions. Compared with the mature Kraken program, the Chebyshev collocation method exhibits a higher numerical accuracy. However, the shortcoming of the collocation method is that the computational efficiency cannot satisfy the requirements of real-time applications due to the large number of calculations. Then, we implemented the parallel code of the collocation method, which could effectively improve calculation effectiveness.

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A novel hybrid superposition method for predicting ship seismic wave in shallow sea

Xiang²,

Qin³

2022

Ocean Engineering

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Parallel optimization of three-dimensional wedge-shaped underwater acoustic propagation based on MPI+OpenMP hybrid programming model

Cited by 3 publications

References 20 publications

Parallel optimization of underwater acoustic models: A survey

Parallel optimization of underwater acoustic models: A survey

A High-Efficiency Spectral Method for Two-Dimensional Ocean Acoustic Propagation Calculations

A novel hybrid superposition method for predicting ship seismic wave in shallow sea

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