Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-core parallel method of ray underwater sound propagation model

A propagation model and ray technology, which is applied in the intersection of high-performance computing and computing ocean acoustics, and can solve problems such as linear increase in sound field computing requirements.

Pending Publication Date: 2021-11-19
NAT UNIV OF DEFENSE TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase of the sound field calculation sea area and the increase in the number of rays, the sound field calculation requirements in the ray underwater acoustic model increase linearly. bottleneck

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-core parallel method of ray underwater sound propagation model
  • Multi-core parallel method of ray underwater sound propagation model
  • Multi-core parallel method of ray underwater sound propagation model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The invention will be described in detail below in conjunction with specific embodiments.

[0036] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The invention provides a multi-core parallel method for a ray underwater acoustic propagation model. refer to figure 1 , an overall flow chart of the multi-core parallel method for the ray underwater acoustic propagation model provided by the present invention, specifically including the following steps:

[0038] Step 1: Use performance analysis tools to analyze the serial code of the ray hydroacoustic model, find hot functions in the serial calculation of the ray ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of high-performance calculation and calculation marine acoustics crossing, and particularly relates to a multi-core parallel method of a ray underwater sound propagation model. The method comprises the steps: analyzing a hot spot area of the ray underwater acoustic model through a performance analysis tool, carrying out parallelism analysis on a hot spot function of the ray underwater acoustic model, designing a multi-core parallel strategy, and adopting an OpenMP programming model to realize multi-core parallelism of the ray underwater acoustic model. According to the method, a parallel computing framework of a ray underwater sound propagation model is constructed, the calculation efficiency of a ray underwater sound propagation sound field is effectively improved, and the parallel efficiency of 60% or above is obtained for sound field calculation of a multi-core CPU calculation platform and a typical marine environment; and a rapid sound field calculation model is provided for sonar performance forecasting, underwater target positioning, marine environment parameter inversion and the like.

Description

technical field [0001] The invention belongs to the interdisciplinary technical field of high-performance computing and computing ocean acoustics, and in particular relates to a multi-core parallel method for a ray underwater acoustic propagation model. Background technique [0002] The underwater acoustic propagation model is the modeling of sound propagation in the ocean. The current main underwater acoustic propagation models include normal wave model, parabolic model, and ray model. Among these models, the ray model has more obvious advantages in some cases , For example, in the shallow sea environment, when the sound source is at high frequency, the ray model has good applicability, especially in deep sea conditions, whether it is a high-frequency or low-frequency sound source, the ray model has good adaptability. However, with the increase of the sound field calculation area and the increase in the number of rays, the sound field calculation requirements in the ray und...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/41
CPCG06F8/45
Inventor 蓝强马树青颜冰肖汶斌刘巍程兴华王勇献王文珂张理论
Owner NAT UNIV OF DEFENSE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com