Particle flow simulation system and method

A simulation method and particle technology, applied in the field of GPU-based particle simulation system, can solve the problems of insufficient CPU computing power, high construction cost, large power consumption, etc. Calculate the effect of the effect

Active Publication Date: 2013-09-25
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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Problems solved by technology

At present, the implementation of DEM methods is mainly based on CPU. Due to the insufficient computing power of CPU, these methods can only calculate small spatial and temporal dimensions within an acceptable computer time; or due to high construction costs, it is necessary to build Large-scale or even ultra-large-sca

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  • Particle flow simulation system and method

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Embodiment Construction

[0070] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0071] figure 1 is a schematic structural diagram of a GPU-based particle flow simulation system according to an embodiment of the present invention. like figure 1 As shown, the system includes a front-end server 10, a back-end server 20, a management node 30, a plurality of computing nodes 40-1, . . . , 40N (N is an integer greater than 1), an IB switch 50 and an Ethernet switch 60. also, figure 1 It is also shown that the system includes a client and a storage device. The client can communicate with the front-end server 10 via the Internet, which enables field experimenters to conduct particle flow simulation experiments remotely. For example, the user can inp...

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Abstract

The invention discloses a particle flow simulation system and method on the basis of GPUs. The method includes: generating particle information according to particle modeling information input by a client, and generating geometry information; receiving the particle information and the geometry information, determining that which GPUs in which computational nodes are used according to the number of particles and the number of idle GPUs in the computational nodes, determining that which particles are calculated by which GPUs in which computational nodes according to the determined number of the GPUs and distribution condition of the particles in space, and performing distribution according to determined results; calculating stress of each particle caused by impact of the particles in a plurality of GPUs in a parallel mode, and working out accelerated speed further so as to simulate particle flow; showing simulation results. According to the particle flow simulation system and method, high-density particle virtual experiment simulation can be achieved, energy consumption is reduced, and meanwhile calculation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of particle flow simulation, in particular to a GPU-based particle simulation system and method applicable to the research of granular matter or solid structure. Background technique [0002] Particle system has always been the research content of people's attention. In industrial fields such as: food control, chemistry, civil engineering, oil and gas, mining, pharmaceuticals, powder metallurgy, energy and other fields have a large number of applications; in terms of theoretical research, how to accumulate the most dense accumulation, and under what circumstances the sand pile collapses To study issues such as avalanches. In order to study related particle systems, people need to build large-scale experimental particle systems, which is time-consuming and labor-intensive. Moreover, due to the high cost, some particle systems need to operate under extreme conditions, so it is impossible to build them throug...

Claims

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Application Information

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IPC IPC(8): G06F17/50G16B45/00
CPCG06F30/20G06F17/10G06T2210/52G06T2210/56
Inventor 杨磊齐记田园高笑菲
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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