Improved parallel algorithms for 3D PIC simulation

Chen, 廖臣 Liao; Jun, 周俊 Zhou; Dagang, 刘大刚 Liu; Shenggang, 刘盛纲 Liu

doi:10.3788/hplpb20112304.1020

强激光与粒子束

2011

DOI: 10.3788/hplpb20112304.1020

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Improved parallel algorithms for 3D PIC simulation

廖臣 Liao Chen¹,

周俊 Zhou Jun²,

刘大刚 Liu Dagang³

et al.

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Research on parallel algorithm of high-power microwave devices simulation based on MPI-3

Liu

et al. 2022

AIP Advances

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Simulation of high-power microwave source devices generally uses parallel algorithms to speed up the operation. In recent years, with the upgrade of parallel technology, the parallel efficiency of the particle simulation software has been further improved. Existing MPI-2 parallel technology of particle simulation software CHIPIC realizes the access to the local memory space of other processes through message passing. The new version of the MPI-3 standard provides the shared memory feature, which allows the data to be directly called by each process in the shared memory window, which reduces the information transmission. In this paper, based on the shared memory feature of MPI-3, the electromagnetic particle simulation parallel algorithm and dynamic load balancing algorithm are designed in the particle simulation software. The implementation of the two algorithms can improve the parallel efficiency from different aspects. The RKA and magnetic isolation oscillator high-power microwave devices are used as the test models. The test results show that the electromagnetic particle simulation parallel algorithm based on the shared memory feature of MPI-3 can improve the efficiency of the software by up to 44%. The efficiency of the dynamic load balancing algorithm based on MPI-3 can also be improved by up to 38%.

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Research on parallel algorithm of high-power microwave devices simulation based on MPI-3

Liu

et al. 2022

AIP Advances

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Multi-objective design method for high-power microwave source devices based on preferred PIC/gNSGA-II

Hu,

Liu,

Liu

et al. 2024

Journal of Electromagnetic Waves and Applications

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Three-dimensional numerical simulation of the single-channel pulsed-power vacuum device

Pei-Pei¹,

Liu²,

Liu³

et al. 2013

Acta Phys. Sin.

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A single-channel pulsed-power vacuum device is studied. Based on the platform of CHIPIC, the limitation of memory and computation speeds of a single computer is broken through by the method of parallel computation of multi-computers. For the model of the whole device, the models of the parts of feed-in, convergence and transmission in the single-channel pulsed-power device are built, and the parameters are set up. The obtained voltages between the cathode and anode, as well as the currents of the cathode and the anode using the proposed models are in accordance with the theoretical ones. The single-channel pulsed-power vacuum device also can retain magnetically insulated and achieve the function of convergence of power. This shows the feasibility of the single-channel pulsed-power vacuum device.

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Improved parallel algorithms for 3D PIC simulation

Cited by 3 publications

References 0 publications

Research on parallel algorithm of high-power microwave devices simulation based on MPI-3

Research on parallel algorithm of high-power microwave devices simulation based on MPI-3

Multi-objective design method for high-power microwave source devices based on preferred PIC/gNSGA-II

Three-dimensional numerical simulation of the single-channel pulsed-power vacuum device

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