Fast and Parallel Computational Techniques Applied to Numerical Modeling of RFX-mod Fusion Device

Authors

  • Domenico Abate 1 DIEI, Università di Cassino e del Lazio Meridionale, Loc. Folcara, 03043 Cassino (FR), Italy, 2 Consorzio RFX, Corso Stati Uniti 4, Padova, Italy
  • Bruno Carpentieri Nottingham Trent University, School of Science and Technology, Burton Street, Nottingham NG1 4BU, UK
  • Andrea G. Chiariello DIII, Seconda Università di Napoli, Via Roma 29, Aversa (CE), Italy
  • Giuseppe Marchiori Consorzio RFX, Corso Stati Uniti 4, Padova, Italy
  • Nicolò Marconato Consorzio RFX, Corso Stati Uniti 4, Padova, Italy
  • Stefano Mastrostefano DIEI, Università di Cassino e del Lazio Meridionale, Loc. Folcara, 03043 Cassino (FR), Italy
  • Guglielmo Rubinacci DIETI, Università di Napoli Federico II, Via Claudio 21, 80125, Napoli
  • Salvatore Ventre DIEI, Università di Cassino e del Lazio Meridionale, Loc. Folcara, 03043 Cassino (FR), Italy
  • Fabio Villone DIEI, Università di Cassino e del Lazio Meridionale, Loc. Folcara, 03043 Cassino (FR), Italy

Keywords:

Fusion plasma devices, GPUs, HPC, integral formulation, parallelism

Abstract

This paper presents fast computational techniques applied to modelling the RFX-mod fusion device. An integral equation model is derived for the current distribution on the active coils of the conducting structures, and the input-output transfer functions are computed. Speed-up factors of about 200 can be obtained on hybrid CPU-GPU parallelization against uniprocessor computation.

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References

F. Villone, A. G. Chiariello, S. Mastrostefano, A. Pironti, and S. Ventre, “GPU-accelerated analysis of vertical instabilities in ITER including threedimensional volumetric conducting structures,” Plasma Phys. Control. Fusion, vol. 54, no. 8, 2012.

G. Rubinacci, S. Ventre, F. Villone, and Y. Liu, “A fast technique applied to the analysis of resistive wall modes with 3D conducting structures,” Journal of Comp. Phys., vol. 228, no. 5, pp. 1562- 1572, 2009.

P. Sonato, et al., Fusion Eng. Des., vol. 66-68, pp. 161, 2003.

F. Villone, et al., “ITER passive and active RWM analysis with the CarMa code,” 38th EPS Conference, paper P5.107, 2011.

R. Fresa, G. Rubinacci, and S. Ventre, “An eddy current integral formulation on parallel computer systems,” Int. Journal for Numerical Methods in Engineering, vol. 62, no. 9, pp. 1127-1147, 2005.

G. Rubinacci, A. Tamburrino, and S. Ventre, “Fast numerical techniques for electromagnetic nondestructive evaluation,” Nondestr. Testing Eval., vol. 24, pp. 165-194, 2009.

R. Albanese and F. Villone, “The linearized CREATE-L plasma response model for the control of current, position and shape in tokamaks,” Nucl. Fusion, vol. 38, no. 5, pp. 723, 1998.

A. Portone, et al., “Linearly perturbed MHD equilibria and 3D eddy current coupling via the control surface method,” Plasma Phys. Control. Fusion, 50, 085004, 2008.

A. Capozzoli, et al., “Speeding up aperiodic reflectarray antenna analysis by CUDA dynamic parallelism,” Proc. of the Int. Conf. on Numerical Electromagn. Model. and Opt. for RF, Microwave and Terahertz Appl., Pavia, Italy, pp. 1-4c, 2014.

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Published

2021-07-25

How to Cite

[1]
Domenico Abate, “Fast and Parallel Computational Techniques Applied to Numerical Modeling of RFX-mod Fusion Device”, ACES Journal, vol. 33, no. 02, pp. 176–179, Jul. 2021.

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