Implementation of matrix compression in the coupling of JOREK to realistic 3D conducting wall structures
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866911971729735680 |
|---|---|
| author | Cipolletta, Federico Schwarz, Nina Hoelzl, Matthias Ventre, Salvatore Isernia, Nicola Rubinacci, Guglielmo Soba, Alejandro Mantsinen, Mervi Johanna Team, the JOREK |
| author_facet | Cipolletta, Federico Schwarz, Nina Hoelzl, Matthias Ventre, Salvatore Isernia, Nicola Rubinacci, Guglielmo Soba, Alejandro Mantsinen, Mervi Johanna Team, the JOREK |
| contents | JOREK is an advanced non-linear simulation code for studying MHD instabilities in magnetically confined fusion plasmas and their control and/or mitigation. A free-boundary and resistive wall extension was introduced via coupling to the STARWALL and CARIDDI codes, both able to provide dense response matrices describing the electromagnetic interactions between plasma and conducting structures. For detailed CAD representations of the conducting structures and high resolutions for the plasma region, memory and computing time limitations restrict the possibility of simulating the ITER tokamak. In the present work, the Singular Value Decomposition provided by routines from the ScaLAPACK library has been successfully applied to compress some of the dense response matrices and thus optimize memory usage. This is demonstrated for simulations of Tearing Mode and Vertical Displacement Event instabilities. An outlook to future applications on large production cases and further extensions of the method are discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_16546 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Implementation of matrix compression in the coupling of JOREK to realistic 3D conducting wall structures Cipolletta, Federico Schwarz, Nina Hoelzl, Matthias Ventre, Salvatore Isernia, Nicola Rubinacci, Guglielmo Soba, Alejandro Mantsinen, Mervi Johanna Team, the JOREK Plasma Physics JOREK is an advanced non-linear simulation code for studying MHD instabilities in magnetically confined fusion plasmas and their control and/or mitigation. A free-boundary and resistive wall extension was introduced via coupling to the STARWALL and CARIDDI codes, both able to provide dense response matrices describing the electromagnetic interactions between plasma and conducting structures. For detailed CAD representations of the conducting structures and high resolutions for the plasma region, memory and computing time limitations restrict the possibility of simulating the ITER tokamak. In the present work, the Singular Value Decomposition provided by routines from the ScaLAPACK library has been successfully applied to compress some of the dense response matrices and thus optimize memory usage. This is demonstrated for simulations of Tearing Mode and Vertical Displacement Event instabilities. An outlook to future applications on large production cases and further extensions of the method are discussed. |
| title | Implementation of matrix compression in the coupling of JOREK to realistic 3D conducting wall structures |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2404.16546 |