Publications

Turbulent generation of poloidal asymmetries of the electric potential in a tokamak

P. Donnel, X. Garbet, Y. Sarazin, Y. Asahi, F.Wilczynsky, E. Caschera, G. Dif-Pradalier, P. Ghendrih, C. Gillot

Synergy of turbulent and neoclassical transport through poloidal convective cells

Y. Asahi, V. Grandgirard, Y. Sarazin, P. Donnel, X. Garbet, Y. Idomura, G. Dif-Pradalier, G. Latu

Particle transport due to energetic-particle-driven geodesic acoustic modes

D. Zarzoso, D. del-Castillo-Negrete, D. F. Escande, Y. Sarazin, X. Garbet, V. Grandgirard, C. Passeron, G. Latu, S. Benkadda

Contribution of kinetic electrons to GAM damping

C. Ehrlacher, X. Garbet, V. Grandgirard, Y. Sarazin, P. Donnel, E. Caschera, P. Ghendrih, D. Zarzoso

A multi-species collisional operator for full-F global gyrokinetics codes : Numerical aspects and validation with the GYSELA code

P. Donnel, X. Garbet, Y. Sarazin, V. Grandgirard, Y. Asahi, N. Bouzat, E. Caschera, G. Dif-Pradalier, Ch. Ehrlacher, Ph. Ghendrih

Optimization of Fusion Kernels on Accelerators with Indirect or Strided Memory Access Patterns

Y. Asahi, G. Latu, T. Ina, Y. Idomura, V. Grandgirard, X. Garbet

The EXB staircase of magnetised plasmas

G. Dif-Pradalier, G. Hornung, X. Garbet, Ph. Ghendrih, V. Grandgirard, G. Latu, Y. Sarazin

Self-consistent gyrokinetic modeling of neoclassical and turbulent impurity transport

D. Esteve, Y. Sarazin, X. Garbet, V. Grandgirard, S. Breton, P. Donnel, Y. Asahi, C. Bourdelle, G. Dif-Pradalier, C. Ehrlacher, C. Emeriau, P. Ghendrih, C. Gillot, G. Latu, C. Passeron

Impact of poloidal convective cells on momentum flux in tokamaks

X Garbet, Y Asahi, P Donnel, C Ehrlacher, G Dif-Pradalier, P Ghendrih, V Grandgirard, Y Sarazin

Evidence for Global Edge-Core Interplay in Fusion Plasmas

G Dif-Pradalier

Cross-code gyrokinetic verification and benchmark on the linear collisionless dynamics of the geodesic acoustic mode

A. Biancalani, A. Bottino, C. Ehrlacher, V. Grandgirard, G. Merlo, I. Novikau, Z. Qiu, E. Sonnendrücker, X. Garbet, T. Goerler, S. Leerink, F. Palermo, D. Zarzoso

Benchmarking of flux-driven full-F gyrokinetic simulations

Yuuichi Asahi, Dr. Virginie Grandgirard, Yasuhiro Idomura, Dr. Xavier Garbet, Guillaume Latu, Dr. Yanick Sarazin, Guilhem Dif-Pradalier, Peter Donnel, Charles Ehrlacher

Intercode comparison of gyrokinetic global electromagnetic modes

T. Goerler, N. Tronko, W.A Hornsby, R. Kleiber, C. Norscini, V. Grandgirard, F. Jenko, E. Sonnendrücker

Gyrokinetic investigation of the linear GAM dynamics

A. Biancalani, G. Merlo, V. Grandgirard

Toward memory scalability of GYSELA code for extreme scale computers

F. Rozar, G. Latu, J. Roman, V. Grandgirard

Shear flow instabilities induced by trapped ion modes in collisionless temperature gradient turbulence

F. Palermo, X. Garbet, A. Ghizzo, T. Cartier-Michaud, P. Ghendrih, V. Grandgirard, Y. Sarazin

Optimization of the gyroaverage operator based on Hermite interpolation

F. Rozar, Ch. Latu, G. Steiner, M. Mehrenberger, V. Grandgirard, J. Bigot, T. Cartier-Michaud, J. Roman

Gyroaverage operator for a polar mesh

Ch. Steiner, M. Mehrenberger, N. Crouseilles, V. Grandgirard, G. Latu, F Rozar

Comprehensive comparisons of GAM characteristics and dynamics between Tore Supra experiments and gyrokinetic simulations

A. Storelli, L. Vermare, P. Hennequin, Ö. Gürcan, G. Dif-Pradalier, Y. Sarazin, X. Garbet, T. Görler, R. Singh, P. Morel, V. Grandgirard, Ph. Ghendrih, the Tore Supra Team

An approach to increase reliability of HPC simulation, application to the GYSELA5D code

J. Bigot, T Cartier-Michaud, V. Grandgirard, G. Latu, Ch. Passeron, F. Rozar

A multi-species collisional operator for full-F gyrokinetics

D. Esteve, X. Garbet, Y. Sarazin, V. Grandgirard, T. Cartier-Michaud, G. Dif-Pradalier, P. Ghendrih, G.Latu, C. Norscini

Improving conservation properties of a 5D gyrokinetic semi-Lagrangian code

G. Latu, V. Grandgirard, J. Abiteboul, N. Crouseilles, G. Dif-Pradalier, X. Garbet, P. Ghendrih, M. Mehrenberger, E. Sonnendrücker, Y. Sarazin

Achieving Memory Scalability in the GYSELA Code to Fit Exascale Constraints

F. Rozar, G. Latu, J Roman

Unraveling Quasiperiodic Relaxations of Transport Barriers with Gyrokinetic Simulations of Tokamak Plasmas

A. Strugarek, Y. Sarazin, D. Zarzoso, J. Abiteboul, A. S. Brun, T. Cartier-Michaud, G. Dif-Pradalier, X. Garbet, Ph. Ghendrih, V. Grandgirard, G. Latu, Ch. Passeron, O. Thomine

Impact of Energetic-Particle-Driven Geodesic Acoustic Modes on Turbulence

D. Zarzoso, Y. Sarazin, X. Garbet, R. Dumont, A. Strugarek, J. Abiteboul, T. Cartier-Michaud, G. Dif-Pradalier, Ph. Ghendrih, V. Grandgirard, G. Latu, Ch. Passeron, O. Thomine

Turbulent momentum transport in core tokamak plasmas and penetration of scrape-off layer flows

J. Abiteboul, Ph. Ghendrih, V. Grandgirard, T. Cartier-Michaud, G. Dif-Pradalier, X. Garbet, G. Latu, Ch. Passeron, Y. Sarazin, A. Strugarek, O. Thomine, D. Zarzoso

Turbulent acceleration and heating in toroidal magnetized plasmas

X. Garbet, D. Esteve, Y. Sarazin, J. Abiteboul, C. Bourdelle, G. Dif-Pradalier, P. Ghendrih, V. Grandgirard, G. Latu, A. Smolyakov

Structure of nonlocality of plasma turbulence

Ö. D. Gürcan, L. Vermare, P. Hennequin, V. Berionni, P. H. Diamond, G. Dif-Pradalier, X. Garbet, P. Ghendrih, V. Grandgirard, C. J. McDevitt, P. Morel, Y. Sarazin, A. Storelli, C. Bourdelle, the Tore Supra Team

Scaling gysela code beyond 32K-cores on bluegene/Q

J. Bigot, V. Grandgirard, G. Latu, Ch. Passeron, F. Rozar, O. Thomine

Ion transport barriers triggered by plasma polarization in gyrokinetic simulations

A. Strugarek, Y. Sarazin, D. Zarzoso, J. Abiteboul, A. S. Brun, T. Cartier-Michaud, G. Dif-Pradalier, X. Garbet, Ph. Ghendrih, V. Grandgirard, G. Latu, Ch. Passeron, O. Thomine

Interplay between fast ions and turbulence in magnetic fusion plasmas

R. J. Dumont, D. Zarzoso, Y. Sarazin, X. Garbet, A. Strugarek, J. Abiteboul, T. Cartier-Michaud, G. Dif-Pradalier, Ph. Ghendrih, J-B. Girardo, V. Grandgirard, G. Latu, Ch. Passeron, O. Thomine

Gyrokinetic simulations of magnetic fusion plasmas

V. Grandgirard, Y. Sarazin

An asynchronous writing method for restart files in the GYSELA code in prevision of exascale systems

O. Thomine, J. Bigot, V. Grandgirard, G. Latu, Ch. Passeron, F. Rozar

Accuracy of unperturbed motion of particles in a gyrokinetic semi-Lagrangian code

G. Latu, V. Grandgirard, J. Abiteboul, M. Bergot, N. Crouseilles, X. Garbet, Ph. Ghendrih, M. Mehrenberger, Y. Sarazin, H. Sellama, E. Sonnendrücker, D. Zarzoso

Scalable Quasineutral solver for gyrokinetic simulation

G. Latu, V. Grandgirard, N. Crouseilles, G. Dif-Pradalier

Thermodynamics of neoclassical and turbulent transport

X. Garbet, J. Abiteboul, A. Strugarek, Y. Sarazin, G. Dif-Pradalier, Ph. Ghendrih, V. Grandgirard, C. Bourdelle, G. Latu, A. Smolyakov

Physics of intrinsic rotation in flux-driven ITG turbulence

S. Ku, J. Abiteboul, P. H. Diamond, G. Dif-Pradalier, J. M. Kwon, Y. Sarazin, T. S. Hahm, X. Garbet, C. S. Chang, G. Latu, E. S. Yoon, Ph. Ghendrih, S. Yi, A. Strugarek, W. Solomon, V. Grandgirard

Fully kinetic description of the linear excitation and nonlinear saturation of fast-ion-driven geodesic acoustic mode instability

D. Zarzoso, X. Garbet, Y. Sarazin, R. Dumont, V. Grandgirard

Some numerical aspects of the conservative PSM scheme in a 4D drift-kinetic code.

J-Ph. Braeunig, N. Crouseilles, V. Grandgirard, G. Latu, M. Mehrenberger, E. Sonnendrücker

Some parallel algorithms for the Quasineutrality solver of GYSELA

G. Latu, V. Grandgirard, N. Crouseilles, R. Belaouar, E. Sonnendrücker

Parallel bottleneck in the Quasineutrality solver embedded in GYSELA

G. Latu, N. Crouseilles, V. Grandgirard

Solving the Vlasov equation in complex geometries

J. Abiteboul, G. Latu, V. Grandgirard, A. Ratnani, Sonnendrücker, A. Strugarek

Neoclassical physics in full distribution function gyrokinetics

G. Dif-Pradalier, P. H. Diamond, V. Grandgirard, Y. Sarazin, J. Abiteboul, X. Garbet, Ph. Ghendrih, G. Latu, A. Strugarek, S. Ku, C. S. Chang

Conservation equations and calculation of mean flows in gyrokinetics

J. Abiteboul, X. Garbet, V. Grandgirard, S. J. Allfrey, Ph. Ghendrih, G. Latu, Y. Sarazin, A. Strugarek

Existence of Metastable Kinetic Modes

C. Nguyen, H. Lütjens, X. Garbet, V. Grandgirard, M. Lesur

On the validity of the local diffusive paradigm in turbulent plasma transport

G. Dif-Pradalier, P. H. Diamond, V. Grandgirard, Y. Sarazin, J. Abiteboul, X. Garbet, Ph. Ghendrih, A. Strugarek, S. Ku, C. S. Chang

Nonlinear modification of the stability of fast particle driven modes in tokamaks

C Nguyen, X Garbet, V Grandgirard, J Decker, Z Guimarães-Filho, M Lesur, H Lütjens, A Merle, R Sabot

Large scale dynamics in flux driven gyrokinetic turbulence

Y. Sarazin, V. Grandgirard, J. Abiteboul, S. Allfrey, X. Garbet, Ph. Ghendrih, G. Latu, A. Strugarek, G. Dif-Pradalier

Flux-driven gyrokinetic simulations of ion turbulent transport at low magnetic shear

Y. Sarazin, A. Strugarek, G. Dif-Pradalier, J. Abiteboul, S. Allfrey, X. Garbet, Ph. Ghendrih, V. Grandgirard, G. Latu

Entropy production rate in tokamaks with nonaxisymmetric magnetic fields

X. Garbet, J. Abiteboul, E. Trier, Ö. Gürcan, Y. Sarazin, A. Smolyakov, S. Allfrey, C. Bourdelle, C. Fenzi, V. Grandgirard, P. Ghendrih, P. Hennequin

Entropy production rate in tokamak plasmas with helical magnetic perturbations

X. Garbet, J. Abiteboul, Y. Sarazin, A. Smolyakov, S. Allfrey, V. Grandgirard, Ph. Ghendrih, G. Latu, A. Strugarek

Interplay between Gyrokinetic Turbulence, Flows, and Collisions: Perspectives on Transport and Poloidal Rotation

G. Dif-Pradalier, V. Grandgirard, Y. Sarazin, X. Garbet, Ph. Ghendrih

Role of Plasma Elongation on Turbulent Transport in Magnetically Confined Plasmas

P. Angelino, X. Garbet, L. Villard, A. Bottino, S. Jolliet, Ph. Ghendrih, V. Grandgirard, B. F. McMillan, Y. Sarazin, G. Dif-Pradalier, T. M. Tran

Neoclassical equilibrium in gyrokinetic simulations

X. Garbet, G. Dif-Pradalier, C. Nguyen, Y. Sarazin, V. Grandgirard, Ph. Ghendrih

Entropy production and collisionless fluid closure

Y. Sarazin, G. Dif-Pradalier, D. Zarzoso, X. Garbet, Ph. Ghendrih, V. Grandgirard

Turbulence spectra and transport barriers in gyrokinetic simulations

Y. Sarazin, V. Grandgirard, P. Angelino, A. Casati, G. Dif-Pradalier, X. Garbet, Ph. Ghendrih, Ö. Gürcan, P. Hennequin, R. Sabot

The role of plasma elongation on the linear damping of zonal flows

P. Angelino, X. Garbet, L. Villard, A. Bottino, S. Jolliet, Ph. Ghendrih, V. Grandgirard, B. F. McMillan, Y. Sarazin, G. Dif-Pradalier, T. M. Tran

On the influence of initial state on gyrokinetic simulations

G. Dif-Pradalier, V. Grandgirard, Y. Sarazin, X. Garbet, Ph. Ghendrih, P. Angelino

Intermittency in flux driven kinetic simulations of trapped ion turbulence

G. Darmet, Ph. Ghendrih, Y. Sarazin, X. Garbet, V. Grandgirard

Gyrokinetic simulations of neoclassical transport using a minimal collision operator

G. Dif-Pradalier, V. Grandgirard, Y. Sarazin, X. Garbet, Ph. Ghendrih, P. Angelino

Defining an equilibrium state in global full-f gyrokinetic models

G. Dif-Pradalier, V. Grandgirard, Y. Sarazin, X. Garbet, Ph. Ghendrih

Computing ITG turbulence with a full-f semi-Lagrangian code

V. Grandgirard, Y. Sarazin, X. Garbet, G. Dif-Pradalier, Ph. Ghendrih, N. Crouseilles, G. Latu, E. Sonnendrücker, N. Besse, P. Bertrand

Gyrokinetic Semi-Lagrangian Parallel Simulation using a Hybrid OpenMP/MPI programming

G. Latu, N. Crouseilles, V. Grandgirard, E. Sonnendrücker

Gyrokinetic modeling: A multi-water-bag approach

P. Morel, E. Gravier, N. Besse, R. Klein, A. Ghizzo, P. Bertrand, X. Garbet, P. Ghendrih, V. Grandgirard, Y. Sarazin

Global full-f gyrokinetic simulations of plasma turbulence

V. Grandgirard, Y. Sarazin, P. Angelino, A. Bottino, N. Crouseilles, G. Darmet, G. Dif-Pradalier, X. Garbet, Ph. Ghendrih, S. Jolliet, G. Latu, E. Sonnendrücker, L. Villard

Interplay between transport barriers and density gradient

Y. Sarazin, V. Grandgirard, G. Dif-Pradalier, X. Garbet, Ph. Ghendrih

Impact of large scale flows on turbulent transport

Y Sarazin, V Grandgirard, G Dif-Pradalier, E Fleurence, X Garbet, Ph Ghendrih, P Bertrand, N Besse, N Crouseilles, E Sonnendrücker, G Latu, E Violard

GYSELA, a full-f global gyrokinetic Semi-Lagrangian code for ITG turbulence simulations

V. Grandgirard, Y. Sarazin, X. Garbet, G. Dif-Pradalier, Ph. Ghendrih, N. Crouseilles, G. Latu, E. Sonnendrücker, N. Besse, P. Bertrand

A drift-kinetic Semi-Lagrangian 4D code for ion turbulence simulation

V. Grandgirard, M. Brunetti, P. Bertrand, N. Besse, X. Garbet, P. Ghendrih, G. Manfredi, Y. Sarazin, O. Sauter, E. Sonnendrücker, J. Vaclavik, L. Villard

Kinetic features of interchange turbulence

Y. Sarazin, V. Grandgirard, E. Fleurence, X. Garbet, Ph. Ghendrih, P. Bertrand, G. Depret

Theoretical understanding of turbulent transport in the SOL

Y. Sarazin, Ph. Ghendrih, G. Attuel, C. Clément, X. Garbet, V. Grandgirard, M. Ottaviani, S. Benkadda, P. Beyer, N. Bian, C. Figarella

Impact of large scale flows on turbulent transport

Y. Sarazin, Ph. Ghendrih, S. Benkadda, P. Beyer, G. Falchetto, C. Figarella, X. Garbet, V. Grandgirard