Reliable predictive simulation capability addressing confinement properties in magnetically confined fusion plasmas is critically-important for ITER, a 20 billion dollar international burning plasma device under construction in France. The complex study of kinetic turbulence, which can severely limit the energy confinement and impact the economic viability of fusion systems, requires simulations at extreme scale for such an unprecedented device size. Our newly optimized, global, ab initio particle-in-cell code solving the nonlinear equations underlying gyrokinetic theory achieves excellent performance with respect to "time to solution" at the full capacity of the IBM Blue Gene/Q on 786,432 cores of Mira at ALCF and recently of the 1,572,864...
An accurate description of turbulence up to the transport time scale is essential for predicting cor...
Global electrostatic ITG turbulence physics, together with background dynamics, has been simulated i...
Fusion performance in tokamaks depends on the core and edge regions as well as on their nonlinear fe...
Reliable predictive simulation capability addressing confinement properties in magnetically confined...
ABSTRACT Reliable predictive simulation capability addressing confinement properties in magnetically...
The goal of the extreme scale plasma turbulence studies described in this paper is to expedite the d...
The gyrokinetic toroidal code at Princeton (GTC-P) is a highly scalable and portable particle-in-cel...
Performance prediction for ITER is based upon the ubiquitous experimental observation that the plasm...
Electromagnetic turbulence is addressed in tokamak and stellarator plasmas with the global gyrokinet...
The Gyrokinetic Toroidal Code (GTC) is a global, three-dimensional particle-in-cell application deve...
Magnetic confinement fusion reactors suffer severely from heat and particle losses through turbulent...
One of the key challenges for plasma theory and simulation in view of ITER is to enhance the underst...
Multiscale simulation involving slow transport and fast turbulent timescales is one amongst three ke...
The gyrokinetic Particle-in-Cell (PIC) method is a critical computational tool enabling petascale fu...
Fusion power is one of few viable sustainable means of energy production. The tokamak is arguable th...
An accurate description of turbulence up to the transport time scale is essential for predicting cor...
Global electrostatic ITG turbulence physics, together with background dynamics, has been simulated i...
Fusion performance in tokamaks depends on the core and edge regions as well as on their nonlinear fe...
Reliable predictive simulation capability addressing confinement properties in magnetically confined...
ABSTRACT Reliable predictive simulation capability addressing confinement properties in magnetically...
The goal of the extreme scale plasma turbulence studies described in this paper is to expedite the d...
The gyrokinetic toroidal code at Princeton (GTC-P) is a highly scalable and portable particle-in-cel...
Performance prediction for ITER is based upon the ubiquitous experimental observation that the plasm...
Electromagnetic turbulence is addressed in tokamak and stellarator plasmas with the global gyrokinet...
The Gyrokinetic Toroidal Code (GTC) is a global, three-dimensional particle-in-cell application deve...
Magnetic confinement fusion reactors suffer severely from heat and particle losses through turbulent...
One of the key challenges for plasma theory and simulation in view of ITER is to enhance the underst...
Multiscale simulation involving slow transport and fast turbulent timescales is one amongst three ke...
The gyrokinetic Particle-in-Cell (PIC) method is a critical computational tool enabling petascale fu...
Fusion power is one of few viable sustainable means of energy production. The tokamak is arguable th...
An accurate description of turbulence up to the transport time scale is essential for predicting cor...
Global electrostatic ITG turbulence physics, together with background dynamics, has been simulated i...
Fusion performance in tokamaks depends on the core and edge regions as well as on their nonlinear fe...