@article{91b8669587674d83b3bb99622ce7b6d6,
title = "Cross-verification of the global gyrokinetic codes GENE and XGC",
abstract = "A detailed cross-verification between two global gyrokinetic codes, the core continuum code GENE and the edge particle-in-cell code XGC, for the linear and nonlinear simulations of ionerature-gradient modes is carried out. With the recent developments in the edge gyrokinetics, it may be feasible someday to describe the whole tokamak plasma on turbulence timescales using a coupled gyrokinetic simulation model. Before pursuing this, the core code (GENE) and the edge code (XGC) must be carefully benchmarked with each other. The present verification provides a solid basis for future code coupling research. Also included in the benchmarking is the global particle-in-cell code ORB5, to raise the confidence in the quality of the obtained results. An excellent agreement between all three codes is obtained. Furthermore, in order to facilitate a benchmark framework for other codes, we make a specific effort to provide all the relevant input parameters and precise details for each code.",
author = "G. Merlo and J. Dominski and A. Bhattacharjee and Chang, {C. S.} and F. Jenko and S. Ku and E. Lanti and S. Parker",
note = "Funding Information: Useful discussions with A. B. Navarro, T. Gorler, S. Janhunen, and B. McMillan are gratefully acknowledged. This work was supported by the U.S. Department of Energy under the Exascale Computing Project (17-SC-20-SC). Part of this work was supported by a grant from the Swiss National Supercomputing Center (CSCS) under project IDs s704 and s513. This research used the resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contracts Nos. DE-AC05-00OR22725 and DE-AC02-05CH11231. Funding Information: This work was supported by the U.S. Department of Energy under the Exascale Computing Project (17-SC-20-SC). Part of this work was supported by a grant from the Swiss National Supercomputing Center (CSCS) under project IDs s704 and s513. This research used the resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contracts Nos. DE-AC05-00OR22725 and DE-AC02-05CH11231. Publisher Copyright: {\textcopyright} 2018 Author(s).",
year = "2018",
month = jun,
day = "1",
doi = "10.1063/1.5036563",
language = "English (US)",
volume = "25",
journal = "Physics of Plasmas",
issn = "1070-664X",
publisher = "American Institute of Physics Publising LLC",
number = "6",
}