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  • Installing \(\texttt{Gkeyll}\)
  • \(\texttt{Gkeyll}\) Quick Start Guide
  • Postgkyl
    • Installation
    • Examples
      • Inspect a field and extract a lineout
      • Compare profiles across calculations
      • Recover pressure from conserved moments
      • Inspect a gyrokinetic distribution
      • Load derived gyrokinetic quantities
      • Plot in physical R–Z coordinates
      • Measure exponential growth
      • Choose the arithmetic representation
      • Load many files, collect, and animate
      • Plotly: 2-D height surfaces and 3-D isosurfaces
      • PyVista: contours and translucent volumes
      • Access grids and values directly
      • Plot a multiblock dataset
      • Command-line workflows
      • Python and CLI figure comparisons
    • Python API
      • postgkyl.load
      • postgkyl.plot
      • postgkyl.group_blocks
      • postgkyl.info
      • postgkyl.print
      • postgkyl.integrate
      • postgkyl.interpolate
      • postgkyl.local_poly
      • postgkyl.select
      • postgkyl.average
      • postgkyl.eval_at_coord_proj
      • postgkyl.fft
      • postgkyl.magsq
      • postgkyl.mask
      • postgkyl.grid
      • postgkyl.val2coord
      • postgkyl.extract_input
      • postgkyl.fit
      • postgkyl.growth
      • postgkyl.differentiate
      • postgkyl.map
      • postgkyl.represent
      • postgkyl.apply
      • postgkyl.map_to_rz
      • postgkyl.resolve_rz_projection
      • postgkyl.resolve_geometry
      • postgkyl.extract_flux_surface
      • postgkyl.resolve_flux_surface_grid
      • postgkyl.save
      • postgkyl.collect
      • postgkyl.evaluate
      • postgkyl.relchange
      • postgkyl.animate
      • postgkyl.plotly_animate
      • postgkyl.sort
      • postgkyl.available_evaluate_operators
      • postgkyl.plotly
      • postgkyl.pyvista
      • postgkyl.version_report
      • postgkyl.gk.load_distf
      • postgkyl.gk.resolve_frames
      • postgkyl.gk.available_quantities
      • postgkyl.gk.load_quantity
      • postgkyl.gk.fetch_beta_from_bmag_press
      • postgkyl.gk.fetch_diamag_vel
      • postgkyl.gk.fetch_ExB_vel
      • postgkyl.gk.fetch_gradB_vel
      • postgkyl.gk.fetch_M1_from_H
      • postgkyl.gk.fetch_press_from_BiMax
      • postgkyl.gk.fetch_press_from_Max
      • postgkyl.gk.fetch_press_p
      • postgkyl.gk.fetch_Tpar_from_BiMax
      • postgkyl.gk.fetch_Tpar_from_M0_M1_M2par
      • postgkyl.gk.fetch_temp_from_Max
      • postgkyl.gk.fetch_temp_from_Tpar_Tperp
      • postgkyl.gk.fetch_Tperp_from_BiMax
      • postgkyl.gk.fetch_Tperp_from_M0_M2perp
      • postgkyl.gk.energy_balance_error
      • postgkyl.gk.energy_balance
      • postgkyl.gk.particle_balance
      • postgkyl.gk.particle_balance_error
      • postgkyl.gk.nodes
      • postgkyl.gk.multib_tag
      • postgkyl.gk.nodes_to_RZ
      • postgkyl.diagnostics.vm.kinetic.materialize_point_values
      • postgkyl.diagnostics.vm.kinetic.transform_frame
      • postgkyl.diagnostics.vm.trajectory.trajectory
      • postgkyl.diagnostics.mom.enstrophy.enstrophy
      • postgkyl.diagnostics.mom.five_moment.binary
      • postgkyl.diagnostics.mom.five_moment.density
      • postgkyl.diagnostics.mom.five_moment.ke
      • postgkyl.diagnostics.mom.five_moment.mach
      • postgkyl.diagnostics.mom.five_moment.pressure
      • postgkyl.diagnostics.mom.five_moment.sound
      • postgkyl.diagnostics.mom.five_moment.temp
      • postgkyl.diagnostics.mom.five_moment.vel
      • postgkyl.diagnostics.mom.five_moment.velocity
      • postgkyl.diagnostics.mom.five_moment.xvel
      • postgkyl.diagnostics.mom.five_moment.yvel
      • postgkyl.diagnostics.mom.five_moment.zvel
      • postgkyl.diagnostics.mom.ke_dke.ke_dke
      • postgkyl.diagnostics.mom.mhd.bi
      • postgkyl.diagnostics.mom.mhd.bx
      • postgkyl.diagnostics.mom.mhd.by
      • postgkyl.diagnostics.mom.mhd.bz
      • postgkyl.diagnostics.mom.mhd.mach
      • postgkyl.diagnostics.mom.mhd.mag_pressure
      • postgkyl.diagnostics.mom.mhd.pressure
      • postgkyl.diagnostics.mom.mhd.sound
      • postgkyl.diagnostics.mom.mhd.temp
      • postgkyl.diagnostics.mom.multispecies.accumulate_current
      • postgkyl.diagnostics.mom.multispecies.energetics
      • postgkyl.diagnostics.mom.plasma.beta
      • postgkyl.diagnostics.mom.plasma.d
      • postgkyl.diagnostics.mom.plasma.lambdaD
      • postgkyl.diagnostics.mom.plasma.magB
      • postgkyl.diagnostics.mom.plasma.omegaC
      • postgkyl.diagnostics.mom.plasma.omegaP
      • postgkyl.diagnostics.mom.plasma.rho
      • postgkyl.diagnostics.mom.plasma.vA
      • postgkyl.diagnostics.mom.plasma.vt
      • postgkyl.diagnostics.mom.rotations.parrotate
      • postgkyl.diagnostics.mom.rotations.perprotate
      • postgkyl.diagnostics.mom.rotations.bparrotate
      • postgkyl.diagnostics.mom.rotations.bperprotate
      • postgkyl.diagnostics.mom.ten_moment.agyro
      • postgkyl.diagnostics.mom.ten_moment.ke
      • postgkyl.diagnostics.mom.ten_moment.mach
      • postgkyl.diagnostics.mom.ten_moment.mom_agyro
      • postgkyl.diagnostics.mom.ten_moment.p_par
      • postgkyl.diagnostics.mom.ten_moment.p_perp
      • postgkyl.diagnostics.mom.ten_moment.pressure
      • postgkyl.diagnostics.mom.ten_moment.pressure_tensor
      • postgkyl.diagnostics.mom.ten_moment.pxx
      • postgkyl.diagnostics.mom.ten_moment.pxy
      • postgkyl.diagnostics.mom.ten_moment.pxz
      • postgkyl.diagnostics.mom.ten_moment.pyy
      • postgkyl.diagnostics.mom.ten_moment.pyz
      • postgkyl.diagnostics.mom.ten_moment.pzz
      • postgkyl.diagnostics.mom.ten_moment.sound
      • postgkyl.diagnostics.mom.ten_moment.temp
      • postgkyl.diagnostics.pkpm.laguerre_compose
      • postgkyl.diagnostics.pkpm.load_pkpm
      • postgkyl.diagnostics.discovery.available_frames
      • postgkyl.diagnostics.discovery.find_output_stems
      • GData
        • postgkyl.GData.backend
        • postgkyl.GData.bounds
        • postgkyl.GData.clone
        • postgkyl.GData.div
        • postgkyl.GData.file_name
        • postgkyl.GData.get_bounds
        • postgkyl.GData.get_grid
        • postgkyl.GData.get_grid_type
        • postgkyl.GData.get_label
        • postgkyl.GData.get_num_cells
        • postgkyl.GData.get_num_comps
        • postgkyl.GData.get_num_dims
        • postgkyl.GData.get_tag
        • postgkyl.GData.get_values
        • postgkyl.GData.grid
        • postgkyl.GData.info
        • postgkyl.GData.is_interpolated
        • postgkyl.GData.label
        • postgkyl.GData.load
        • postgkyl.GData.mul
        • postgkyl.GData.native
        • postgkyl.GData.num_cells
        • postgkyl.GData.num_comps
        • postgkyl.GData.num_dims
        • postgkyl.GData.output_name
        • postgkyl.GData.push
        • postgkyl.GData.set_grid
        • postgkyl.GData.set_label
        • postgkyl.GData.set_tag
        • postgkyl.GData.set_values
        • postgkyl.GData.tag
        • postgkyl.GData.val2coord
        • postgkyl.GData.values
      • GDataGroup
        • postgkyl.GDataGroup.animate
        • postgkyl.GDataGroup.collect
        • postgkyl.GDataGroup.datasets
        • postgkyl.GDataGroup.evaluate
        • postgkyl.GDataGroup.info
        • postgkyl.GDataGroup.load
        • postgkyl.GDataGroup.plotly_animate
        • postgkyl.GDataGroup.sort
        • postgkyl.GDataGroup.with
    • Command reference
      • pgkyl average
      • pgkyl collect
      • pgkyl differentiate
      • pgkyl eval_at_coord_proj
      • pgkyl evaluate
      • pgkyl extract_flux_surface
      • pgkyl fft
      • pgkyl fit
      • pgkyl grid
      • pgkyl growth
      • pgkyl integrate
      • pgkyl interpolate
      • pgkyl local_poly
      • pgkyl magsq
      • pgkyl map
      • pgkyl map_to_rz
      • pgkyl mask
      • pgkyl relchange
      • pgkyl represent
      • pgkyl select
      • pgkyl sort
      • pgkyl val2coord
      • pgkyl discovery_available_frames
      • pgkyl discovery_find_output_stems
      • pgkyl gk_energy_balance
      • pgkyl gk_load_distf
      • pgkyl gk_load_quantity
      • pgkyl gk_nodes
      • pgkyl gk_particle_balance
      • pgkyl mom_enstrophy_enstrophy
      • pgkyl mom_five_moment_density
      • pgkyl mom_five_moment_ke
      • pgkyl mom_five_moment_mach
      • pgkyl mom_five_moment_pressure
      • pgkyl mom_five_moment_sound
      • pgkyl mom_five_moment_temp
      • pgkyl mom_five_moment_vel
      • pgkyl mom_five_moment_velocity
      • pgkyl mom_five_moment_xvel
      • pgkyl mom_five_moment_yvel
      • pgkyl mom_five_moment_zvel
      • pgkyl mom_ke_dke_ke_dke
      • pgkyl mom_mhd_bi
      • pgkyl mom_mhd_bx
      • pgkyl mom_mhd_by
      • pgkyl mom_mhd_bz
      • pgkyl mom_mhd_density
      • pgkyl mom_mhd_mach
      • pgkyl mom_mhd_mag_pressure
      • pgkyl mom_mhd_pressure
      • pgkyl mom_mhd_sound
      • pgkyl mom_mhd_temp
      • pgkyl mom_mhd_vel
      • pgkyl mom_mhd_xvel
      • pgkyl mom_mhd_yvel
      • pgkyl mom_mhd_zvel
      • pgkyl mom_multispecies_accumulate_current
      • pgkyl mom_multispecies_energetics
      • pgkyl mom_plasma_beta
      • pgkyl mom_plasma_d
      • pgkyl mom_plasma_lambdaD
      • pgkyl mom_plasma_magB
      • pgkyl mom_plasma_omegaC
      • pgkyl mom_plasma_omegaP
      • pgkyl mom_plasma_rho
      • pgkyl mom_plasma_vA
      • pgkyl mom_plasma_vt
      • pgkyl mom_rotations_bparrotate
      • pgkyl mom_rotations_bperprotate
      • pgkyl mom_rotations_parrotate
      • pgkyl mom_rotations_perprotate
      • pgkyl mom_ten_moment_agyro
      • pgkyl mom_ten_moment_density
      • pgkyl mom_ten_moment_ke
      • pgkyl mom_ten_moment_mach
      • pgkyl mom_ten_moment_mom_agyro
      • pgkyl mom_ten_moment_p_par
      • pgkyl mom_ten_moment_p_perp
      • pgkyl mom_ten_moment_pressure
      • pgkyl mom_ten_moment_pressure_tensor
      • pgkyl mom_ten_moment_pxx
      • pgkyl mom_ten_moment_pxy
      • pgkyl mom_ten_moment_pxz
      • pgkyl mom_ten_moment_pyy
      • pgkyl mom_ten_moment_pyz
      • pgkyl mom_ten_moment_pzz
      • pgkyl mom_ten_moment_sound
      • pgkyl mom_ten_moment_temp
      • pgkyl mom_ten_moment_vel
      • pgkyl mom_ten_moment_xvel
      • pgkyl mom_ten_moment_yvel
      • pgkyl mom_ten_moment_zvel
      • pgkyl pkpm_laguerre_compose
      • pgkyl pkpm_load_pkpm
      • pgkyl vm_kinetic_transform_frame
      • pgkyl vm_trajectory_trajectory
      • pgkyl animate
      • pgkyl plot
      • pgkyl plotly
      • pgkyl plotly_animate
      • pgkyl pyvista
      • pgkyl extract_input
      • pgkyl info
      • pgkyl load
      • pgkyl print
      • pgkyl save
    • Working with data
    • Migrating existing workflows
    • Gyrokinetic quantities
    • Developing Postgkyl
    • Troubleshooting and documentation development
    • Documentation source
  • Publications and theses
  • Presentations
  • Developer notes
    • On Developing and Contributing Code to Gkeyll Ecosystem
    • Suggested templates for issues and pull requests to Gkeyll
    • On use of the Maxima CAS
    • Modal basis functions
    • The recovery Maxima code
    • Strong-Stability preserving Runge-Kutta time-steppers
    • Normalized units for the Vlasov-Maxwell system
    • From normalized to physical units in Vlasov and multi-fluid simulations
    • Collision models in Gkeyll
    • The eigensystem of the Maxwell equations with extension to perfectly hyperbolic Maxwell equations
    • The eigensystem of the Euler equations
    • The eigensystem of the ten-moment equations
    • Handling two-fluid five-moment and ten-moment source terms
    • Time step calculation in Gkeyll
    • On Utlilizing The Built-In Debugger For Lua
    • The equations of general relativistic hydrodynamics (GRHD) in Gkeyll
    • The eigensystem of the general relativistic hydrodynamics (GRHD) equations
    • Black hole spacetimes in Gkeyll
    • Relativistic primitive variable reconstruction in Gkeyll
    • Tokamak Topology
    • How to run Valgrind on Gkeyll
    • Guidelines on adding a new regression test
  • Required development processes
    • Gkeyll Design and Code Review Process
    • Gkeyll Design and Code Review Process: Condensed Version
    • Design and Code Review Personnel
  • License
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Time step calculation in Gkeyll¶

See this technical note

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On Utlilizing The Built-In Debugger For Lua
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Handling two-fluid five-moment and ten-moment source terms
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