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      {no_affinity} values = none

  {kokkos} args = keyword value ...

    zero or more keyword/value pairs may be appended

    keywords = {neigh} or {neigh/qeq} or {newton} or {binsize} or {comm} or {comm/exchange} or {comm/forward} or {comm/reverse} or {gpu/direct}

    keywords = {neigh} or {neigh/qeq} or {neigh/thread} or {newton} or {binsize} or {comm} or {comm/exchange} or {comm/forward} or {comm/reverse} or {gpu/direct}

      {neigh} value = {full} or {half}

        full = full neighbor list

        half = half neighbor list built in thread-safe manner

      {neigh/qeq} value = {full} or {half}

        full = full neighbor list

        half = half neighbor list built in thread-safe manner

      {neigh/thread} value = {off} or {on}

        off = thread only over atoms

        on = thread over both atoms and neighbors

      {newton} = {off} or {on}

        off = set Newton pairwise and bonded flags off

        on = set Newton pairwise and bonded flags on

qeq/reax/kk"_fix_qeq_reax.html. If not explicitly set, the value of 

{neigh/qeq} will match {neigh}.

If the {neigh/thread} keyword is set to {off}, then the KOKKOS package 

threads only over atoms. However, for small systems, this may not expose 

enough parallelism to keep a GPU busy. When this keyword is set to {on}, 

the KOKKOS package threads over both atoms and neighbors of atoms. 

Using {neigh/thread} {on} may be slower for large systems, so this this 

option is turned on by default only when there are 16K atoms or less 

owned by an MPI rank. 

The {newton} keyword sets the Newton flags for pairwise and bonded 

interactions to {off} or {on}, the same as the "newton"_newton.html 

command allows. The default for GPUs is {off} because this will almost 

value, comm = device, gpu/direct = on. When LAMMPS can safely detect 

that GPU-direct is not available, the default value of gpu/direct 

becomes "off". For CPUs or Xeon Phis, the option defaults are neigh = 

half, neigh/qeq = half, newton = on, binsize = 0.0, and comm = no. These 

settings are made automatically by the required "-k on" "command-line 

switch"_Run_options.html. You can change them by using the package 

kokkos command in your input script or via the "-pk kokkos command-line 

switch"_Run_options.html.

half, neigh/qeq = half, newton = on, binsize = 0.0, and comm = no. The 

option neigh/thread = on when there are 16K atoms or less on an MPI 

rank, otherwise it is "off". These settings are made automatically by 

the required "-k on" "command-line switch"_Run_options.html. You can 

change them by using the package kokkos command in your input script or 

via the "-pk kokkos command-line switch"_Run_options.html.

For the OMP package, the default is Nthreads = 0 and the option

defaults are neigh = yes.  These settings are made automatically if