suffix.txt
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suffix.txt
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			"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c

			:link(lws,http://lammps.sandia.gov)
			:link(ld,Manual.html)
			:link(lc,Section_commands.html#comm)

			:line

			suffix command :h3

			[Syntax:]

			suffix style args :pre

			style = {off} or {on} or {gpu} or {intel} or {kk} or {omp} or {opt} or {hybrid}
			args = for hybrid style, default suffix to be used and alternative suffix :ul

			[Examples:]

			suffix off
			suffix on
			suffix gpu
			suffix intel
			suffix hybrid intel omp
			suffix kk :pre

			[Description:]

			This command allows you to use variants of various styles if they
			exist. In that respect it operates the same as the "-suffix
			command-line switch"_Section_start.html#start_6. It also has options
			to turn off or back on any suffix setting made via the command line.

			The specified style can be {gpu}, {intel}, {kk}, {omp}, {opt} or
			{hybrid}. These refer to optional packages that LAMMPS can be built
			with, as described in "this section of the
			manual"_Section_start.html#start_3. The "gpu" style corresponds to
			the GPU package, the "intel" style to the USER-INTEL package, the "kk"
			style to the KOKKOS package, the "omp" style to the USER-OMP package,
			and the "opt" style to the OPT package.

			These are the variants these packages provide:

			GPU = a handful of pair styles and the PPPM kspace_style, optimized to
			run on one or more GPUs or multicore CPU/GPU nodes :ulb,l

			USER-INTEL = a collection of pair styles and neighbor routines
			optimized to run in single, mixed, or double precision on CPUs and
			Intel(R) Xeon Phi(TM) coprocessors. :l

			KOKKOS = a collection of atom, pair, and fix styles optimized to run
			using the Kokkos library on various kinds of hardware, including GPUs
			via Cuda and many-core chips via OpenMP or threading. :l

			USER-OMP = a collection of pair, bond, angle, dihedral, improper,
			kspace, compute, and fix styles with support for OpenMP
			multi-threading :l

			OPT = a handful of pair styles, cache-optimized for faster CPU
			performance :l

			HYBRID = a combination of two packages can be specified (see below) :l
			:ule

			As an example, all of the packages provide a "pair_style
			lj/cut"_pair_lj.html variant, with style names lj/cut/opt, lj/cut/omp,
			lj/cut/gpu, lj/cut/intel, or lj/cut/kk. A variant styles
			can be specified explicitly in your input script, e.g. pair_style
			lj/cut/gpu. If the suffix command is used with the appropriate style,
			you do not need to modify your input script. The specified suffix
			(opt,omp,gpu,intel,kk) is automatically appended whenever your
			input script command creates a new "atom"_atom_style.html,
			"pair"_pair_style.html, "bond"_bond_style.html,
			"angle"_angle_style.html, "dihedral"_dihedral_style.html,
			"improper"_improper_style.html, "kspace"_kspace_style.html,
			"fix"_fix.html, "compute"_compute.html, or "run"_run_style.html style.
			If the variant version does not exist, the standard version is
			created.

			For "hybrid", two packages are specified. The first is used whenever
			available. If a style with the first suffix is not available, the style
			with the suffix for the second package will be used if available. For
			example, "hybrid intel omp" will use styles from the USER-INTEL package
			as a first choice and styles from the USER-OMP package as a second choice
			if no USER-INTEL variant is available.

			If the specified style is {off}, then any previously specified suffix
			is temporarily disabled, whether it was specified by a command-line
			switch or a previous suffix command. If the specified style is {on},
			a disabled suffix is turned back on. The use of these 2 commands lets
			your input script use a standard LAMMPS style (i.e. a non-accelerated
			variant), which can be useful for testing or benchmarking purposes.
			Of course this is also possible by not using any suffix commands, and
			explicitly appending or not appending the suffix to the relevant
			commands in your input script.

			NOTE: The default "run_style"_run_style.html verlet is invoked prior to
			reading the input script and is therefore not affected by a suffix command
			in the input script. The KOKKOS package requires "run_style verlet/kk",
			so when using the KOKKOS package it is necessary to either use the command
			line "-sf kk" command or add an explicit "run_style verlet" command to the
			input script.

			[Restrictions:] none

			[Related commands:]

			"Command-line switch -suffix"_Section_start.html#start_6

			[Default:] none

lammps/doc/src/suffix.txta92d79253734master

suffix.txtView Options

lammps/doc/src/suffix.txt
a92d79253734master

suffix.txt
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