forked from lijiext/lammps
70 lines
2.6 KiB
Plaintext
70 lines
2.6 KiB
Plaintext
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
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:link(lws,http://lammps.sandia.gov)
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:link(ld,Manual.html)
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:link(lc,Section_commands.html#comm)
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:line
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suffix command :h3
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[Syntax:]
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suffix style :pre
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style = {off} or {on} or {opt} or {gpu} or {cuda} :ul
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[Examples:]
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suffix off
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suffix on
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suffix gpu :pre
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[Description:]
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This command allows you to use variants of various styles if they
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exist. In that respect it operates the same as the "-suffix
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command-line switch"_Section_start.html#start_6. It also has options
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to turn off/on any suffix setting made via the command line.
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The specified style can be {opt} or {gpu} or {cuda}. These refer to
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optional packages that LAMMPS can be built with, as described in "this
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section of the manual"_Section_start.html#start_3. The "opt" style
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corrsponds to the OPT package, the "gpu" style to the GPU package, and
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the "cuda" style to the USER-CUDA package.
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These are the variants these packages provide:
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OPT = a handful of pair styles, cache-optimized for faster CPU performance
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GPU = a handful of pair styles and the PPPM kspace_style, optimized to run on one or more GPUs or multicore CPU/GPU nodes
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USER-CUDA = a collection of atom, pair, fix, compute, and intergrate styles, optimized to run on one or more NVIDIA GPUs :ul
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As an example, all of the packages provide a "pair_style
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lj/cut"_pair_lj.html variant, with style names lj/cut/opt or
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lj/cut/gpu or lj/cut/cuda. A variant styles can be specified
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explicitly in your input script, e.g. pair_style lj/cut/gpu. If the
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suffix command is used with the appropriate style, you do not need to
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modify your input script. The specified suffix (opt,gpu,cuda) is
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automatically appended whenever your input script command creates a
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new "atom"_atom_style.html, "pair"_pair_style.html, "fix"_fix.html,
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"compute"_compute.html, or "run"_run_style.html style. If the variant
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version does not exist, the standard version is created.
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If the specified style is {off}, then any previously specified suffix
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is temporarily disabled, whether it was specified by a command-line
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switch or a previous suffix command. If the specified style is {on},
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a disabled suffix is turned back on. The use of these 2 commands lets
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your input script use a standard LAMMPS style (i.e. a non-accelerated
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variant), which can be useful for testing or benchmarking purposes.
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Of course this is also possible by not using any suffix commands, and
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explictly appending or not appending the suffix to the relevant
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commands in your input script.
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[Restrictions:] none
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[Related commands:]
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"Command-line switch -suffix"_Section_start.html#start_6
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[Default:] none
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