From ca9b0f7d5b4529c38be55a9df992e92c9c67c5cf Mon Sep 17 00:00:00 2001 From: sjplimp <sjplimp@f3b2605a-c512-4ea7-a41b-209d697bcdaa> Date: Tue, 2 Oct 2007 21:55:02 +0000 Subject: [PATCH] git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@915 f3b2605a-c512-4ea7-a41b-209d697bcdaa --- doc/Section_commands.html | 53 ++++++++---- doc/Section_commands.txt | 28 +++++-- doc/Section_start.html | 105 ++++++++++++++++++----- doc/Section_start.txt | 105 ++++++++++++++++++----- doc/fix.html | 1 + doc/fix.txt | 1 + doc/kspace_style.html | 12 +-- doc/kspace_style.txt | 12 +-- doc/pair_coeff.html | 13 +++ doc/pair_coeff.txt | 12 +++ doc/pair_hybrid.html | 169 +++++++++++++++++++++++++------------ doc/pair_hybrid.txt | 170 ++++++++++++++++++++++++++------------ doc/pair_lj.html | 2 +- doc/pair_lj.txt | 2 +- doc/pair_style.html | 29 +++++-- doc/pair_style.txt | 28 +++++-- 16 files changed, 542 insertions(+), 200 deletions(-) diff --git a/doc/Section_commands.html b/doc/Section_commands.html index 8ee34eb1aa..64a1b05bd8 100644 --- a/doc/Section_commands.html +++ b/doc/Section_commands.html @@ -313,9 +313,8 @@ in the command's documentation. <HR> -<P>Fix commands. See the <A HREF = "fix.html">fix</A> command for one-line -descriptions of each style or click on the style itself for a full -description: +<P>Fix styles. See the <A HREF = "fix.html">fix</A> command for one-line descriptions +of each style or click on the style itself for a full description: </P> <DIV ALIGN=center><TABLE BORDER=1 > <TR ALIGN="center"><TD ><A HREF = "fix_addforce.html">addforce</A></TD><TD ><A HREF = "fix_aveforce.html">aveforce</A></TD><TD ><A HREF = "fix_ave_atom.html">ave/atom</A></TD><TD ><A HREF = "fix_ave_spatial.html">ave/spatial</A></TD><TD ><A HREF = "fix_ave_time.html">ave/time</A></TD><TD ><A HREF = "fix_com.html">com</A></TD><TD ><A HREF = "fix_deform.html">deform</A></TD><TD ><A HREF = "fix_deposit.html">deposit</A></TD></TR> @@ -329,17 +328,24 @@ description: <HR> -<P>Compute commands. See the <A HREF = "compute.html">compute</A> command for one-line +<P>Compute styles. See the <A HREF = "compute.html">compute</A> command for one-line descriptions of each style or click on the style itself for a full description: </P> <DIV ALIGN=center><TABLE BORDER=1 > <TR ALIGN="center"><TD ><A HREF = "compute_attribute_atom.html">attribute/atom</A></TD><TD ><A HREF = "compute_centro_atom.html">centro/atom</A></TD><TD ><A HREF = "compute_coord_atom.html">coord/atom</A></TD><TD ><A HREF = "compute_ebond_atom.html">ebond/atom</A></TD><TD ><A HREF = "compute_epair_atom.html">epair/atom</A></TD><TD ><A HREF = "compute_ke_atom.html">ke/atom</A></TD></TR> <TR ALIGN="center"><TD ><A HREF = "compute_pressure.html">pressure</A></TD><TD ><A HREF = "compute_rotate_dipole.html">rotate/dipole</A></TD><TD ><A HREF = "compute_rotate_gran.html">rotate/gran</A></TD><TD ><A HREF = "compute_stress_atom.html">stress/atom</A></TD><TD ><A HREF = "compute_sum_atom.html">sum/atom</A></TD><TD ><A HREF = "compute_temp.html">temp</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "compute_temp_deform.html">temp/deform</A></TD><TD ><A HREF = "compute_temp_asphere.html">temp/asphere</A></TD><TD ><A HREF = "compute_temp_dipole.html">temp/dipole</A></TD><TD ><A HREF = "compute_temp_partial.html">temp/partial</A></TD><TD ><A HREF = "compute_temp_ramp.html">temp/ramp</A></TD><TD ><A HREF = "compute_temp_region.html">temp/region</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "compute_temp_asphere.html">temp/asphere</A></TD><TD ><A HREF = "compute_temp_deform.html">temp/deform</A></TD><TD ><A HREF = "compute_temp_dipole.html">temp/dipole</A></TD><TD ><A HREF = "compute_temp_partial.html">temp/partial</A></TD><TD ><A HREF = "compute_temp_ramp.html">temp/ramp</A></TD><TD ><A HREF = "compute_temp_region.html">temp/region</A></TD></TR> <TR ALIGN="center"><TD ><A HREF = "compute_variable.html">variable</A></TD><TD ><A HREF = "compute_variable_atom.html">variable/atom</A> </TD></TR></TABLE></DIV> +<P>These are compute styles contributed by users, which can be used if +<A HREF = "Section_start.html#2_3">LAMMPS is built with the appropriate package</A>. +</P> +<DIV ALIGN=center><TABLE BORDER=1 > +<TR ALIGN="center"><TD ><A HREF = "compute_ackland.html">ackland</A> +</TD></TR></TABLE></DIV> + <HR> <P>Pair_style potentials. See the <A HREF = "pair_style.html">pair_style</A> command @@ -347,17 +353,25 @@ for an overview of pair potentials. Click on the style itself for a full description: </P> <DIV ALIGN=center><TABLE BORDER=1 > -<TR ALIGN="center"><TD ><A HREF = "pair_none.html">none</A></TD><TD ><A HREF = "pair_hybrid.html">hybrid</A></TD><TD ><A HREF = "pair_airebo.html">airebo</A></TD><TD ><A HREF = "pair_buck.html">buck</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_buck.html">buck/coul/cut</A></TD><TD ><A HREF = "pair_buck.html">buck/coul/long</A></TD><TD ><A HREF = "pair_colloid.html">colloid</A></TD><TD ><A HREF = "pair_dipole/cut.html">dipole/cut</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_dpd.html">dpd</A></TD><TD ><A HREF = "pair_eam.html">eam</A></TD><TD ><A HREF = "pair_eam.html">eam/opt</A></TD><TD ><A HREF = "pair_eam.html">eam/alloy</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_eam.html">eam/alloy/opt</A></TD><TD ><A HREF = "pair_eam.html">eam/fs</A></TD><TD ><A HREF = "pair_eam.html">eam/fs/opt</A></TD><TD ><A HREF = "pair_gayberne.html">gayberne</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_gran.html">gran/hertzian</A></TD><TD ><A HREF = "pair_gran.html">gran/history</A></TD><TD ><A HREF = "pair_gran.html">gran/no_history</A></TD><TD ><A HREF = "pair_charmm.html">lj/charmm/coul/charmm</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_charmm.html">lj/charmm/coul/charmm/implicit</A></TD><TD ><A HREF = "pair_charmm.html">lj/charmm/coul/long</A></TD><TD ><A HREF = "pair_charmm.html">lj/charmm/coul/long/opt</A></TD><TD ><A HREF = "pair_class2.html">lj/class2</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_class2.html">lj/class2/coul/cut</A></TD><TD ><A HREF = "pair_class2.html">lj/class2/coul/long</A></TD><TD ><A HREF = "pair_lj.html">lj/cut</A></TD><TD ><A HREF = "pair_lj.html">lj/cut/opt</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_lj.html">lj/cut/coul/cut</A></TD><TD ><A HREF = "pair_lj.html">lj/cut/coul/debye</A></TD><TD ><A HREF = "pair_lj.html">lj/cut/coul/long</A></TD><TD ><A HREF = "pair_lj.html">lj/cut/coul/long/tip4p</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_lj_expand.html">lj/expand</A></TD><TD ><A HREF = "pair_lj_smooth.html">lj/smooth</A></TD><TD ><A HREF = "pair_meam.html">meam</A></TD><TD ><A HREF = "pair_morse.html">morse</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_morse.html">morse/opt</A></TD><TD ><A HREF = "pair_soft.html">soft</A></TD><TD ><A HREF = "pair_sw.html">sw</A></TD><TD ><A HREF = "pair_table.html">table</A></TD></TR> -<TR ALIGN="center"><TD ><A HREF = "pair_tersoff.html">tersoff</A></TD><TD ><A HREF = "pair_yukawa.html">yukawa</A> +<TR ALIGN="center"><TD ><A HREF = "pair_none.html">none</A></TD><TD ><A HREF = "pair_hybrid.html">hybrid</A></TD><TD ><A HREF = "pair_hybrid.html">hybrid/overlay</A></TD><TD ><A HREF = "pair_airebo.html">airebo</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_buck.html">buck</A></TD><TD ><A HREF = "pair_buck.html">buck/coul/cut</A></TD><TD ><A HREF = "pair_buck.html">buck/coul/long</A></TD><TD ><A HREF = "pair_colloid.html">colloid</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_coul.html">coul/cut</A></TD><TD ><A HREF = "pair_long.html">coul/long</A></TD><TD ><A HREF = "pair_dipole/cut.html">dipole/cut</A></TD><TD ><A HREF = "pair_dpd.html">dpd</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_eam.html">eam</A></TD><TD ><A HREF = "pair_eam.html">eam/opt</A></TD><TD ><A HREF = "pair_eam.html">eam/alloy</A></TD><TD ><A HREF = "pair_eam.html">eam/alloy/opt</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_eam.html">eam/fs</A></TD><TD ><A HREF = "pair_eam.html">eam/fs/opt</A></TD><TD ><A HREF = "pair_gayberne.html">gayberne</A></TD><TD ><A HREF = "pair_gran.html">gran/hertzian</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_gran.html">gran/history</A></TD><TD ><A HREF = "pair_gran.html">gran/no_history</A></TD><TD ><A HREF = "pair_charmm.html">lj/charmm/coul/charmm</A></TD><TD ><A HREF = "pair_charmm.html">lj/charmm/coul/charmm/implicit</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_charmm.html">lj/charmm/coul/long</A></TD><TD ><A HREF = "pair_charmm.html">lj/charmm/coul/long/opt</A></TD><TD ><A HREF = "pair_class2.html">lj/class2</A></TD><TD ><A HREF = "pair_class2.html">lj/class2/coul/cut</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_class2.html">lj/class2/coul/long</A></TD><TD ><A HREF = "pair_lj.html">lj/cut</A></TD><TD ><A HREF = "pair_lj.html">lj/cut/opt</A></TD><TD ><A HREF = "pair_lj.html">lj/cut/coul/cut</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_lj.html">lj/cut/coul/debye</A></TD><TD ><A HREF = "pair_lj.html">lj/cut/coul/long</A></TD><TD ><A HREF = "pair_lj.html">lj/cut/coul/long/tip4p</A></TD><TD ><A HREF = "pair_lj_expand.html">lj/expand</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_lj_smooth.html">lj/smooth</A></TD><TD ><A HREF = "pair_meam.html">meam</A></TD><TD ><A HREF = "pair_morse.html">morse</A></TD><TD ><A HREF = "pair_morse.html">morse/opt</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_soft.html">soft</A></TD><TD ><A HREF = "pair_sw.html">sw</A></TD><TD ><A HREF = "pair_table.html">table</A></TD><TD ><A HREF = "pair_tersoff.html">tersoff</A></TD></TR> +<TR ALIGN="center"><TD ><A HREF = "pair_yukawa.html">yukawa</A> +</TD></TR></TABLE></DIV> + +<P>These are pair styles contributed by users, which can be used if +<A HREF = "Section_start.html#2_3">LAMMPS is built with the appropriate package</A>. +</P> +<DIV ALIGN=center><TABLE BORDER=1 > +<TR ALIGN="center"><TD ><A HREF = "pair_buck_coul.html">buck/coul</A></TD><TD ><A HREF = "pair_lj_coul.html">lj/coul</A> </TD></TR></TABLE></DIV> <HR> @@ -417,4 +431,11 @@ description: <TR ALIGN="center"><TD WIDTH="100"><A HREF = "kspace_style.html">ewald</A></TD><TD WIDTH="100"><A HREF = "kspace_style.html">pppm</A></TD><TD WIDTH="100"><A HREF = "kspace_style.html">pppm/tip4p</A> </TD></TR></TABLE></DIV> +<P>These are Kspace solvers contributed by users, which can be used if +<A HREF = "Section_start.html#2_3">LAMMPS is built with the appropriate package</A>. +</P> +<DIV ALIGN=center><TABLE BORDER=1 > +<TR ALIGN="center"><TD WIDTH="100"><A HREF = "ewald_n.html">ewald/n</A> +</TD></TR></TABLE></DIV> + </HTML> diff --git a/doc/Section_commands.txt b/doc/Section_commands.txt index 2a6f706ea3..2e75cbbf2e 100644 --- a/doc/Section_commands.txt +++ b/doc/Section_commands.txt @@ -372,9 +372,8 @@ in the command's documentation. :line -Fix commands. See the "fix"_fix.html command for one-line -descriptions of each style or click on the style itself for a full -description: +Fix styles. See the "fix"_fix.html command for one-line descriptions +of each style or click on the style itself for a full description: "addforce"_fix_addforce.html, "aveforce"_fix_aveforce.html, @@ -433,7 +432,7 @@ description: :line -Compute commands. See the "compute"_compute.html command for one-line +Compute styles. See the "compute"_compute.html command for one-line descriptions of each style or click on the style itself for a full description: @@ -449,8 +448,8 @@ description: "stress/atom"_compute_stress_atom.html, "sum/atom"_compute_sum_atom.html, "temp"_compute_temp.html, -"temp/deform"_compute_temp_deform.html, "temp/asphere"_compute_temp_asphere.html, +"temp/deform"_compute_temp_deform.html, "temp/dipole"_compute_temp_dipole.html, "temp/partial"_compute_temp_partial.html, "temp/ramp"_compute_temp_ramp.html, @@ -458,6 +457,11 @@ description: "variable"_compute_variable.html, "variable/atom"_compute_variable_atom.html :tb(c=6,ea=c) +These are compute styles contributed by users, which can be used if +"LAMMPS is built with the appropriate package"_Section_start.html#2_3. + +"ackland"_compute_ackland.html :tb(c=6,ea=c) + :line Pair_style potentials. See the "pair_style"_pair_style.html command @@ -466,11 +470,14 @@ full description: "none"_pair_none.html, "hybrid"_pair_hybrid.html, +"hybrid/overlay"_pair_hybrid.html, "airebo"_pair_airebo.html, "buck"_pair_buck.html, "buck/coul/cut"_pair_buck.html, "buck/coul/long"_pair_buck.html, "colloid"_pair_colloid.html, +"coul/cut"_pair_coul.html, +"coul/long"_pair_long.html, "dipole/cut"_pair_dipole/cut.html, "dpd"_pair_dpd.html, "eam"_pair_eam.html, @@ -507,6 +514,12 @@ full description: "tersoff"_pair_tersoff.html, "yukawa"_pair_yukawa.html :tb(c=4,ea=c) +These are pair styles contributed by users, which can be used if +"LAMMPS is built with the appropriate package"_Section_start.html#2_3. + +"buck/coul"_pair_buck_coul.html, +"lj/coul"_pair_lj_coul.html :tb(c=4,ea=c) + :line Bond_style potentials. See the "bond_style"_bond_style.html command @@ -575,3 +588,8 @@ description: "ewald"_kspace_style.html, "pppm"_kspace_style.html, "pppm/tip4p"_kspace_style.html :tb(c=4,ea=c,w=100) + +These are Kspace solvers contributed by users, which can be used if +"LAMMPS is built with the appropriate package"_Section_start.html#2_3. + +"ewald/n"_ewald_n.html :tb(c=4,ea=c,w=100) diff --git a/doc/Section_start.html b/doc/Section_start.html index 19c62b0a4b..ef237a45bd 100644 --- a/doc/Section_start.html +++ b/doc/Section_start.html @@ -264,14 +264,18 @@ build it. In the src/MAKE/Windows directory are some notes from users on how they built LAMMPS under Windows, so you can look at their instructions for tips. Good luck - we can't help you on this one. </P> +<HR> + <H4><A NAME = "2_3"></A>2.3 Making LAMMPS with optional packages </H4> <P>The source code for LAMMPS is structured as a large set of core files -that are always used plus additional packages, which are groups of -files that enable a specific set of features. For example, force -fields for molecular systems or granular systems are in packages. You -can see the list of packages by typing "make package". The current -list of packages is as follows: +that are always used plus additional optional packages, which are +groups of files that enable a specific set of features. For example, +force fields for molecular systems or granular systems are in +packages. You can see the list of both standard and user-contributed +packages by typing "make package". +</P> +<P>The current list of standard packages is as follows: </P> <DIV ALIGN=center><TABLE BORDER=1 > <TR><TD >asphere </TD><TD > aspherical particles and force fields</TD></TR> @@ -289,27 +293,86 @@ list of packages is as follows: <TR><TD >xtc </TD><TD > dump atom snapshots in XTC format </TD></TR></TABLE></DIV> +<P>There are also user-contributed packages which may be as simple as a +single additional file (class) or many files grouped together which +add a specific functionality to the code. The difference between a +<I>standard</I> package versus a <I>user</I> package is as follows. +</P> +<P>Standard packages are supported by the LAMMPS developers and are +written in a syntax and style consistent with the rest of LAMMPS. +This means we will answer questions about them, debug and fix them if +necessary, and keep them compatible with future changes to LAMMPS. +</P> +<P>User packages don't necessarily meet these requirements. If you have +problems using a feature provided in a user package, you will likely +need to contact the contributor directly to get help. +</P> +<P>We encourage users to submit new features to <A HREF = "http://lammps.sandia.gov/authors.html">the +developers</A> that they add to +LAMMPS, especially if you think they will be useful to other users. +If they are broadly useful and meet the requirements listed above, we +may add them as core files to LAMMPS or as part of a standard package. +Else we will add them as a user package. +</P> +<P>With user packages, all we are really providing (aside from the fame +and fortune that accompanies having your name in the source code and +on the <A HREF = "http://lammps.sandia.gov/authors.html">Authors page</A> of the +<A HREF = "http://lammps.sandia.gov">LAMMPS WWW site</A>), is a means for you to distribute your work to +the LAMMPS user community and a mechanism for others to easily try out +your new feature. This may help you find bugs or make contact with +new collaborators. +</P> +<P><A HREF = "Section_modify.html">This section</A> of the documentation describes how +to add new features of various kinds to LAMMPS. Packages are simply +collections of these kinds of new class files which are typically +invoked as a new "style" within a LAMMPS input script. If designed +correctly, these additions do not require changes to the main core of +LAMMPS; they are simply add-on files. If you think your new feature +requires something else in LAMMPS to change, you'll need to +<A HREF = "http://lammps.sandia.gov/authors.html">communicate with the +developers</A>. +</P> +<P>Examples of user-contributed packages are in src sub-directories that +start with USER. We impose only a few minor restrictions on the +source files you submit. They need to have the LAMMPS copyright, GPL +notice, and your name at the top. They need to create a class that is +inside the LAMMPS namespace. You need to provide the Install.csh and +style*.h files that enable the package to be installed/un-installed. +See any of the other LAMMPS source or package files for examples. +Following this pattern will save you and us time when you submit the +files. +</P> +<P>Finally, you also need to include a README file with your package, so +that other users can get a quick idea of what it does and know how to +contact you. You also need to include a doc file in text format for +each of the new styles you are adding, which we will convert to HTML. +See the doc directory for numerous examples of these *.txt files; you +should use one of them as a template for the feature you are adding. +</P> +<HR> + <P>Any or all packages can be included or excluded when LAMMPS is built. -The one exception is that to use the "opt" package, you must also be -using the "molecule" and "manybody" packages. You may wish to exclude -certain packages if you will never run certain kinds of simulations. -This will keep you from having to build auxiliary libraries (see -below) and will produce a smaller executable which may run a bit -faster. +The one exception is that to use the standard "opt" package, you must +also be using the "molecule" and "manybody" packages. You may wish to +exclude certain packages if you will never run certain kinds of +simulations. This will keep you from having to build auxiliary +libraries (see below) and will produce a smaller executable which may +run a bit faster. </P> <P>By default, LAMMPS includes only the "kspace", "manybody", and -"molecule" packages. As described below, some packages require LAMMPS -be linked to separately built library files, which will require -editing of your src/MAKE/Makefile.machine. +"molecule" packages. As described below, some standard packages +require LAMMPS be linked to separately built library files, which will +require editing of your src/MAKE/Makefile.machine. </P> <P>Packages are included or excluded by typing "make yes-name" or "make no-name", where "name" is the name of the package. You can also type -"make yes-all" or "make no-all" to include/exclude all optional -packages. These commands work by simply moving files back and forth -between the main src directory and sub-directories with the package -name, so that the files are seen or not seen when LAMMPS is built. -After you have included or excluded a package, you must re-make -LAMMPS. +"make yes-standard", "make no-standard", "make yes-user", "make +no-user", "make yes-all" or "make no-all" to include/exclude various +sets of packages. These commands work by simply moving files back and +forth between the main src directory and sub-directories with the +package name, so that the files are seen or not seen when LAMMPS is +built. After you have included or excluded a package, you must +re-build LAMMPS. </P> <P>Additional make options exist to help manage LAMMPS files that exist in both the src directory and in package sub-directories. You do not @@ -356,6 +419,8 @@ directory with the appropriate Makefile, e.g. "make -f Makefile.g++". If one of the provided Makefiles is not appropriate for your system you can edit or add one as needed. </P> +<HR> + <H4><A NAME = "2_4"></A>2.4 Building LAMMPS as a library </H4> <P>LAMMPS can be built as a library, which can then be called from diff --git a/doc/Section_start.txt b/doc/Section_start.txt index 5a0794b4ba..010f40568e 100644 --- a/doc/Section_start.txt +++ b/doc/Section_start.txt @@ -259,14 +259,18 @@ build it. In the src/MAKE/Windows directory are some notes from users on how they built LAMMPS under Windows, so you can look at their instructions for tips. Good luck - we can't help you on this one. +:line + 2.3 Making LAMMPS with optional packages :h4,link(2_3) The source code for LAMMPS is structured as a large set of core files -that are always used plus additional packages, which are groups of -files that enable a specific set of features. For example, force -fields for molecular systems or granular systems are in packages. You -can see the list of packages by typing "make package". The current -list of packages is as follows: +that are always used plus additional optional packages, which are +groups of files that enable a specific set of features. For example, +force fields for molecular systems or granular systems are in +packages. You can see the list of both standard and user-contributed +packages by typing "make package". + +The current list of standard packages is as follows: asphere : aspherical particles and force fields class2 : class 2 force fields @@ -282,27 +286,86 @@ opt : optimized versions of a few pair potentials poems : coupled rigid body motion xtc : dump atom snapshots in XTC format :tb(s=:) +There are also user-contributed packages which may be as simple as a +single additional file (class) or many files grouped together which +add a specific functionality to the code. The difference between a +{standard} package versus a {user} package is as follows. + +Standard packages are supported by the LAMMPS developers and are +written in a syntax and style consistent with the rest of LAMMPS. +This means we will answer questions about them, debug and fix them if +necessary, and keep them compatible with future changes to LAMMPS. + +User packages don't necessarily meet these requirements. If you have +problems using a feature provided in a user package, you will likely +need to contact the contributor directly to get help. + +We encourage users to submit new features to "the +developers"_http://lammps.sandia.gov/authors.html that they add to +LAMMPS, especially if you think they will be useful to other users. +If they are broadly useful and meet the requirements listed above, we +may add them as core files to LAMMPS or as part of a standard package. +Else we will add them as a user package. + +With user packages, all we are really providing (aside from the fame +and fortune that accompanies having your name in the source code and +on the "Authors page"_http://lammps.sandia.gov/authors.html of the +"LAMMPS WWW site"_lws), is a means for you to distribute your work to +the LAMMPS user community and a mechanism for others to easily try out +your new feature. This may help you find bugs or make contact with +new collaborators. + +"This section"_Section_modify.html of the documentation describes how +to add new features of various kinds to LAMMPS. Packages are simply +collections of these kinds of new class files which are typically +invoked as a new "style" within a LAMMPS input script. If designed +correctly, these additions do not require changes to the main core of +LAMMPS; they are simply add-on files. If you think your new feature +requires something else in LAMMPS to change, you'll need to +"communicate with the +developers"_http://lammps.sandia.gov/authors.html. + +Examples of user-contributed packages are in src sub-directories that +start with USER. We impose only a few minor restrictions on the +source files you submit. They need to have the LAMMPS copyright, GPL +notice, and your name at the top. They need to create a class that is +inside the LAMMPS namespace. You need to provide the Install.csh and +style*.h files that enable the package to be installed/un-installed. +See any of the other LAMMPS source or package files for examples. +Following this pattern will save you and us time when you submit the +files. + +Finally, you also need to include a README file with your package, so +that other users can get a quick idea of what it does and know how to +contact you. You also need to include a doc file in text format for +each of the new styles you are adding, which we will convert to HTML. +See the doc directory for numerous examples of these *.txt files; you +should use one of them as a template for the feature you are adding. + +:line + Any or all packages can be included or excluded when LAMMPS is built. -The one exception is that to use the "opt" package, you must also be -using the "molecule" and "manybody" packages. You may wish to exclude -certain packages if you will never run certain kinds of simulations. -This will keep you from having to build auxiliary libraries (see -below) and will produce a smaller executable which may run a bit -faster. +The one exception is that to use the standard "opt" package, you must +also be using the "molecule" and "manybody" packages. You may wish to +exclude certain packages if you will never run certain kinds of +simulations. This will keep you from having to build auxiliary +libraries (see below) and will produce a smaller executable which may +run a bit faster. By default, LAMMPS includes only the "kspace", "manybody", and -"molecule" packages. As described below, some packages require LAMMPS -be linked to separately built library files, which will require -editing of your src/MAKE/Makefile.machine. +"molecule" packages. As described below, some standard packages +require LAMMPS be linked to separately built library files, which will +require editing of your src/MAKE/Makefile.machine. Packages are included or excluded by typing "make yes-name" or "make no-name", where "name" is the name of the package. You can also type -"make yes-all" or "make no-all" to include/exclude all optional -packages. These commands work by simply moving files back and forth -between the main src directory and sub-directories with the package -name, so that the files are seen or not seen when LAMMPS is built. -After you have included or excluded a package, you must re-make -LAMMPS. +"make yes-standard", "make no-standard", "make yes-user", "make +no-user", "make yes-all" or "make no-all" to include/exclude various +sets of packages. These commands work by simply moving files back and +forth between the main src directory and sub-directories with the +package name, so that the files are seen or not seen when LAMMPS is +built. After you have included or excluded a package, you must +re-build LAMMPS. Additional make options exist to help manage LAMMPS files that exist in both the src directory and in package sub-directories. You do not @@ -349,6 +412,8 @@ directory with the appropriate Makefile, e.g. "make -f Makefile.g++". If one of the provided Makefiles is not appropriate for your system you can edit or add one as needed. +:line + 2.4 Building LAMMPS as a library :h4,link(2_4) LAMMPS can be built as a library, which can then be called from diff --git a/doc/fix.html b/doc/fix.html index 0a9aacba19..7581c19e69 100644 --- a/doc/fix.html +++ b/doc/fix.html @@ -88,6 +88,7 @@ for individual fixes for info on which ones can be restarted. <LI><A HREF = "fix_gran_diag.html">fix gran/diag</A> - compute granular diagnostics <LI><A HREF = "fix_gravity.html">fix gravity</A> - add gravity to atoms in a granular simulation <LI><A HREF = "fix_gyration.html">fix gyration</A> - compute radius of gyration +<LI><A HREF = "fix_gyration.html">fix heat</A> - add/subtract momentum-conserving heat <LI><A HREF = "fix_indent.html">fix indent</A> - impose force due to an indenter <LI><A HREF = "fix_langevin.html">fix langevin</A> - Langevin temperature control <LI><A HREF = "fix_lineforce.html">fix lineforce</A> - constrain atoms to move in a line diff --git a/doc/fix.txt b/doc/fix.txt index 2841bf1e51..2e96c71036 100644 --- a/doc/fix.txt +++ b/doc/fix.txt @@ -85,6 +85,7 @@ Here is an alphabetic list of fix styles available in LAMMPS: "fix gran/diag"_fix_gran_diag.html - compute granular diagnostics "fix gravity"_fix_gravity.html - add gravity to atoms in a granular simulation "fix gyration"_fix_gyration.html - compute radius of gyration +"fix heat"_fix_gyration.html - add/subtract momentum-conserving heat "fix indent"_fix_indent.html - impose force due to an indenter "fix langevin"_fix_langevin.html - Langevin temperature control "fix lineforce"_fix_lineforce.html - constrain atoms to move in a line diff --git a/doc/kspace_style.html b/doc/kspace_style.html index 6a4d518812..69f337f524 100644 --- a/doc/kspace_style.html +++ b/doc/kspace_style.html @@ -34,12 +34,12 @@ kspace_style none </PRE> <P><B>Description:</B> </P> -<P>Define a K-space solver for LAMMPS to use each timestep to compute -long-range Coulombic interactions. When such a solver is used in -conjunction with an appropriate pair style, the cutoff for Coulombic -interactions is effectively infinite; each charge in the system -interacts with charges in an infinite array of periodic images of the -simulation domain. +<P>Define a reciprocal (K-space) solver for LAMMPS to use each timestep +to compute long-range Coulombic interactions. When such a solver is +used in conjunction with an appropriate pair style, the cutoff for +Coulombic interactions is effectively infinite; each charge in the +system interacts with charges in an infinite array of periodic images +of the simulation domain. </P> <P>The <I>ewald</I> style performs a standard Ewald summation as described in any solid-state physics text. diff --git a/doc/kspace_style.txt b/doc/kspace_style.txt index e7e5e24479..8dafaf56c3 100644 --- a/doc/kspace_style.txt +++ b/doc/kspace_style.txt @@ -29,12 +29,12 @@ kspace_style none :pre [Description:] -Define a K-space solver for LAMMPS to use each timestep to compute -long-range Coulombic interactions. When such a solver is used in -conjunction with an appropriate pair style, the cutoff for Coulombic -interactions is effectively infinite; each charge in the system -interacts with charges in an infinite array of periodic images of the -simulation domain. +Define a reciprocal (K-space) solver for LAMMPS to use each timestep +to compute long-range Coulombic interactions. When such a solver is +used in conjunction with an appropriate pair style, the cutoff for +Coulombic interactions is effectively infinite; each charge in the +system interacts with charges in an infinite array of periodic images +of the simulation domain. The {ewald} style performs a standard Ewald summation as described in any solid-state physics text. diff --git a/doc/pair_coeff.html b/doc/pair_coeff.html index 73a362aed7..1db5c00c51 100644 --- a/doc/pair_coeff.html +++ b/doc/pair_coeff.html @@ -84,15 +84,25 @@ the style to display the formula it computes, arguments specified in the pair_style command, and coefficients specified by the associated <A HREF = "pair_coeff.html">pair_coeff</A> command: </P> +<UL><LI><A HREF = "pair_hybrid.html">pair_style hybrid</A> - multiple styles of pairwise interactions +</UL> +<UL><LI><A HREF = "pair_hybrid.html">pair_style hybrid/overlay</A> - multiple styles of superposed pairwise interactions +</UL> <UL><LI><A HREF = "pair_airebo.html">pair_style airebo</A> - AI-REBO potential <LI><A HREF = "pair_buck.html">pair_style buck</A> - Buckingham potential <LI><A HREF = "pair_buck.html">pair_style buck/coul/cut</A> - Buckinhham with cutoff Coulomb <LI><A HREF = "pair_buck.html">pair_style buck/coul/long</A> - Buckingham with long-range Coulomb <LI><A HREF = "pair_colloid.html">pair_style colloid</A> - integrated colloidal potential +<LI><A HREF = "pair_coul.html">pair_style coul/cut</A> - cutoff Coulombic potential +<LI><A HREF = "pair_coul.html">pair_style coul/long</A> - long-range Coulombic potential +<LI><A HREF = "pair_dpd.html">pair_style dipole/cut</A> - point dipoles with cutoff <LI><A HREF = "pair_dpd.html">pair_style dpd</A> - dissipative particle dynamics (DPD) <LI><A HREF = "pair_eam.html">pair_style eam</A> - embedded atom method (EAM) +<LI><A HREF = "pair_eam.html">pair_style eam/opt</A> - optimized version of EAM <LI><A HREF = "pair_eam.html">pair_style eam/alloy</A> - alloy EAM +<LI><A HREF = "pair_eam.html">pair_style eam/alloy</A> - optimized version of alloy EAM <LI><A HREF = "pair_eam.html">pair_style eam/fs</A> - Finnis-Sinclair EAM +<LI><A HREF = "pair_eam.html">pair_style eam/fs</A> - optimized version of Finnis-Sinclair EAM <LI><A HREF = "pair_gayberne.html">pair_style gayberne</A> - Gay-Berne ellipsoidal potential <LI><A HREF = "pair_gran.html">pair_style gran/hertzian</A> - granular potential with Hertizain interactions <LI><A HREF = "pair_gran.html">pair_style gran/history</A> - granular potential with history effects @@ -100,10 +110,12 @@ the pair_style command, and coefficients specified by the associated <LI><A HREF = "pair_charmm.html">pair_style lj/charmm/coul/charmm</A> - CHARMM potential with cutoff Coulomb <LI><A HREF = "pair_charmm.html">pair_style lj/charmm/coul/charmm/implicit</A> - CHARMM for implicit solvent <LI><A HREF = "pair_charmm.html">pair_style lj/charmm/coul/long</A> - CHARMM with long-range Coulomb +<LI><A HREF = "pair_charmm.html">pair_style lj/charmm/coul/long/opt</A> - optimized version of CHARMM with long-range Coulomb <LI><A HREF = "pair_class2.html">pair_style lj/class2</A> - COMPASS (class 2) force field with no Coulomb <LI><A HREF = "pair_class2.html">pair_style lj/class2/coul/cut</A> - COMPASS with cutoff Coulomb <LI><A HREF = "pair_class2.html">pair_style lj/class2/coul/long</A> - COMPASS with long-range Coulomb <LI><A HREF = "pair_lj.html">pair_style lj/cut</A> - cutoff Lennard-Jones potential with no Coulomb +<LI><A HREF = "pair_lj.html">pair_style lj/cut/opt</A> - optimized version of cutoff LJ <LI><A HREF = "pair_lj.html">pair_style lj/cut/coul/cut</A> - LJ with cutoff Coulomb <LI><A HREF = "pair_lj.html">pair_style lj/cut/coul/debye</A> - LJ with Debye damping added to Coulomb <LI><A HREF = "pair_lj.html">pair_style lj/cut/coul/long</A> - LJ with long-range Coulomb @@ -112,6 +124,7 @@ the pair_style command, and coefficients specified by the associated <LI><A HREF = "pair_lj_smooth.html">pair_style lj/smooth</A> - smoothed Lennard-Jones potential <LI><A HREF = "pair_meam.html">pair_style meam</A> - modified embedded atom method (MEAM) <LI><A HREF = "pair_morse.html">pair_style morse</A> - Morse potential +<LI><A HREF = "pair_morse.html">pair_style morse</A> - optimized version of Morse potential <LI><A HREF = "pair_soft.html">pair_style soft</A> - Soft (cosine) potential <LI><A HREF = "pair_sw.html">pair_style sw</A> - Stillinger-Weber 3-body potential <LI><A HREF = "pair_table.html">pair_style table</A> - tabulated pair potential diff --git a/doc/pair_coeff.txt b/doc/pair_coeff.txt index acaeafab1c..9114bfd845 100644 --- a/doc/pair_coeff.txt +++ b/doc/pair_coeff.txt @@ -81,15 +81,24 @@ the style to display the formula it computes, arguments specified in the pair_style command, and coefficients specified by the associated "pair_coeff"_pair_coeff.html command: +"pair_style hybrid"_pair_hybrid.html - multiple styles of pairwise interactions :ul +"pair_style hybrid/overlay"_pair_hybrid.html - multiple styles of superposed pairwise interactions :ul + "pair_style airebo"_pair_airebo.html - AI-REBO potential "pair_style buck"_pair_buck.html - Buckingham potential "pair_style buck/coul/cut"_pair_buck.html - Buckinhham with cutoff Coulomb "pair_style buck/coul/long"_pair_buck.html - Buckingham with long-range Coulomb "pair_style colloid"_pair_colloid.html - integrated colloidal potential +"pair_style coul/cut"_pair_coul.html - cutoff Coulombic potential +"pair_style coul/long"_pair_coul.html - long-range Coulombic potential +"pair_style dipole/cut"_pair_dpd.html - point dipoles with cutoff "pair_style dpd"_pair_dpd.html - dissipative particle dynamics (DPD) "pair_style eam"_pair_eam.html - embedded atom method (EAM) +"pair_style eam/opt"_pair_eam.html - optimized version of EAM "pair_style eam/alloy"_pair_eam.html - alloy EAM +"pair_style eam/alloy"_pair_eam.html - optimized version of alloy EAM "pair_style eam/fs"_pair_eam.html - Finnis-Sinclair EAM +"pair_style eam/fs"_pair_eam.html - optimized version of Finnis-Sinclair EAM "pair_style gayberne"_pair_gayberne.html - Gay-Berne ellipsoidal potential "pair_style gran/hertzian"_pair_gran.html - granular potential with Hertizain interactions "pair_style gran/history"_pair_gran.html - granular potential with history effects @@ -97,10 +106,12 @@ the pair_style command, and coefficients specified by the associated "pair_style lj/charmm/coul/charmm"_pair_charmm.html - CHARMM potential with cutoff Coulomb "pair_style lj/charmm/coul/charmm/implicit"_pair_charmm.html - CHARMM for implicit solvent "pair_style lj/charmm/coul/long"_pair_charmm.html - CHARMM with long-range Coulomb +"pair_style lj/charmm/coul/long/opt"_pair_charmm.html - optimized version of CHARMM with long-range Coulomb "pair_style lj/class2"_pair_class2.html - COMPASS (class 2) force field with no Coulomb "pair_style lj/class2/coul/cut"_pair_class2.html - COMPASS with cutoff Coulomb "pair_style lj/class2/coul/long"_pair_class2.html - COMPASS with long-range Coulomb "pair_style lj/cut"_pair_lj.html - cutoff Lennard-Jones potential with no Coulomb +"pair_style lj/cut/opt"_pair_lj.html - optimized version of cutoff LJ "pair_style lj/cut/coul/cut"_pair_lj.html - LJ with cutoff Coulomb "pair_style lj/cut/coul/debye"_pair_lj.html - LJ with Debye damping added to Coulomb "pair_style lj/cut/coul/long"_pair_lj.html - LJ with long-range Coulomb @@ -109,6 +120,7 @@ the pair_style command, and coefficients specified by the associated "pair_style lj/smooth"_pair_lj_smooth.html - smoothed Lennard-Jones potential "pair_style meam"_pair_meam.html - modified embedded atom method (MEAM) "pair_style morse"_pair_morse.html - Morse potential +"pair_style morse"_pair_morse.html - optimized version of Morse potential "pair_style soft"_pair_soft.html - Soft (cosine) potential "pair_style sw"_pair_sw.html - Stillinger-Weber 3-body potential "pair_style table"_pair_table.html - tabulated pair potential diff --git a/doc/pair_hybrid.html b/doc/pair_hybrid.html index 3a389128fa..c1d533b9f7 100644 --- a/doc/pair_hybrid.html +++ b/doc/pair_hybrid.html @@ -11,54 +11,115 @@ <H3>pair_style hybrid command </H3> +<H3>pair_style hybrid/overlay command +</H3> <P><B>Syntax:</B> </P> -<PRE>pair_style hybrid style1 style2 ... +<PRE>pair_style hybrid style1 args style2 args ... +pair_style hybrid/overlay style1 args style2 args ... </PRE> -<UL><LI>style1,style2 = list of one or more pair styles +<UL><LI>style1,style2 = list of one or more pair styles and their arguments </UL> <P><B>Examples:</B> </P> -<PRE>pair_style hybrid lj/charmm/coul/long 10.0 eam +<PRE>pair_style hybrid lj/cut/coul/cut 10.0 eam lj/cut 5.0 pair_coeff 1*2 1*2 eam niu3 pair_coeff 3 3 lj/cut/coul/cut 1.0 1.0 pair_coeff 1*2 3 lj/cut 0.5 1.2 </PRE> +<PRE>pair_style hybrid/overlay lj/cut 2.5 coul/long 2.0 +pair_coeff * * lj/cut 1.0 1.0 +pair_coeff * * coul/long +</PRE> <P><B>Description:</B> </P> -<P>The <I>hybrid</I> style enables the use of multiple pair styles in one -simulation. A pair style can be assigned to each pair of atom types -via the <A HREF = "pair_coeff.html">pair_coeff</A> command. -</P> -<P>For example, a metal on a LJ surface could be computed where the metal -atoms interact with each other via a <I>eam</I> potential, the surface -atoms interact with each other via a <I>lj/cut</I> potential, and the -metal/surface interaction is also via a <I>lj/cut</I> potential. -</P> -<P>All pair styles that will be used must be listed in the pair_style -hybrid command (in any order). The name of each sub-style is followed -by its arguments, as illustrated in the example above. -</P> -<P>In the pair_coeff command, the first coefficient sets the pair style -and the remaining coefficients are those appropriate to that style. -For example, consider a simulation with 3 atom types: types 1 and 2 -are Ni atoms, type 3 are LJ atoms with charges. The following -commands would set up a hybrid simulation: +<P>The <I>hybrid</I> and <I>hybrid/overlay</I> styles enable the use of multiple +pair styles in one simulation. With the <I>hybrid</I> style, exactly one +pair style is assigned to each pair of atom types. With the +<I>hybrid/overlay</I> style, one or more pair styles can be assigned to +each pair of atom types. The assignment of pair styles to type pairs +is made via the <A HREF = "pair_coeff.html">pair_coeff</A> command. +</P> +<P>Here are two examples of hybrid simulations. The <I>hybrid</I> style could +be used for a simulation of a metal droplet on a LJ surface. The +metal atoms interact with each other via an <I>eam</I> potential, the +surface atoms interact with each other via a <I>lj/cut</I> potential, and +the metal/surface interaction is also computed via a <I>lj/cut</I> +potential. The <I>hybrid/overlay</I> style could be used as in the 2nd +example above, where multiple potentials are superposed in an additive +fashion to compute the interaction between atoms. In this example, +using <I>lj/cut</I> and <I>coul/long</I> together gives the same result as if +the <I>lj/cut/coul/long</I> potential were used by itself. In this case, +it would be more efficient to use the single combined potential, but +in general any combination of pair potentials can be used together in +to produce an interaction that is not encoded in any single pair_style +file, e.g. adding Coulombic forces between granular particles. +</P> +<P>All pair styles that will be used are listed as "sub-styles" following +the <I>hybrid</I> or <I>hybrid/overlay</I> keyword, in any order. Each +sub-style's name is followed by its usual arguments, as illustrated in +the example above. See the doc pages of individual pair styles for a +listing and explanation of the appropriate arguments. +</P> +<P>The pair_coeff commands are also specified exactly as they would be +for a simulation using only one pair style, with one additional +argument. Following the I,J type specification, the first argument +sets the pair sub-style. The remaining arguments are the coefficients +appropriate to that style. For example, consider a simulation with 3 +atom types: types 1 and 2 are Ni atoms, type 3 are LJ atoms with +charges. The following commands would set up a hybrid simulation: </P> <PRE>pair_style hybrid eam/alloy lj/cut/coul/cut 10.0 lj/cut 8.0 -pair_coeff * * eam/alloy nialhjea 1 1 0 +pair_coeff * * eam/alloy nialhjea Ni Ni NULL pair_coeff 3 3 lj/cut/coul/cut 1.0 1.0 -pair_coeff 1*2 3 lj/cut 0.8 1.1 +pair_coeff 1*2 3 lj/cut 0.8 1.3 </PRE> -<P>If the pair_coeff command for a sub-style requires the use of * * as -atom type arguments (e.g. the <I>eam/alloy</I> example above), then it will -also include trailing arguments which map atom types to elements in -the potential. These mapping arguments should be specified as 0 if -the sub-style is not being applied to certain atom types. -</P> -<P>Note that you may also need to use an <A HREF = "atom_style.html">atom_style</A> -hybrid command in your input script, if atoms in the simulation will -have attributes from several atom styles, due to using multiple pair +<P>Note that the pair_coeff command for <I>eam/alloy</I> includes a mapping +specification of elements to all atom types, even those not assigned +to the <I>eam/alloy</I> potential. The NULL keyword is used by such +potentials (eam/alloy, Tersoff, AIREBO, etc), to denote an atom type +that will be assigned to a different sub-style. +</P> +<P>For the <I>hybrid</I> style, each atom type pair I,J is assigned to exactly +one sub-style. Just as with a simulation using a single pair style, +if you specify the same atom type pair in a second pair_coeff command, +the previous assignment will be overwritten. +</P> +<P>For the <I>hybrid/overlay</I> style, each atom type pair I,J can be +assigned to one or more sub-styles. Thus if you specify the same atom +type pair in a second pair_coeff command, a second sub-style is added +to the list of potentials that will be calculated for two interactings +atoms of those types. +</P> +<P>The following coefficients must be defined for each pair of atoms +types via the <A HREF = "pair_coeff.html">pair_coeff</A> command as in the examples +above, or in the data file or restart files read by the +<A HREF = "read_data.html">read_data</A> or <A HREF = "read_restart.html">read_restart</A> +commands, or by mixing as described below: +</P> +<P>For both the <I>hybrid</I> and <I>hybrid/overlay</I> styles, every atom type +pair I,J (where I <= J) must be assigned to at least one sub-style via +the <A HREF = "pair_coeff.html">pair_coeff</A> command as in the examples above, or +in the data file read by the <A HREF = "read_data.html">read_data</A>, or by mixing +as described below. +</P> +<P>If you want there to be no interactions between a particular pair of +atom types, you have 3 choices. You can assign the type pair to some +sub-style and use the <A HREF = "neigh_modify">neigh_modify exclude type</A> +command. You can assign it to some sub-style and set the coefficients +so that there is effectively no interaction (e.g. epsilon = 0.0 in a +LJ potential). Or, for <I>hybrid</I> and <I>hybrid/overlay</I> simluations, you +can use this form of the pair_coeff command: +</P> +<PRE>pair_coeff 2 3 none +</PRE> +<P>If an assignment to <I>none</I> is made in a simluation with the +<I>hybrid/overlay</I> pair style, it wipes out all previous assignments of +that atom type pair to sub-styles. +</P> +<P>Note that you may need to use an <A HREF = "atom_style.html">atom_style</A> hybrid +command in your input script, if atoms in the simulation will need +attributes from several atom styles, due to using multiple pair potentials. </P> <HR> @@ -72,39 +133,39 @@ sub-styles of the hybrid potential. </P> <P>For atom type pairs I,J and I != J, if the sub-style assigned to I,I and J,J is the same, and if the sub-style allows for mixing, then the -coefficients for I,J can be mixed. The default mix value is -<I>geometric</I>. See the "pair_modify" command for details. See the -See the doc page for the sub-style to see if allows for mixing. -</P> -<P>The hybrid pair style supports the <A HREF = "pair_modify.html">pair_modify</A> +coefficients for I,J can be mixed. This means you do not have to +specify a pair_coeff command for I,J since the I,J type pair will be +assigned automatically to the I,I sub-style and its coefficients +generated by the mixing rule used by that sub-style. For the +<I>hybrid/overlay</I> style, there is an additional requirement that both +the I,I and J,J pairs are assigned to a single sub-style. See the +"pair_modify" command for details of mixing rules. See the See the +doc page for the sub-style to see if allows for mixing. +</P> +<P>The hybrid pair styles supports the <A HREF = "pair_modify.html">pair_modify</A> shift, table, and tail options for an I,J pair interaction, if the associated sub-style supports it. </P> -<P>The hybrid pair style can calculate per-atom energy and stress, as +<P>The hybrid pair styles can calculate per-atom energy and stress, as used by the <A HREF = "compute_epair_atom.html">compute epair/atom</A>, <A HREF = "compute_stress_atom.html">compute stress/atom</A>, and <A HREF = "dump.html">dump custom</A> commands, if all its sub-styles can perform per-atom calculations. </P> -<P>For the hybrid pair style, the list of sub-styles and their respective -settings are written to <A HREF = "restart.html">binary restart files</A>, so a -pair_style command does not need to specified in an input script that -reads a restart file. However, the coefficient information is not -stored in the restart file. Thus, pair_coeff commands do need to be -specified in the restart input script. +<P>For the hybrid pair styles, the list of sub-styles and their +respective settings are written to <A HREF = "restart.html">binary restart +files</A>, so a pair_style command does not need to +specified in an input script that reads a restart file. However, the +coefficient information is not stored in the restart file. Thus, +pair_coeff commands need to be specified in the restart input script. </P> <P><B>Restrictions:</B> </P> -<P>A pair style of <I>none</I> can be specified as an argument to pair_style -hybrid and the corresponding pair_coeff commands, if you desire to -turn off pairwise interactions between certain pairs of atom types. -</P> <P>When using a long-range Coulomic solver (via the -<A HREF = "kspace_style">kspace_style</A> command) with pair_style hybrid, one or -more sub-styles will be of the "long" variety. -E.g. <I>lj/cut/coul/long</I> or <I>buck/coul/long</I>. It is OK to have more -than one sub-style with a "long" component, but you must insure that -the short-range Coulombic cutoff used by each of these pair styles is -consistent. Else the long-range Coulombic solve will be inconsistent. +<A HREF = "kspace_style">kspace_style</A> command) with a hybrid pair_style, one or +more sub-styles will be of the "long" variety, e.g. <I>lj/cut/coul/long</I> +or <I>buck/coul/long</I>. You must insure that the short-range Coulombic +cutoff used by each of these long pair styles is the same or else +LAMMPS will generate an error. </P> <P><B>Related commands:</B> </P> diff --git a/doc/pair_hybrid.txt b/doc/pair_hybrid.txt index ff27251384..c4851e7ddc 100644 --- a/doc/pair_hybrid.txt +++ b/doc/pair_hybrid.txt @@ -7,55 +7,115 @@ :line pair_style hybrid command :h3 +pair_style hybrid/overlay command :h3 [Syntax:] -pair_style hybrid style1 style2 ... :pre +pair_style hybrid style1 args style2 args ... +pair_style hybrid/overlay style1 args style2 args ... :pre -style1,style2 = list of one or more pair styles :ul +style1,style2 = list of one or more pair styles and their arguments :ul [Examples:] -pair_style hybrid lj/charmm/coul/long 10.0 eam +pair_style hybrid lj/cut/coul/cut 10.0 eam lj/cut 5.0 pair_coeff 1*2 1*2 eam niu3 pair_coeff 3 3 lj/cut/coul/cut 1.0 1.0 pair_coeff 1*2 3 lj/cut 0.5 1.2 :pre -[Description:] - -The {hybrid} style enables the use of multiple pair styles in one -simulation. A pair style can be assigned to each pair of atom types -via the "pair_coeff"_pair_coeff.html command. +pair_style hybrid/overlay lj/cut 2.5 coul/long 2.0 +pair_coeff * * lj/cut 1.0 1.0 +pair_coeff * * coul/long :pre -For example, a metal on a LJ surface could be computed where the metal -atoms interact with each other via a {eam} potential, the surface -atoms interact with each other via a {lj/cut} potential, and the -metal/surface interaction is also via a {lj/cut} potential. - -All pair styles that will be used must be listed in the pair_style -hybrid command (in any order). The name of each sub-style is followed -by its arguments, as illustrated in the example above. +[Description:] -In the pair_coeff command, the first coefficient sets the pair style -and the remaining coefficients are those appropriate to that style. -For example, consider a simulation with 3 atom types: types 1 and 2 -are Ni atoms, type 3 are LJ atoms with charges. The following -commands would set up a hybrid simulation: +The {hybrid} and {hybrid/overlay} styles enable the use of multiple +pair styles in one simulation. With the {hybrid} style, exactly one +pair style is assigned to each pair of atom types. With the +{hybrid/overlay} style, one or more pair styles can be assigned to +each pair of atom types. The assignment of pair styles to type pairs +is made via the "pair_coeff"_pair_coeff.html command. + +Here are two examples of hybrid simulations. The {hybrid} style could +be used for a simulation of a metal droplet on a LJ surface. The +metal atoms interact with each other via an {eam} potential, the +surface atoms interact with each other via a {lj/cut} potential, and +the metal/surface interaction is also computed via a {lj/cut} +potential. The {hybrid/overlay} style could be used as in the 2nd +example above, where multiple potentials are superposed in an additive +fashion to compute the interaction between atoms. In this example, +using {lj/cut} and {coul/long} together gives the same result as if +the {lj/cut/coul/long} potential were used by itself. In this case, +it would be more efficient to use the single combined potential, but +in general any combination of pair potentials can be used together in +to produce an interaction that is not encoded in any single pair_style +file, e.g. adding Coulombic forces between granular particles. + +All pair styles that will be used are listed as "sub-styles" following +the {hybrid} or {hybrid/overlay} keyword, in any order. Each +sub-style's name is followed by its usual arguments, as illustrated in +the example above. See the doc pages of individual pair styles for a +listing and explanation of the appropriate arguments. + +The pair_coeff commands are also specified exactly as they would be +for a simulation using only one pair style, with one additional +argument. Following the I,J type specification, the first argument +sets the pair sub-style. The remaining arguments are the coefficients +appropriate to that style. For example, consider a simulation with 3 +atom types: types 1 and 2 are Ni atoms, type 3 are LJ atoms with +charges. The following commands would set up a hybrid simulation: pair_style hybrid eam/alloy lj/cut/coul/cut 10.0 lj/cut 8.0 -pair_coeff * * eam/alloy nialhjea 1 1 0 +pair_coeff * * eam/alloy nialhjea Ni Ni NULL pair_coeff 3 3 lj/cut/coul/cut 1.0 1.0 -pair_coeff 1*2 3 lj/cut 0.8 1.1 :pre - -If the pair_coeff command for a sub-style requires the use of * * as -atom type arguments (e.g. the {eam/alloy} example above), then it will -also include trailing arguments which map atom types to elements in -the potential. These mapping arguments should be specified as 0 if -the sub-style is not being applied to certain atom types. - -Note that you may also need to use an "atom_style"_atom_style.html -hybrid command in your input script, if atoms in the simulation will -have attributes from several atom styles, due to using multiple pair +pair_coeff 1*2 3 lj/cut 0.8 1.3 :pre + +Note that the pair_coeff command for {eam/alloy} includes a mapping +specification of elements to all atom types, even those not assigned +to the {eam/alloy} potential. The NULL keyword is used by such +potentials (eam/alloy, Tersoff, AIREBO, etc), to denote an atom type +that will be assigned to a different sub-style. + +For the {hybrid} style, each atom type pair I,J is assigned to exactly +one sub-style. Just as with a simulation using a single pair style, +if you specify the same atom type pair in a second pair_coeff command, +the previous assignment will be overwritten. + +For the {hybrid/overlay} style, each atom type pair I,J can be +assigned to one or more sub-styles. Thus if you specify the same atom +type pair in a second pair_coeff command, a second sub-style is added +to the list of potentials that will be calculated for two interactings +atoms of those types. + +The following coefficients must be defined for each pair of atoms +types via the "pair_coeff"_pair_coeff.html command as in the examples +above, or in the data file or restart files read by the +"read_data"_read_data.html or "read_restart"_read_restart.html +commands, or by mixing as described below: + +For both the {hybrid} and {hybrid/overlay} styles, every atom type +pair I,J (where I <= J) must be assigned to at least one sub-style via +the "pair_coeff"_pair_coeff.html command as in the examples above, or +in the data file read by the "read_data"_read_data.html, or by mixing +as described below. + +If you want there to be no interactions between a particular pair of +atom types, you have 3 choices. You can assign the type pair to some +sub-style and use the "neigh_modify exclude type"_neigh_modify +command. You can assign it to some sub-style and set the coefficients +so that there is effectively no interaction (e.g. epsilon = 0.0 in a +LJ potential). Or, for {hybrid} and {hybrid/overlay} simluations, you +can use this form of the pair_coeff command: + +pair_coeff 2 3 none :pre + +If an assignment to {none} is made in a simluation with the +{hybrid/overlay} pair style, it wipes out all previous assignments of +that atom type pair to sub-styles. + +Note that you may need to use an "atom_style"_atom_style.html hybrid +command in your input script, if atoms in the simulation will need +attributes from several atom styles, due to using multiple pair potentials. :line @@ -69,39 +129,39 @@ sub-styles of the hybrid potential. For atom type pairs I,J and I != J, if the sub-style assigned to I,I and J,J is the same, and if the sub-style allows for mixing, then the -coefficients for I,J can be mixed. The default mix value is -{geometric}. See the "pair_modify" command for details. See the -See the doc page for the sub-style to see if allows for mixing. - -The hybrid pair style supports the "pair_modify"_pair_modify.html +coefficients for I,J can be mixed. This means you do not have to +specify a pair_coeff command for I,J since the I,J type pair will be +assigned automatically to the I,I sub-style and its coefficients +generated by the mixing rule used by that sub-style. For the +{hybrid/overlay} style, there is an additional requirement that both +the I,I and J,J pairs are assigned to a single sub-style. See the +"pair_modify" command for details of mixing rules. See the See the +doc page for the sub-style to see if allows for mixing. + +The hybrid pair styles supports the "pair_modify"_pair_modify.html shift, table, and tail options for an I,J pair interaction, if the associated sub-style supports it. -The hybrid pair style can calculate per-atom energy and stress, as +The hybrid pair styles can calculate per-atom energy and stress, as used by the "compute epair/atom"_compute_epair_atom.html, "compute stress/atom"_compute_stress_atom.html, and "dump custom"_dump.html commands, if all its sub-styles can perform per-atom calculations. -For the hybrid pair style, the list of sub-styles and their respective -settings are written to "binary restart files"_restart.html, so a -pair_style command does not need to specified in an input script that -reads a restart file. However, the coefficient information is not -stored in the restart file. Thus, pair_coeff commands do need to be -specified in the restart input script. +For the hybrid pair styles, the list of sub-styles and their +respective settings are written to "binary restart +files"_restart.html, so a pair_style command does not need to +specified in an input script that reads a restart file. However, the +coefficient information is not stored in the restart file. Thus, +pair_coeff commands need to be specified in the restart input script. [Restrictions:] -A pair style of {none} can be specified as an argument to pair_style -hybrid and the corresponding pair_coeff commands, if you desire to -turn off pairwise interactions between certain pairs of atom types. - When using a long-range Coulomic solver (via the -"kspace_style"_kspace_style command) with pair_style hybrid, one or -more sub-styles will be of the "long" variety. -E.g. {lj/cut/coul/long} or {buck/coul/long}. It is OK to have more -than one sub-style with a "long" component, but you must insure that -the short-range Coulombic cutoff used by each of these pair styles is -consistent. Else the long-range Coulombic solve will be inconsistent. +"kspace_style"_kspace_style command) with a hybrid pair_style, one or +more sub-styles will be of the "long" variety, e.g. {lj/cut/coul/long} +or {buck/coul/long}. You must insure that the short-range Coulombic +cutoff used by each of these long pair styles is the same or else +LAMMPS will generate an error. [Related commands:] diff --git a/doc/pair_lj.html b/doc/pair_lj.html index 33f227d3c5..358815578c 100644 --- a/doc/pair_lj.html +++ b/doc/pair_lj.html @@ -117,7 +117,7 @@ applied to the Coulombic term so it can be used in conjunction with the <A HREF = "kspace_style.html">kspace_style</A> command and its <I>ewald</I> or <I>pppm</I> option. The Coulombic cutoff specified for this style means that pairwise interactions within this distance are computed directly; -interactions outside that distance are computed in K-space. +interactions outside that distance are computed in reciprocal space. </P> <P>Style <I>lj/cut/coul/long/tip4p</I> implements the TIP4P water model of <A HREF = "#Jorgensen">(Jorgensen)</A>, which introduces a massless site located a diff --git a/doc/pair_lj.txt b/doc/pair_lj.txt index 154045a722..96e66334ec 100644 --- a/doc/pair_lj.txt +++ b/doc/pair_lj.txt @@ -109,7 +109,7 @@ applied to the Coulombic term so it can be used in conjunction with the "kspace_style"_kspace_style.html command and its {ewald} or {pppm} option. The Coulombic cutoff specified for this style means that pairwise interactions within this distance are computed directly; -interactions outside that distance are computed in K-space. +interactions outside that distance are computed in reciprocal space. Style {lj/cut/coul/long/tip4p} implements the TIP4P water model of "(Jorgensen)"_#Jorgensen, which introduces a massless site located a diff --git a/doc/pair_style.html b/doc/pair_style.html index 6c5e470412..ed0ce87e1f 100644 --- a/doc/pair_style.html +++ b/doc/pair_style.html @@ -17,14 +17,16 @@ </PRE> <UL><LI>style = one of the following -<UL><LI><I>none</I>, <I>hybrid</I>, <I>airebo</I>, <I>buck</I>, <I>buck/coul/cut</I>, <I>buck/coul/long</I>, -<LI><I>dpd</I>, <I>eam</I>, <I>eam/alloy</I> or <I>eam/fs</I>, <I>gran/hertzian</I>, -<LI><I>gran/history</I>, <I>gran/no_history</I>, <I>lj/charmm/coul/charmm</I>, -<LI><I>lj/charmm/coul/charmm/implicit</I> or <I>lj/charmm/coul/long</I>, -<LI><I>lj/class2</I>, <I>lj/class2/coul/cut</I> or <I>lj/class2/coul/long</I>, <I>lj/cut</I>, -<LI><I>lj/cut/coul/cut</I> or <I>lj/cut/coul/debye</I>, <I>lj/cut/coul/long</I>, +<UL><LI><I>none</I>, <I>hybrid</I>, <I>hybrid/overlay</I>, <I>airebo</I>, <I>buck</I>, <I>buck/coul/cut</I>, +<LI><I>buck/coul/long</I>, <I>coul/cut</I>, <I>coul/long</I>, <I>dipole/cut</I>, <I>dpd</I>, <I>eam</I>, +<LI><I>eam/opt</I>, <I>eam/alloy</I>, <I>eam/alloy/opt</I>, <I>eam/fs</I>, <I>eam/fs/opt</I>, +<LI><I>gayberne</I>, <I>gran/hertzian</I>, <I>gran/history</I>, <I>gran/no_history</I>, +<LI><I>lj/charmm/coul/charmm</I>, <I>lj/charmm/coul/charmm/implicit</I>, +<LI><I>lj/charmm/coul/long</I>, <I>lj/charmm/coul/long/opt</I>, <I>lj/class2</I>, +<LI><I>lj/class2/coul/cut</I>, <I>lj/class2/coul/long</I>, <I>lj/cut</I>, <I>lj/cut/opt</I>, +<LI><I>lj/cut/coul/cut</I>, <I>lj/cut/coul/debye</I>, <I>lj/cut/coul/long</I>, <LI><I>lj/cut/coul/long/tip4p</I>, <I>lj/expand</I>, <I>lj/smooth</I>, <I>meam</I>, <I>morse</I>, -<LI><I>soft</I>, <I>sw</I>, <I>table</I>, <I>tersoff</I>, <I>yukawa</I> +<LI><I>morse/opt</I>, <I>soft</I>, <I>sw</I>, <I>table</I>, <I>tersoff</I>, <I>yukawa</I> </UL> <LI>args = arguments used by a particular style </UL> @@ -99,17 +101,25 @@ the pair_style command, and coefficients specified by the associated <A HREF = "pair_coeff.html">pair_coeff</A> command: </P> <UL><LI><A HREF = "pair_none.html">pair_style none</A> - turn off pairwise interactions -<LI><A HREF = "pair_hybrid.html">pair_style hybrid</A> - define multiple styles of pairwise interactions +<LI><A HREF = "pair_hybrid.html">pair_style hybrid</A> - multiple styles of pairwise interactions +</UL> +<UL><LI><A HREF = "pair_hybrid.html">pair_style hybrid/overlay</A> - multiple styles of superposed pairwise interactions </UL> <UL><LI><A HREF = "pair_airebo.html">pair_style airebo</A> - AI-REBO potential <LI><A HREF = "pair_buck.html">pair_style buck</A> - Buckingham potential <LI><A HREF = "pair_buck.html">pair_style buck/coul/cut</A> - Buckinhham with cutoff Coulomb <LI><A HREF = "pair_buck.html">pair_style buck/coul/long</A> - Buckingham with long-range Coulomb <LI><A HREF = "pair_colloid.html">pair_style colloid</A> - integrated colloidal potential +<LI><A HREF = "pair_coul.html">pair_style coul/cut</A> - cutoff Coulombic potential +<LI><A HREF = "pair_coul.html">pair_style coul/long</A> - long-range Coulombic potential +<LI><A HREF = "pair_dpd.html">pair_style dipole/cut</A> - point dipoles with cutoff <LI><A HREF = "pair_dpd.html">pair_style dpd</A> - dissipative particle dynamics (DPD) <LI><A HREF = "pair_eam.html">pair_style eam</A> - embedded atom method (EAM) +<LI><A HREF = "pair_eam.html">pair_style eam/opt</A> - optimized version of EAM <LI><A HREF = "pair_eam.html">pair_style eam/alloy</A> - alloy EAM +<LI><A HREF = "pair_eam.html">pair_style eam/alloy</A> - optimized version of alloy EAM <LI><A HREF = "pair_eam.html">pair_style eam/fs</A> - Finnis-Sinclair EAM +<LI><A HREF = "pair_eam.html">pair_style eam/fs</A> - optimized version of Finnis-Sinclair EAM <LI><A HREF = "pair_gayberne.html">pair_style gayberne</A> - Gay-Berne ellipsoidal potential <LI><A HREF = "pair_gran.html">pair_style gran/hertzian</A> - granular potential with Hertizain interactions <LI><A HREF = "pair_gran.html">pair_style gran/history</A> - granular potential with history effects @@ -117,10 +127,12 @@ the pair_style command, and coefficients specified by the associated <LI><A HREF = "pair_charmm.html">pair_style lj/charmm/coul/charmm</A> - CHARMM potential with cutoff Coulomb <LI><A HREF = "pair_charmm.html">pair_style lj/charmm/coul/charmm/implicit</A> - CHARMM for implicit solvent <LI><A HREF = "pair_charmm.html">pair_style lj/charmm/coul/long</A> - CHARMM with long-range Coulomb +<LI><A HREF = "pair_charmm.html">pair_style lj/charmm/coul/long/opt</A> - optimized version of CHARMM with long-range Coulomb <LI><A HREF = "pair_class2.html">pair_style lj/class2</A> - COMPASS (class 2) force field with no Coulomb <LI><A HREF = "pair_class2.html">pair_style lj/class2/coul/cut</A> - COMPASS with cutoff Coulomb <LI><A HREF = "pair_class2.html">pair_style lj/class2/coul/long</A> - COMPASS with long-range Coulomb <LI><A HREF = "pair_lj.html">pair_style lj/cut</A> - cutoff Lennard-Jones potential with no Coulomb +<LI><A HREF = "pair_lj.html">pair_style lj/cut/opt</A> - optimized version of cutoff LJ <LI><A HREF = "pair_lj.html">pair_style lj/cut/coul/cut</A> - LJ with cutoff Coulomb <LI><A HREF = "pair_lj.html">pair_style lj/cut/coul/debye</A> - LJ with Debye damping added to Coulomb <LI><A HREF = "pair_lj.html">pair_style lj/cut/coul/long</A> - LJ with long-range Coulomb @@ -129,6 +141,7 @@ the pair_style command, and coefficients specified by the associated <LI><A HREF = "pair_lj_smooth.html">pair_style lj/smooth</A> - smoothed Lennard-Jones potential <LI><A HREF = "pair_meam.html">pair_style meam</A> - modified embedded atom method (MEAM) <LI><A HREF = "pair_morse.html">pair_style morse</A> - Morse potential +<LI><A HREF = "pair_morse.html">pair_style morse</A> - optimized version of Morse potential <LI><A HREF = "pair_soft.html">pair_style soft</A> - Soft (cosine) potential <LI><A HREF = "pair_sw.html">pair_style sw</A> - Stillinger-Weber 3-body potential <LI><A HREF = "pair_table.html">pair_style table</A> - tabulated pair potential diff --git a/doc/pair_style.txt b/doc/pair_style.txt index 9a6384a8a1..c005cd7927 100644 --- a/doc/pair_style.txt +++ b/doc/pair_style.txt @@ -14,14 +14,16 @@ pair_style style args :pre style = one of the following :ulb,l -{none}, {hybrid}, {airebo}, {buck}, {buck/coul/cut}, {buck/coul/long}, -{dpd}, {eam}, {eam/alloy} or {eam/fs}, {gran/hertzian}, -{gran/history}, {gran/no_history}, {lj/charmm/coul/charmm}, -{lj/charmm/coul/charmm/implicit} or {lj/charmm/coul/long}, -{lj/class2}, {lj/class2/coul/cut} or {lj/class2/coul/long}, {lj/cut}, -{lj/cut/coul/cut} or {lj/cut/coul/debye}, {lj/cut/coul/long}, +{none}, {hybrid}, {hybrid/overlay}, {airebo}, {buck}, {buck/coul/cut}, +{buck/coul/long}, {coul/cut}, {coul/long}, {dipole/cut}, {dpd}, {eam}, +{eam/opt}, {eam/alloy}, {eam/alloy/opt}, {eam/fs}, {eam/fs/opt}, +{gayberne}, {gran/hertzian}, {gran/history}, {gran/no_history}, +{lj/charmm/coul/charmm}, {lj/charmm/coul/charmm/implicit}, +{lj/charmm/coul/long}, {lj/charmm/coul/long/opt}, {lj/class2}, +{lj/class2/coul/cut}, {lj/class2/coul/long}, {lj/cut}, {lj/cut/opt}, +{lj/cut/coul/cut}, {lj/cut/coul/debye}, {lj/cut/coul/long}, {lj/cut/coul/long/tip4p}, {lj/expand}, {lj/smooth}, {meam}, {morse}, -{soft}, {sw}, {table}, {tersoff}, {yukawa} :ul +{morse/opt}, {soft}, {sw}, {table}, {tersoff}, {yukawa} :ul args = arguments used by a particular style :l,ule @@ -96,17 +98,24 @@ the pair_style command, and coefficients specified by the associated "pair_coeff"_pair_coeff.html command: "pair_style none"_pair_none.html - turn off pairwise interactions -"pair_style hybrid"_pair_hybrid.html - define multiple styles of pairwise interactions :ul +"pair_style hybrid"_pair_hybrid.html - multiple styles of pairwise interactions :ul +"pair_style hybrid/overlay"_pair_hybrid.html - multiple styles of superposed pairwise interactions :ul "pair_style airebo"_pair_airebo.html - AI-REBO potential "pair_style buck"_pair_buck.html - Buckingham potential "pair_style buck/coul/cut"_pair_buck.html - Buckinhham with cutoff Coulomb "pair_style buck/coul/long"_pair_buck.html - Buckingham with long-range Coulomb "pair_style colloid"_pair_colloid.html - integrated colloidal potential +"pair_style coul/cut"_pair_coul.html - cutoff Coulombic potential +"pair_style coul/long"_pair_coul.html - long-range Coulombic potential +"pair_style dipole/cut"_pair_dpd.html - point dipoles with cutoff "pair_style dpd"_pair_dpd.html - dissipative particle dynamics (DPD) "pair_style eam"_pair_eam.html - embedded atom method (EAM) +"pair_style eam/opt"_pair_eam.html - optimized version of EAM "pair_style eam/alloy"_pair_eam.html - alloy EAM +"pair_style eam/alloy"_pair_eam.html - optimized version of alloy EAM "pair_style eam/fs"_pair_eam.html - Finnis-Sinclair EAM +"pair_style eam/fs"_pair_eam.html - optimized version of Finnis-Sinclair EAM "pair_style gayberne"_pair_gayberne.html - Gay-Berne ellipsoidal potential "pair_style gran/hertzian"_pair_gran.html - granular potential with Hertizain interactions "pair_style gran/history"_pair_gran.html - granular potential with history effects @@ -114,10 +123,12 @@ the pair_style command, and coefficients specified by the associated "pair_style lj/charmm/coul/charmm"_pair_charmm.html - CHARMM potential with cutoff Coulomb "pair_style lj/charmm/coul/charmm/implicit"_pair_charmm.html - CHARMM for implicit solvent "pair_style lj/charmm/coul/long"_pair_charmm.html - CHARMM with long-range Coulomb +"pair_style lj/charmm/coul/long/opt"_pair_charmm.html - optimized version of CHARMM with long-range Coulomb "pair_style lj/class2"_pair_class2.html - COMPASS (class 2) force field with no Coulomb "pair_style lj/class2/coul/cut"_pair_class2.html - COMPASS with cutoff Coulomb "pair_style lj/class2/coul/long"_pair_class2.html - COMPASS with long-range Coulomb "pair_style lj/cut"_pair_lj.html - cutoff Lennard-Jones potential with no Coulomb +"pair_style lj/cut/opt"_pair_lj.html - optimized version of cutoff LJ "pair_style lj/cut/coul/cut"_pair_lj.html - LJ with cutoff Coulomb "pair_style lj/cut/coul/debye"_pair_lj.html - LJ with Debye damping added to Coulomb "pair_style lj/cut/coul/long"_pair_lj.html - LJ with long-range Coulomb @@ -126,6 +137,7 @@ the pair_style command, and coefficients specified by the associated "pair_style lj/smooth"_pair_lj_smooth.html - smoothed Lennard-Jones potential "pair_style meam"_pair_meam.html - modified embedded atom method (MEAM) "pair_style morse"_pair_morse.html - Morse potential +"pair_style morse"_pair_morse.html - optimized version of Morse potential "pair_style soft"_pair_soft.html - Soft (cosine) potential "pair_style sw"_pair_sw.html - Stillinger-Weber 3-body potential "pair_style table"_pair_table.html - tabulated pair potential -- GitLab