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openmm/plugins/amoeba/platforms/reference/tests/TestReferenceAmoebaExtrapolatedPolarization.cpp
Evan Pretti 05472c9a81 Update file headers (#5074) 
* Replace SimTK-containing file headers

* Update file headers for new Tinker reader files added
2025-09-23 10:27:26 -07:00

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/* -------------------------------------------------------------------------- *
* OpenMMAmoeba *
* -------------------------------------------------------------------------- *
* This is part of the OpenMM molecular simulation toolkit. *
* See https://openmm.org/development. *
* *
* Portions copyright (c) 2008-2015 Stanford University and the Authors. *
* Authors: Peter Eastman *
* Contributors: *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the "Software"), *
* to deal in the Software without restriction, including without limitation *
* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
* and/or sell copies of the Software, and to permit persons to whom the *
* Software is furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included in *
* all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS, CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE *
* USE OR OTHER DEALINGS IN THE SOFTWARE. *
* -------------------------------------------------------------------------- */
/**
* This tests the Reference implementation of the extrapolated polarization algorithms in AmoebaMultipoleForce.
*/
#include "openmm/internal/AssertionUtilities.h"
#include "openmm/Context.h"
#include "OpenMMAmoeba.h"
#include "openmm/System.h"
#include "openmm/AmoebaMultipoleForce.h"
#include "openmm/LangevinIntegrator.h"
#include "openmm/Vec3.h"
#include "openmm/Units.h"
#include <iostream>
#include <iomanip>
#include <vector>
#include <stdlib.h>
#include <stdio.h>
#define ASSERT_EQUAL_TOL_MOD(expected, found, tol, testname) {double _scale_ = std::abs(expected) > 1.0 ? std::abs(expected) : 1.0; if (!(std::abs((expected)-(found))/_scale_ <= (tol))) {std::stringstream details; details << testname << " Expected "<<(expected)<<", found "<<(found); throwException(__FILE__, __LINE__, details.str());}};
#define ASSERT_EQUAL_VEC_MOD(expected, found, tol, testname) {double _norm_ = std::sqrt(expected.dot(expected)); double _scale_ = _norm_ > 1.0 ? _norm_ : 1.0; if ((std::abs((expected[0])-(found[0]))/_scale_ > (tol)) || (std::abs((expected[1])-(found[1]))/_scale_ > (tol)) || (std::abs((expected[2])-(found[2]))/_scale_ > (tol))) {std::stringstream details; details << testname << " Expected "<<(expected)<<", found "<<(found); throwException(__FILE__, __LINE__, details.str());}};
using namespace OpenMM;
using namespace std;
extern "C" OPENMM_EXPORT void registerAmoebaReferenceKernelFactories();
const double TOL = 1e-4;
// print the energy and forces out, in AKMA units, to allow comparison with TINKER
static void printEnergyAndForces(double energy, vector<Vec3> &forces){
size_t natoms = forces.size();
double sf = 1.0;
std::cout << "Energy (SI):" << std::setw(20) << std::setprecision(10) << energy << std::endl;
std::cout << "Forces (SI):" << std::endl;
for(int i = 0; i < natoms; ++i){
std::cout << i+1 << "\t" << std::setw(20) << std::setprecision(10) << forces[i][0]*sf <<
std::setw(20) << std::setprecision(10) << forces[i][1]*sf <<
std::setw(20) << std::setprecision(10) << forces[i][2]*sf << std::endl;
}
sf = -OpenMM::KcalPerKJ/10.0;
std::cout << "Energy (AKMA):" << std::setw(20) << std::setprecision(10) << energy*OpenMM::KcalPerKJ << std::endl;
std::cout << "Forces (AKMA):" << std::endl;
for(int i = 0; i < natoms; ++i){
std::cout << i+1 << "\t" << std::setw(20) << std::setprecision(10) << forces[i][0]*sf <<
std::setw(20) << std::setprecision(10) << forces[i][1]*sf <<
std::setw(20) << std::setprecision(10) << forces[i][2]*sf << std::endl;
}
}
// compare forces and energies
static void compareForcesEnergy(std::string& testName, double expectedEnergy, double energy,
const std::vector<Vec3>& expectedForces,
const std::vector<Vec3>& forces, double tolerance) {
for (unsigned int ii = 0; ii < forces.size(); ii++) {
ASSERT_EQUAL_VEC_MOD(expectedForces[ii], forces[ii], tolerance, testName);
}
ASSERT_EQUAL_TOL_MOD(expectedEnergy, energy, tolerance, testName);
}
// compare relative differences in force norms and energies
static void compareForceNormsEnergy(std::string& testName, double expectedEnergy, double energy,
std::vector<Vec3>& expectedForces,
const std::vector<Vec3>& forces, double tolerance) {
for (unsigned int ii = 0; ii < forces.size(); ii++) {
double expectedNorm = sqrt(expectedForces[ii][0]*expectedForces[ii][0] +
expectedForces[ii][1]*expectedForces[ii][1] +
expectedForces[ii][2]*expectedForces[ii][2]);
double norm = sqrt(forces[ii][0]*forces[ii][0] + forces[ii][1]*forces[ii][1] + forces[ii][2]*forces[ii][2]);
double absDiff = fabs(norm - expectedNorm);
double relDiff = 2.0*absDiff/(fabs(norm) + fabs(expectedNorm) + 1.0e-08);
if (relDiff > tolerance && absDiff > 0.001) {
std::stringstream details;
details << testName << "Relative difference in norms " << relDiff << " larger than allowed tolerance at particle=" << ii;
details << ": norms=" << norm << " expected norm=" << expectedNorm;
throwException(__FILE__, __LINE__, details.str());
}
}
double energyAbsDiff = fabs(expectedEnergy - energy);
double energyRelDiff = 2.0*energyAbsDiff/(fabs(expectedEnergy) + fabs(energy) + 1.0e-08);
if (energyRelDiff > tolerance) {
std::stringstream details;
details << testName << "Relative difference in energies " << energyRelDiff << " larger than allowed tolerance.";
details << "Energies=" << energy << " expected energy=" << expectedEnergy;
throwException(__FILE__, __LINE__, details.str());
}
}
vector<Vec3> setupWaterDimer(System& system, AmoebaMultipoleForce* amoebaMultipoleForce, bool use_pol_groups) {
const int NATOMS = 6;
const char* atom_types[NATOMS] = {"O", "H1", "H2", "O", "H1", "H2"};
const double coords[NATOMS][3] = {
{ 2.000000, 2.000000, 2.000000},
{ 2.500000, 2.000000, 3.000000},
{ 1.500000, 2.000000, 3.000000},
{ 0.000000, 0.000000, 0.000000},
{ 0.500000, 0.000000, 1.000000},
{ -0.500000, 0.000000, 1.000000}
};
std::map < std::string, double > tholemap;
std::map < std::string, double > polarmap;
std::map < std::string, double > chargemap;
std::map < std::string, std::vector<double> > dipolemap;
std::map < std::string, std::vector<double> > quadrupolemap;
std::map < std::string, AmoebaMultipoleForce::MultipoleAxisTypes > axesmap;
std::map < std::string, std::vector<int> > anchormap;
std::map < std::string, double > massmap;
std::map < std::string, std::vector<int> > polgrpmap;
std::map < std::string, std::vector<int> > cov12map;
std::map < std::string, std::vector<int> > cov13map;
axesmap["O"] = AmoebaMultipoleForce::Bisector;
axesmap["H1"] = AmoebaMultipoleForce::ZThenX;
axesmap["H2"] = AmoebaMultipoleForce::ZThenX;
chargemap["O"] = -0.51966;
chargemap["H1"] = 0.25983;
chargemap["H2"] = 0.25983;
int oanc[3] = {1, 2, 0};
int h1anc[3] = {-1, 1, 0};
int h2anc[3] = {-2, -1, 0};
std::vector<int> oancv(&oanc[0], &oanc[3]);
std::vector<int> h1ancv(&h1anc[0], &h1anc[3]);
std::vector<int> h2ancv(&h2anc[0], &h2anc[3]);
anchormap["O"] = oancv;
anchormap["H1"] = h1ancv;
anchormap["H2"] = h2ancv;
double od[3] = {0.0, 0.0, 0.00755612136146};
double hd[3] = {-0.00204209484795, 0.0, -0.00307875299958};
std::vector<double> odv(&od[0], &od[3]);
std::vector<double> hdv(&hd[0], &hd[3]);
dipolemap["O"] = odv;
dipolemap["H1"] = hdv;
dipolemap["H2"] = hdv;
double oq[9] = {0.000354030721139, 0.0, 0.0,
0.0, -0.000390257077096, 0.0,
0.0, 0.0, 3.62263559571e-05};
double hq[9] = {-3.42848248983e-05, 0.0, -1.89485963908e-06,
0.0, -0.000100240875193, 0.0,
-1.89485963908e-06, 0.0, 0.000134525700091};
std::vector<double> oqv(&oq[0], &oq[9]);
std::vector<double> hqv(&hq[0], &hq[9]);
quadrupolemap["O"] = oqv;
quadrupolemap["H1"] = hqv;
quadrupolemap["H2"] = hqv;
polarmap["O"] = 0.3069876538;
polarmap["H1"] = 0.2813500172;
polarmap["H2"] = 0.2813500172;
polarmap["O"] = 0.000837;
polarmap["H1"] = 0.000496;
polarmap["H2"] = 0.000496;
tholemap["O"] = 0.3900;
tholemap["H1"] = 0.3900;
tholemap["H2"] = 0.3900;
massmap["O"] = 15.999;
massmap["H1"] = 1.0080000;
massmap["H2"] = 1.0080000;
int opg[3] = {0,1,2};
int h1pg[3] = {-1,0,1};
int h2pg[3] = {-2,-1,0};
std::vector<int> opgv(&opg[0], &opg[3]);
std::vector<int> h1pgv(&h1pg[0], &h1pg[3]);
std::vector<int> h2pgv(&h2pg[0], &h2pg[3]);
if(!use_pol_groups){
opgv.clear();
h1pgv.clear();
h2pgv.clear();
}
polgrpmap["O"] = opgv;
polgrpmap["H1"] = h1pgv;
polgrpmap["H2"] = h2pgv;
int cov12o[2] = {1,2};
int cov12h1[1] = {-1};
int cov12h2[1] = {-2};
std::vector<int> cov12ov(&cov12o[0], &cov12o[2]);
std::vector<int> cov12h1v(&cov12h1[0], &cov12h1[1]);
std::vector<int> cov12h2v(&cov12h2[0], &cov12h2[1]);
cov12map["O"] = cov12ov;
cov12map["H1"] = cov12h1v;
cov12map["H2"] = cov12h2v;
int cov13h1[1] = {1};
int cov13h2[1] = {-1};
std::vector<int> cov13h1v(&cov13h1[0], &cov13h1[1]);
std::vector<int> cov13h2v(&cov13h2[0], &cov13h2[1]);
cov13map["O"] = std::vector<int>();
cov13map["H1"] = cov13h1v;
cov13map["H2"] = cov13h2v;
std::vector<Vec3> positions(NATOMS);
for(int atom = 0; atom < NATOMS; ++atom){
const char* element = atom_types[atom];
double damp = polarmap[element];
double alpha = pow(damp, 1.0/6.0);
int atomz = atom + anchormap[element][0];
int atomx = atom + anchormap[element][1];
int atomy = anchormap[element][2]==0 ? -1 : atom + anchormap[element][2];
amoebaMultipoleForce->addMultipole(chargemap[element], dipolemap[element], quadrupolemap[element],
axesmap[element], atomz, atomx, atomy, tholemap[element], alpha, damp);
system.addParticle(massmap[element]);
double offset =0.0;
positions[atom] = Vec3(coords[atom][0]+offset, coords[atom][1]+offset, coords[atom][2]+offset)*OpenMM::NmPerAngstrom;
// Polarization groups
std::vector<int> tmppol;
std::vector<int>& polgrps = polgrpmap[element];
for(int i=0; i < polgrps.size(); ++i)
tmppol.push_back(polgrps[i]+atom);
if(!tmppol.empty())
amoebaMultipoleForce->setCovalentMap(atom, AmoebaMultipoleForce::PolarizationCovalent11, tmppol);
// 1-2 covalent groups
std::vector<int> tmp12;
std::vector<int>& cov12s = cov12map[element];
for(int i=0; i < cov12s.size(); ++i)
tmp12.push_back(cov12s[i]+atom);
if(!tmp12.empty())
amoebaMultipoleForce->setCovalentMap(atom, AmoebaMultipoleForce::Covalent12, tmp12);
// 1-3 covalent groups
std::vector<int> tmp13;
std::vector<int>& cov13s = cov13map[element];
for(int i=0; i < cov13s.size(); ++i)
tmp13.push_back(cov13s[i]+atom);
if(!tmp13.empty())
amoebaMultipoleForce->setCovalentMap(atom, AmoebaMultipoleForce::Covalent13, tmp13);
}
system.addForce(amoebaMultipoleForce);
return positions;
}
static void check_finite_differences(vector<Vec3> analytic_forces, Context &context, vector<Vec3> positions)
{
// Take a small step in the direction of the energy gradient and see whether the potential energy changes by the expected amount.
double norm = 0.0;
for (auto& f : analytic_forces)
norm += f.dot(f);
norm = std::sqrt(norm);
const double stepSize = 1e-3;
double step = 0.5*stepSize/norm;
vector<Vec3> positions2(analytic_forces.size()), positions3(analytic_forces.size());
for (int i = 0; i < (int) positions.size(); ++i) {
Vec3 p = positions[i];
Vec3 f = analytic_forces[i];
positions2[i] = Vec3(p[0]-f[0]*step, p[1]-f[1]*step, p[2]-f[2]*step);
positions3[i] = Vec3(p[0]+f[0]*step, p[1]+f[1]*step, p[2]+f[2]*step);
}
context.setPositions(positions2);
State state2 = context.getState(State::Energy);
context.setPositions(positions3);
State state3 = context.getState(State::Energy);
ASSERT_EQUAL_TOL(norm, (state2.getPotentialEnergy()-state3.getPotentialEnergy())/stepSize, 1e-4);
}
static void testWaterDimerTriclinicPME() {
std::string testName = "testWaterDimerTriclinicPME";
System system;
AmoebaMultipoleForce* amoebaMultipoleForce = new AmoebaMultipoleForce();;
vector<Vec3> coords = setupWaterDimer(system, amoebaMultipoleForce, true);
system.setDefaultPeriodicBoxVectors(Vec3(2.0, 0.0, 0.0),
Vec3(0.2, 2.0, 0.0),
Vec3(0.1, 0.5, 2.0));
amoebaMultipoleForce->setNonbondedMethod(AmoebaMultipoleForce::PME);
amoebaMultipoleForce->setPolarizationType(AmoebaMultipoleForce::Extrapolated);
std::vector<double> coefs;
coefs.push_back(0.0); // The mu_0 coefficient
coefs.push_back(-0.3); // The mu_1 coefficient
coefs.push_back(0.0); // The mu_2 coefficient
coefs.push_back(1.3); // The mu_3 coefficient
amoebaMultipoleForce->setExtrapolationCoefficients(coefs);
amoebaMultipoleForce->setCutoffDistance(9.0*OpenMM::NmPerAngstrom);
amoebaMultipoleForce->setAEwald(4);
amoebaMultipoleForce->setEwaldErrorTolerance(1.0e-06);
std::vector<int> pmeGridDimension(3);
pmeGridDimension[0] = pmeGridDimension[1] = pmeGridDimension[2] = 64;
amoebaMultipoleForce->setPmeGridDimensions(pmeGridDimension);
LangevinIntegrator integrator(0.0, 0.1, 0.01);
Context context(system, integrator, Platform::getPlatformByName("Reference"));
context.setPositions(coords);
OpenMM::State state = context.getState(State::Forces | State::Energy);
std::vector<Vec3> forces = state.getForces();
double energy = state.getPotentialEnergy();
// printEnergyAndForces(energy, forces);
double expectedEnergy = -1.945797427;
std::vector<Vec3> expectedForces(forces.size());
expectedForces[0] = Vec3( -131.1099603, -187.2725558, 36.94657685);
expectedForces[1] = Vec3( 38.6397841, 2.410997985, 8.008437937);
expectedForces[2] = Vec3( 38.69034185, 117.5018257, 32.43097836);
expectedForces[3] = Vec3( -117.3212339, -102.3366145, -30.50621066);
expectedForces[4] = Vec3( 124.8343077, 169.7729804, -24.10742414);
expectedForces[5] = Vec3( 46.26244074, -0.07194110719, -22.77727325);
double tolerance = 1.0e-04;
compareForcesEnergy(testName, expectedEnergy, energy, expectedForces, forces, tolerance);
check_finite_differences(forces, context, coords);
}
static void testWaterDimerTriclinicPMENoPolGroups() {
std::string testName = "testWaterDimerTriclinicPMENoPolGroups";
System system;
AmoebaMultipoleForce* amoebaMultipoleForce = new AmoebaMultipoleForce();;
vector<Vec3> coords = setupWaterDimer(system, amoebaMultipoleForce, false);
system.setDefaultPeriodicBoxVectors(Vec3(2.0, 0.0, 0.0),
Vec3(0.2, 2.0, 0.0),
Vec3(0.1, 0.5, 2.0));
amoebaMultipoleForce->setNonbondedMethod(AmoebaMultipoleForce::PME);
amoebaMultipoleForce->setPolarizationType(AmoebaMultipoleForce::Extrapolated);
std::vector<double> coefs;
coefs.push_back(0.0); // The mu_0 coefficient
coefs.push_back(-0.3); // The mu_1 coefficient
coefs.push_back(0.0); // The mu_2 coefficient
coefs.push_back(1.3); // The mu_3 coefficient
amoebaMultipoleForce->setExtrapolationCoefficients(coefs);
amoebaMultipoleForce->setCutoffDistance(9.0*OpenMM::NmPerAngstrom);
amoebaMultipoleForce->setAEwald(4);
amoebaMultipoleForce->setEwaldErrorTolerance(1.0e-06);
std::vector<int> pmeGridDimension(3);
pmeGridDimension[0] = pmeGridDimension[1] = pmeGridDimension[2] = 64;
amoebaMultipoleForce->setPmeGridDimensions(pmeGridDimension);
LangevinIntegrator integrator(0.0, 0.1, 0.01);
Context context(system, integrator, Platform::getPlatformByName("Reference"));
context.setPositions(coords);
OpenMM::State state = context.getState(State::Forces | State::Energy);
std::vector<Vec3> forces = state.getForces();
double energy = state.getPotentialEnergy();
// printEnergyAndForces(energy, forces);
double expectedEnergy = -1.840068409;
std::vector<Vec3> expectedForces(forces.size());
expectedForces[0] = Vec3( -69.85154559, -104.2092334, 3.586495334);
expectedForces[1] = Vec3( 19.50350452, -14.5844519, 9.400418341);
expectedForces[2] = Vec3( 16.75641493, 75.15006506, 19.14553199);
expectedForces[3] = Vec3( -67.24268213, -47.39994175, -18.81277222);
expectedForces[4] = Vec3( 75.15808251, 110.6109313, 4.355432435);
expectedForces[5] = Vec3( 25.67255306, -19.56378113, -17.68217953);
double tolerance = 1.0e-04;
compareForcesEnergy(testName, expectedEnergy, energy, expectedForces, forces, tolerance);
check_finite_differences(forces, context, coords);
}
static void testWaterDimerNoCutoff() {
std::string testName = "testWaterDimerNoCutoff";
System system;
AmoebaMultipoleForce* amoebaMultipoleForce = new AmoebaMultipoleForce();;
vector<Vec3> coords = setupWaterDimer(system, amoebaMultipoleForce, true);
amoebaMultipoleForce->setNonbondedMethod(AmoebaMultipoleForce::NoCutoff);
amoebaMultipoleForce->setPolarizationType(AmoebaMultipoleForce::Extrapolated);
std::vector<double> coefs;
coefs.push_back(0.0); // The mu_0 coefficient
coefs.push_back(-0.3); // The mu_1 coefficient
coefs.push_back(0.0); // The mu_2 coefficient
coefs.push_back(1.3); // The mu_3 coefficient
amoebaMultipoleForce->setExtrapolationCoefficients(coefs);
LangevinIntegrator integrator(0.0, 0.1, 0.01);
Context context(system, integrator, Platform::getPlatformByName("Reference"));
context.setPositions(coords);
OpenMM::State state = context.getState(State::Forces | State::Energy);
std::vector<Vec3> forces = state.getForces();
double energy = state.getPotentialEnergy();
// printEnergyAndForces(energy, forces);
double expectedEnergy = -1.399194432;
std::vector<Vec3> expectedForces(forces.size());
expectedForces[0] = Vec3( -130.7294487, -186.3287444, 41.40628056);
expectedForces[1] = Vec3( 38.90143386, 2.140957908, 5.564712102);
expectedForces[2] = Vec3( 38.32881448, 117.0462626, 29.90093041);
expectedForces[3] = Vec3( -117.1147396, -101.6981494, -25.55733439);
expectedForces[4] = Vec3( 124.7421318, 169.1571359, -26.38724373);
expectedForces[5] = Vec3( 45.87180816, -0.3174626947, -24.92734495);
double tolerance = 1.0e-04;
compareForcesEnergy(testName, expectedEnergy, energy, expectedForces, forces, tolerance);
check_finite_differences(forces, context, coords);
}
static void testWaterDimerNoCutoffNoPolGroups() {
std::string testName = "testWaterDimerNoCutoffNoPolGroups";
System system;
AmoebaMultipoleForce* amoebaMultipoleForce = new AmoebaMultipoleForce();;
vector<Vec3> coords = setupWaterDimer(system, amoebaMultipoleForce, false);
amoebaMultipoleForce->setNonbondedMethod(AmoebaMultipoleForce::NoCutoff);
amoebaMultipoleForce->setPolarizationType(AmoebaMultipoleForce::Extrapolated);
std::vector<double> coefs;
coefs.push_back(0.0); // The mu_0 coefficient
coefs.push_back(-0.3); // The mu_1 coefficient
coefs.push_back(0.0); // The mu_2 coefficient
coefs.push_back(1.3); // The mu_3 coefficient
amoebaMultipoleForce->setExtrapolationCoefficients(coefs);
LangevinIntegrator integrator(0.0, 0.1, 0.01);
Context context(system, integrator, Platform::getPlatformByName("Reference"));
context.setPositions(coords);
OpenMM::State state = context.getState(State::Forces | State::Energy);
std::vector<Vec3> forces = state.getForces();
double energy = state.getPotentialEnergy();
// printEnergyAndForces(energy, forces);
double expectedEnergy = -1.56926564;
std::vector<Vec3> expectedForces(forces.size());
expectedForces[0] = Vec3( -69.623843, -103.7006124, 6.162774255);
expectedForces[1] = Vec3( 19.54326912, -14.69441322, 8.014369439);
expectedForces[2] = Vec3( 16.65441143, 74.88100242, 17.70364405);
expectedForces[3] = Vec3( -67.10049929, -47.08900953, -16.01092086);
expectedForces[4] = Vec3( 74.98800293, 110.2649458, 3.020145768);
expectedForces[5] = Vec3( 25.53865881, -19.66191302, -18.89001266);
double tolerance = 1.0e-04;
compareForcesEnergy(testName, expectedEnergy, energy, expectedForces, forces, tolerance);
check_finite_differences(forces, context, coords);
}
int main(int numberOfArguments, char* argv[]) {
try {
registerAmoebaReferenceKernelFactories();
/*
* Water dimer energy / force tests under various conditions.
*/
// PME, triclinic
testWaterDimerTriclinicPME();
// PME, triclinic, no polarization groups
testWaterDimerTriclinicPMENoPolGroups();
// No cutoff
testWaterDimerNoCutoff();
// No cutoff, no polarization groups
testWaterDimerNoCutoffNoPolGroups();
}
catch(const std::exception& e) {
std::cout << "exception: " << e.what() << std::endl;
std::cout << "FAIL - ERROR. Test failed." << std::endl;
return 1;
}
std::cout << "Done" << std::endl;
return 0;
}
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