/usr/include/liggghts/multisphere_I.h is in libliggghts-dev 3.3.1+repack1-1ubuntu3.
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This is the
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╚══════╝╚═╝ ╚═════╝ ╚═════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚══════╝®
DEM simulation engine, released by
DCS Computing Gmbh, Linz, Austria
http://www.dcs-computing.com, office@dcs-computing.com
LIGGGHTS® is part of CFDEM®project:
http://www.liggghts.com | http://www.cfdem.com
Core developer and main author:
Christoph Kloss, christoph.kloss@dcs-computing.com
LIGGGHTS® is open-source, distributed under the terms of the GNU Public
License, version 2 or later. It is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. You should have
received a copy of the GNU General Public License along with LIGGGHTS®.
If not, see http://www.gnu.org/licenses . See also top-level README
and LICENSE files.
LIGGGHTS® and CFDEM® are registered trade marks of DCS Computing GmbH,
the producer of the LIGGGHTS® software and the CFDEM®coupling software
See http://www.cfdem.com/terms-trademark-policy for details.
-------------------------------------------------------------------------
Contributing author and copyright for this file:
(if not contributing author is listed, this file has been contributed
by the core developer)
Copyright 2012- DCS Computing GmbH, Linz
Copyright 2009-2012 JKU Linz
------------------------------------------------------------------------- */
#ifndef LMP_MULTISPHERE_I_H
#define LMP_MULTISPHERE_I_H
/* ---------------------------------------------------------------------- */
inline double Multisphere::max_r_bound()
{
double max_r_bound = 0.;
for(int i = 0; i < nbody_; i++)
max_r_bound = MathExtraLiggghts::max(max_r_bound,r_bound_(i));
MPI_Max_Scalar(max_r_bound,world);
return max_r_bound;
}
/* ---------------------------------------------------------------------- */
inline void Multisphere::copy_body(int from_local, int to_local)
{
int tag_from = id_(from_local);
customValues_.copyElement(from_local, to_local);
mapArray_[tag_from] = to_local;
}
/* ---------------------------------------------------------------------- */
inline void Multisphere::remove_body(int ilocal)
{
mapArray_[id_(ilocal)] = -1;
if(nbody_ > 1) mapArray_[id_(nbody_-1)] = ilocal;
/*if(ilocal < nbody_-1)
copy_body(nbody_-1,ilocal);*/
customValues_.deleteElement(ilocal);
nbody_--;
}
/* ---------------------------------------------------------------------- */
inline void Multisphere::calc_nbody_all()
{
MPI_Sum_Scalar(nbody_,nbody_all_,world);
}
/* ---------------------------------------------------------------------- */
inline void Multisphere::reset_forces(bool extflag)
{
fcm_.setAll(nbody_,0.);
torquecm_.setAll(nbody_,0.);
if(extflag) dragforce_cm_.setAll(nbody_,0.);
}
/* ---------------------------------------------------------------------- */
inline int Multisphere::calc_n_steps(int, int body, double *p_ref, double *normalvec, double *v_normal)
{
double pos_rel[3],dt,dist_normal;
int ibody,timestep,n_steps;
if(body < 0)
return -1;
ibody = map(body);
timestep = update->ntimestep;
dt = update->dt;
if(ibody < 0)
error->one(FLERR,"Illegal situation in FixMultisphere::calc_n_steps");
if(start_step_(ibody) >= 0)
return (start_step_(ibody) - timestep);
vectorSubtract3D(p_ref,xcm_(ibody),pos_rel);
dist_normal = vectorDot3D(pos_rel,normalvec);
n_steps = static_cast<int>(dist_normal/(vectorMag3D(v_normal)*dt));
start_step_(ibody) = n_steps + timestep;
v_integrate_.set(ibody,v_normal);
return n_steps;
}
/* ---------------------------------------------------------------------- */
inline void Multisphere::release(int iatom,int body,double *v_toInsert,double *omega_toInsert)
{
int ibody;
if(body < 0)
return;
ibody = map(body);
if(ibody < 0)
return;
bigint step = update->ntimestep;
if(start_step_(ibody) >= 0 && step >= start_step_(ibody))
{
// set v and omega
vcm_.set(ibody,v_toInsert);
omega_.set(ibody,omega_toInsert);
start_step_.set(ibody,-1);
}
}
#endif
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