/usr/include/liggghts/fix_contact_history_mesh.h is in libliggghts-dev 3.7.0+repack1-1.
This file is owned by root:root, with mode 0o644.
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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:
Christoph Kloss (DCS Computing GmbH, Linz)
Arno Mayrhofer (CFDEMresearch GmbH, Linz)
Copyright 2012- DCS Computing GmbH, Linz
Copyright 2009-2012 JKU Linz
Copyright 2016- CFDEMresearch GmbH, Linz
------------------------------------------------------------------------- */
#ifdef FIX_CLASS
FixStyle(contacthistory/mesh,FixContactHistoryMesh)
#else
#ifndef LMP_FIX_CONTACT_HISTORY_MESH_H
#define LMP_FIX_CONTACT_HISTORY_MESH_H
#include "fix_contact_history.h"
#include "fix_property_atom.h"
#include "my_page.h"
#include <math.h>
#include "vector_liggghts.h"
#include "atom.h"
#include "update.h"
#include "error.h"
#include "tri_mesh.h"
namespace LAMMPS_NS {
class FixContactHistoryMesh : public FixContactHistory {
friend class Neighbor;
friend class PairGran;
public:
FixContactHistoryMesh(class LAMMPS *, int, char **);
~FixContactHistoryMesh();
virtual int setmask();
void init();
void setup_pre_exchange();
void min_setup_pre_exchange();
void pre_exchange();
void setup_pre_force(int dummy);
void setup_pre_neighbor();
void min_setup_pre_force(int dummy);
void pre_force(int dummy);
void min_pre_force(int dummy);
void pre_neighbor();
void grow_arrays(int);
void copy_arrays(int, int, int);
int unpack_exchange(int, double *);
void unpack_restart(int, int);
void write_restart(FILE *fp);
double memory_usage();
// spefific interface for mesh
bool handleContact(int iPart, int idTri, double *&history, bool intersectflag, bool faceflag);
void markAllContacts();
void cleanUpContacts();
void cleanUpContactJumps();
// OMP interface
void resetDeletionPage(int tid);
void markForDeletion(int tid, int ifrom, int ito);
void cleanUpContacts(int ifrom, int ito);
void reset_history();
// return # of contacts
int n_contacts(int & nIntersect);
int n_contacts(int contact_groupbit, int & nIntersect);
int get_partner_idTri(const int i, const int j) const
{ return partner_[i][j]; }
protected:
MyPage<int> *ipage1_; // pages of neighbor tri IDs
MyPage<double> *dpage1_; // pages of contact history with neighbors
MyPage<int> *ipage2_; // pages of neighbor tri IDs
MyPage<double> *dpage2_; // pages of contact history with neighbors
MyPage<bool> ** keeppage_; // pages of deletion flags with neighbors
MyPage<bool> ** intersectpage_; // pages of deletion flags with neighbors
bool **keepflag_;
bool **intersectflag_;
void allocate_pages();
private:
// functions specific for mesh - contact management
bool haveContact(int indexPart, int idTri, double *&history, bool intersectflag);
bool coplanarContactAlready(int indexPart, int idTri);
void checkCoplanarContactHistory(int indexPart, int idTri, double *&history);
void addNewTriContactToExistingParticle(int indexPart, int idTri, double *&history, bool intersectflag);
class TriMesh *mesh_;
class FixNeighlistMesh *fix_neighlist_mesh_;
class FixPropertyAtom* fix_nneighs_;
bool build_neighlist_;
double *swap_;
int numpages_;
void sort_contacts();
void swap(int ilocal,int ineigh, int jneigh, bool keepflag_swap);
};
// *************************************
#include "fix_contact_history_mesh_I.h"
// *************************************
}
#endif
#endif
/* ERROR/WARNING messages:
E: Pair style granular with history requires atoms have IDs
Atoms in the simulation do not have IDs, so history effects
cannot be tracked by the granular pair potential.
E: Too many touching neighbors - boost MAXTOUCH
A granular simulation has too many neighbors touching one atom. The
MAXTOUCH parameter in fix_shear_history.cpp must be set larger and
LAMMPS must be re-built.
*/
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