libliggghts-dev 3.7.0+repack1-1 / usr / include / liggghts / neigh_request.h

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/* ----------------------------------------------------------------------
    This is the

    ██╗     ██╗ ██████╗  ██████╗  ██████╗ ██╗  ██╗████████╗███████╗
    ██║     ██║██╔════╝ ██╔════╝ ██╔════╝ ██║  ██║╚══██╔══╝██╔════╝
    ██║     ██║██║  ███╗██║  ███╗██║  ███╗███████║   ██║   ███████╗
    ██║     ██║██║   ██║██║   ██║██║   ██║██╔══██║   ██║   ╚════██║
    ███████╗██║╚██████╔╝╚██████╔╝╚██████╔╝██║  ██║   ██║   ███████║
    ╚══════╝╚═╝ ╚═════╝  ╚═════╝  ╚═════╝ ╚═╝  ╚═╝   ╚═╝   ╚══════╝®

    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:
    This file is from LAMMPS
    LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
    http://lammps.sandia.gov, Sandia National Laboratories
    Steve Plimpton, sjplimp@sandia.gov

    Copyright (2003) Sandia Corporation.  Under the terms of Contract
    DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
    certain rights in this software.  This software is distributed under
    the GNU General Public License.
------------------------------------------------------------------------- */

#ifndef LMP_NEIGH_REQUEST_H
#define LMP_NEIGH_REQUEST_H

#include "pointers.h"

namespace LAMMPS_NS {

class NeighRequest : protected Pointers {
 public:
  void *requestor;       // class that made request
  int id;                // ID of request
                         // used to track multiple requests from one class

  int64_t pairgran_hashcode; 
                             
  // which class is requesting the list, one flag is 1, others are 0

  int pair;              // set by default
  int fix;
  int compute;
  int command;

  // kind of list requested, one flag is 1, others are 0
  // set by requesting class

  int half;              // 1 if half neigh list (set by default)
  int full;              // 1 if full neigh list

  int gran;              // 1 if granular list
  int granhistory;       // 1 if granular history list

  int respainner;        // 1 if a rRESPA inner list
  int respamiddle;       // 1 if a rRESPA middle list
  int respaouter;        // 1 if a rRESPA outer list

  int half_from_full;    // 1 if half list computed from previous full list

  // 0 if needed every reneighboring during run
  // 1 if occasionally needed by a fix, compute, etc
  // set by requesting class

  int occasional;

  // 0 if use force::newton_pair setting
  // 1 if override with pair newton on
  // 2 if override with pair newton off

  int newton;

  // 0 if user of list wants no encoding of special bond flags and all neighs
  // 1 if user of list wants special bond flags encoded, set by default

  int special;

  // number of auxiliary floating point values to store, 0 if none
  // set by requesting class

  int dnum;

  // 1 if also need neighbors of ghosts

  int ghost;

  // 1 if neighbor list build will be done on GPU

  int cudable;

  // 1 if using multi-threaded neighbor list build

  int omp;

  // set by neighbor and pair_hybrid after all requests are made
  // these settings do not change kind value

  int copy;              // 1 if this list copied from another list

  int skip;              // 1 if this list skips atom types from another list
  int *iskip;            // iskip[i] if atoms of type I are not in list
  int **ijskip;          // ijskip[i][j] if pairs of type I,J are not in list

  int otherlist;         // index of other list to copy or skip from

  // original params by requester
  // stored to compare against in identical() in case Neighbor changes them

  int half_original;
  int half_from_full_original;
  int copy_original;
  int otherlist_original;

  // methods

  NeighRequest(class LAMMPS *);
  ~NeighRequest();
  void archive();
  int identical(NeighRequest *);
  int same_kind(NeighRequest *);
  int same_skip(NeighRequest *);
  void copy_request(NeighRequest *);
};

}

#endif

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