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neigh_bond_kokkos.cpp
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Fri, Apr 4, 04:14

neigh_bond_kokkos.cpp
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/* ----------------------------------------------------------------------
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.
See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */
/* ----------------------------------------------------------------------
Contributing author: Stan Moore (SNL)
------------------------------------------------------------------------- */
#include "neigh_bond_kokkos.h"
#include "atom_kokkos.h"
#include "atom_vec.h"
#include "molecule.h"
#include "force.h"
#include "update.h"
#include "domain_kokkos.h"
#include "output.h"
#include "thermo.h"
#include "memory.h"
#include "error.h"
#include "modify.h"
#include "fix.h"
#include <string.h>
#include "atom_masks.h"
#include "domain.h"
using namespace LAMMPS_NS;
#define BONDDELTA 10000
#define LB_FACTOR 1.5
enum{IGNORE,WARN,ERROR}; // same as thermo.cpp
/* ---------------------------------------------------------------------- */
template<class DeviceType>
NeighBondKokkos<DeviceType>::NeighBondKokkos(LAMMPS *lmp) : Pointers(lmp)
{
MPI_Comm_rank(world,&me);
MPI_Comm_size(world,&nprocs);
execution_space = ExecutionSpaceFromDevice<DeviceType>::space;
datamask_read = EMPTY_MASK;
datamask_modify = EMPTY_MASK;
k_nlist = DAT::tdual_int_scalar("NeighBond:nlist");
d_nlist = k_nlist.view<DeviceType>();
h_nlist = k_nlist.h_view;
k_fail_flag = DAT::tdual_int_scalar("NeighBond:fail_flag");
d_fail_flag = k_fail_flag.view<DeviceType>();
h_fail_flag = k_fail_flag.h_view;
maxbond = 0;
maxangle = 0;
maxdihedral = 0;
maximproper = 0;
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::init_topology_kk() {
atomKK = (AtomKokkos *) atom;
atomKK->sync(Host,BOND_MASK | ANGLE_MASK | DIHEDRAL_MASK | IMPROPER_MASK);
// topology lists
// 1st time allocation of topology lists
if (atom->molecular && atom->nbonds && maxbond == 0) {
if (nprocs == 1) maxbond = atom->nbonds;
else maxbond = static_cast<int> (LB_FACTOR * atom->nbonds / nprocs);
memory->create_kokkos(k_bondlist,neighbor->bondlist,maxbond,3,"neigh:neighbor->bondlist");
}
if (atom->molecular && atom->nangles && maxangle == 0) {
if (nprocs == 1) maxangle = atom->nangles;
else maxangle = static_cast<int> (LB_FACTOR * atom->nangles / nprocs);
memory->create_kokkos(k_anglelist,neighbor->anglelist,maxangle,4,"neigh:neighbor->anglelist");
}
if (atom->molecular && atom->ndihedrals && maxdihedral == 0) {
if (nprocs == 1) maxdihedral = atom->ndihedrals;
else maxdihedral = static_cast<int>
(LB_FACTOR * atom->ndihedrals / nprocs);
memory->create_kokkos(k_dihedrallist,neighbor->dihedrallist,maxdihedral,5,"neigh:neighbor->dihedrallist");
}
if (atom->molecular && atom->nimpropers && maximproper == 0) {
if (nprocs == 1) maximproper = atom->nimpropers;
else maximproper = static_cast<int>
(LB_FACTOR * atom->nimpropers / nprocs);
memory->create_kokkos(k_improperlist,neighbor->improperlist,maximproper,5,"neigh:neighbor->improperlist");
}
// set flags that determine which topology neighboring routines to use
// bonds,etc can only be broken for atom->molecular = 1, not 2
// SHAKE sets bonds and angles negative
// gcmc sets all bonds, angles, etc negative
// bond_quartic sets bonds to 0
// delete_bonds sets all interactions negative
int i,m;
int bond_off = 0;
int angle_off = 0;
for (i = 0; i < modify->nfix; i++)
if ((strcmp(modify->fix[i]->style,"shake") == 0)
|| (strcmp(modify->fix[i]->style,"rattle") == 0))
bond_off = angle_off = 1;
if (force->bond && force->bond_match("quartic")) bond_off = 1;
if (atom->avec->bonds_allow && atom->molecular == 1) {
for (i = 0; i < atom->nlocal; i++) {
if (bond_off) break;
for (m = 0; m < atom->num_bond[i]; m++)
if (atom->bond_type[i][m] <= 0) bond_off = 1;
}
}
if (atom->avec->angles_allow && atom->molecular == 1) {
for (i = 0; i < atom->nlocal; i++) {
if (angle_off) break;
for (m = 0; m < atom->num_angle[i]; m++)
if (atom->angle_type[i][m] <= 0) angle_off = 1;
}
}
int dihedral_off = 0;
if (atom->avec->dihedrals_allow && atom->molecular == 1) {
for (i = 0; i < atom->nlocal; i++) {
if (dihedral_off) break;
for (m = 0; m < atom->num_dihedral[i]; m++)
if (atom->dihedral_type[i][m] <= 0) dihedral_off = 1;
}
}
int improper_off = 0;
if (atom->avec->impropers_allow && atom->molecular == 1) {
for (i = 0; i < atom->nlocal; i++) {
if (improper_off) break;
for (m = 0; m < atom->num_improper[i]; m++)
if (atom->improper_type[i][m] <= 0) improper_off = 1;
}
}
for (i = 0; i < modify->nfix; i++)
if ((strcmp(modify->fix[i]->style,"gcmc") == 0))
bond_off = angle_off = dihedral_off = improper_off = 1;
// sync on/off settings across all procs
int on_or_off = bond_off;
MPI_Allreduce(&on_or_off,&bond_off,1,MPI_INT,MPI_MAX,world);
on_or_off = angle_off;
MPI_Allreduce(&on_or_off,&angle_off,1,MPI_INT,MPI_MAX,world);
on_or_off = dihedral_off;
MPI_Allreduce(&on_or_off,&dihedral_off,1,MPI_INT,MPI_MAX,world);
on_or_off = improper_off;
MPI_Allreduce(&on_or_off,&improper_off,1,MPI_INT,MPI_MAX,world);
// set ptrs to topology build functions
if (atom->molecular == 2) bond_build_kk = &NeighBondKokkos<DeviceType>::bond_template;
else if (bond_off) bond_build_kk = &NeighBondKokkos<DeviceType>::bond_partial;
else bond_build_kk = &NeighBondKokkos<DeviceType>::bond_all;
if (atom->molecular == 2) angle_build_kk = &NeighBondKokkos<DeviceType>::angle_template;
else if (angle_off) angle_build_kk = &NeighBondKokkos<DeviceType>::angle_partial;
else angle_build_kk = &NeighBondKokkos<DeviceType>::angle_all;
if (atom->molecular == 2) dihedral_build_kk = &NeighBondKokkos<DeviceType>::dihedral_template;
else if (dihedral_off) dihedral_build_kk = &NeighBondKokkos<DeviceType>::dihedral_partial;
else dihedral_build_kk = &NeighBondKokkos<DeviceType>::dihedral_all;
if (atom->molecular == 2) improper_build_kk = &NeighBondKokkos<DeviceType>::improper_template;
else if (improper_off) improper_build_kk = &NeighBondKokkos<DeviceType>::improper_partial;
else improper_build_kk = &NeighBondKokkos<DeviceType>::improper_all;
// set topology neighbor list counts to 0
// in case all are turned off but potential is still defined
neighbor->nbondlist = neighbor->nanglelist = neighbor->ndihedrallist = neighbor->nimproperlist = 0;
}
/* ----------------------------------------------------------------------
build all topology neighbor lists every few timesteps
normally built with pair lists, but USER-CUDA separates them
------------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::build_topology_kk()
{
atomKK->sync(execution_space, X_MASK | TAG_MASK);
int nall = atom->nlocal + atom->nghost;
nlocal = atom->nlocal;
x = atomKK->k_x.view<DeviceType>();
tag = atomKK->k_tag.view<DeviceType>();
newton_bond = force->newton_bond;
lostbond = output->thermo->lostbond;
// don't yet have atom_map_kokkos routines, so move data from host to device
if (atom->map_style != 1)
error->all(FLERR,"Must use atom map style array with Kokkos");
int* map_array_host = atom->get_map_array();
int map_size = atom->get_map_size();
k_map_array = DAT::tdual_int_1d("NeighBond:map_array",map_size);
for (int i=0; i<map_size; i++)
k_map_array.h_view[i] = map_array_host[i];
k_map_array.template modify<LMPHostType>();
k_map_array.template sync<DeviceType>();
map_array = k_map_array.view<DeviceType>();
int* sametag_host = atomKK->sametag;
k_sametag = DAT::tdual_int_1d("NeighBond:sametag",nall);
for (int i=0; i<nall; i++)
k_sametag.h_view[i] = sametag_host[i];
k_sametag.template modify<LMPHostType>();
k_sametag.template sync<DeviceType>();
sametag = k_sametag.view<DeviceType>();
if (force->bond) (this->*bond_build_kk)();
if (force->angle) (this->*angle_build_kk)();
if (force->dihedral) (this->*dihedral_build_kk)();
if (force->improper) (this->*improper_build_kk)();
}
/* ---------------------------------------------------------------------- */
// bondlist, anglelist, dihedrallist, improperlist
// no longer store map_array() of the bond partners
// instead store domain->closest_image() of the bond partners of atom I
// this enables distances between list atoms to be calculated
// w/out invoking domain->minimium_image(), e.g. in bond->compute()
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::bond_all()
{
atomKK->sync(execution_space, BOND_MASK);
v_bondlist = k_bondlist.view<DeviceType>();
num_bond = atomKK->k_num_bond.view<DeviceType>();
bond_atom = atomKK->k_bond_atom.view<DeviceType>();
bond_type = atomKK->k_bond_type.view<DeviceType>();
// Cannot grow a Kokkos view in a parallel loop, so
// if the capacity of the list is exceeded, count the size
// needed, reallocate on the host, and then
// repeat the parallel loop again
do {
nmissing = 0;
h_nlist() = 0;
k_nlist.template modify<LMPHostType>();
k_nlist.template sync<DeviceType>();
h_fail_flag() = 0;
k_fail_flag.template modify<LMPHostType>();
k_fail_flag.template sync<DeviceType>();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondBondAll>(0,nlocal),*this,nmissing);
DeviceType::fence();
k_nlist.template modify<DeviceType>();
k_nlist.template sync<LMPHostType>();
neighbor->nbondlist = h_nlist();
k_fail_flag.template modify<DeviceType>();
k_fail_flag.template sync<LMPHostType>();
if (h_fail_flag()) {
maxbond = neighbor->nbondlist + BONDDELTA;
memory->grow_kokkos(k_bondlist,neighbor->bondlist,maxbond,3,"neighbor:neighbor->bondlist");
v_bondlist = k_bondlist.view<DeviceType>();
}
} while (h_fail_flag());
if (nmissing && lostbond == ERROR) {
char str[128];
sprintf(str,"Bond atoms missing on proc %d at step " BIGINT_FORMAT,
me,update->ntimestep);
error->one(FLERR,str);
}
if (neighbor->cluster_check) bond_check();
if (lostbond == IGNORE) return;
int all;
MPI_Allreduce(&nmissing,&all,1,MPI_INT,MPI_SUM,world);
if (all) {
char str[128];
sprintf(str,
"Bond atoms missing at step " BIGINT_FORMAT,update->ntimestep);
if (me == 0) error->warning(FLERR,str);
}
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondBondAll, const int &i, int &nmissing) const {
for (int m = 0; m < num_bond[i]; m++) {
int atom1 = map_array(bond_atom(i,m));
if (atom1 == -1) {
nmissing++;
if (lostbond == ERROR) return;
continue;
}
atom1 = closest_image(i,atom1);
if (newton_bond || i < atom1) {
const int nbondlist = Kokkos::atomic_fetch_add(&d_nlist(),1);
if (nbondlist >= maxbond && !d_fail_flag())
Kokkos::atomic_fetch_add(&d_fail_flag(),1);
if (d_fail_flag()) continue;
v_bondlist(nbondlist,0) = i;
v_bondlist(nbondlist,1) = atom1;
v_bondlist(nbondlist,2) = bond_type(i,m);
}
}
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::bond_template()
{
error->all(FLERR,"Cannot (yet) use molecular templates with Kokkos");
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::bond_partial()
{
atomKK->sync(execution_space, BOND_MASK);
v_bondlist = k_bondlist.view<DeviceType>();
num_bond = atomKK->k_num_bond.view<DeviceType>();
bond_atom = atomKK->k_bond_atom.view<DeviceType>();
bond_type = atomKK->k_bond_type.view<DeviceType>();
// Cannot grow a Kokkos view in a parallel loop, so
// if the capacity of the list is exceeded, count the size
// needed, reallocate on the host, and then
// repeat the parallel loop again
do {
nmissing = 0;
h_nlist() = 0;
k_nlist.template modify<LMPHostType>();
k_nlist.template sync<DeviceType>();
h_fail_flag() = 0;
k_fail_flag.template modify<LMPHostType>();
k_fail_flag.template sync<DeviceType>();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondBondPartial>(0,nlocal),*this,nmissing);
DeviceType::fence();
k_nlist.template modify<DeviceType>();
k_nlist.template sync<LMPHostType>();
neighbor->nbondlist = h_nlist();
k_fail_flag.template modify<DeviceType>();
k_fail_flag.template sync<LMPHostType>();
if (h_fail_flag()) {
maxbond = neighbor->nbondlist + BONDDELTA;
memory->grow_kokkos(k_bondlist,neighbor->bondlist,maxbond,3,"neighbor:neighbor->bondlist");
v_bondlist = k_bondlist.view<DeviceType>();
}
} while (h_fail_flag());
if (nmissing && lostbond == ERROR) {
char str[128];
sprintf(str,"Bond atoms missing on proc %d at step " BIGINT_FORMAT,
me,update->ntimestep);
error->one(FLERR,str);
}
if (neighbor->cluster_check) bond_check();
if (lostbond == IGNORE) return;
int all;
MPI_Allreduce(&nmissing,&all,1,MPI_INT,MPI_SUM,world);
if (all) {
char str[128];
sprintf(str,
"Bond atoms missing at step " BIGINT_FORMAT,update->ntimestep);
if (me == 0) error->warning(FLERR,str);
}
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondBondPartial, const int &i, int &nmissing) const {
for (int m = 0; m < num_bond[i]; m++) {
if (bond_type(i,m) <= 0) continue;
int atom1 = map_array(bond_atom(i,m));
if (atom1 == -1) {
nmissing++;
if (lostbond == ERROR) return;
continue;
}
atom1 = closest_image(i,atom1);
if (newton_bond || i < atom1) {
const int nbondlist = Kokkos::atomic_fetch_add(&d_nlist(),1);
if (nbondlist >= maxbond && !d_fail_flag())
Kokkos::atomic_fetch_add(&d_fail_flag(),1);
if (d_fail_flag()) continue;
v_bondlist(nbondlist,0) = i;
v_bondlist(nbondlist,1) = atom1;
v_bondlist(nbondlist,2) = bond_type(i,m);
}
}
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::bond_check()
{
int flag = 0;
update_domain_variables();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondBondCheck>(0,neighbor->nbondlist),*this,flag);
DeviceType::fence();
int flag_all;
MPI_Allreduce(&flag,&flag_all,1,MPI_INT,MPI_SUM,world);
if (flag_all) error->all(FLERR,"Bond extent > half of periodic box length");
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondBondCheck, const int &m, int &flag) const {
const int i = v_bondlist(m,0);
const int j = v_bondlist(m,1);
X_FLOAT dxstart,dystart,dzstart;
X_FLOAT dx,dy,dz;
dxstart = dx = x(i,0) - x(j,0);
dystart = dy = x(i,1) - x(j,1);
dzstart = dz = x(i,2) - x(j,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::angle_all()
{
atomKK->sync(execution_space, ANGLE_MASK);
v_anglelist = k_anglelist.view<DeviceType>();
num_angle = atomKK->k_num_angle.view<DeviceType>();
angle_atom1 = atomKK->k_angle_atom1.view<DeviceType>();
angle_atom2 = atomKK->k_angle_atom2.view<DeviceType>();
angle_atom3 = atomKK->k_angle_atom3.view<DeviceType>();
angle_type = atomKK->k_angle_type.view<DeviceType>();
// Cannot grow a Kokkos view in a parallel loop, so
// if the capacity of the list is exceeded, count the size
// needed, reallocate on the host, and then
// repeat the parallel loop again
do {
nmissing = 0;
h_nlist() = 0;
k_nlist.template modify<LMPHostType>();
k_nlist.template sync<DeviceType>();
h_fail_flag() = 0;
k_fail_flag.template modify<LMPHostType>();
k_fail_flag.template sync<DeviceType>();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondAngleAll>(0,nlocal),*this,nmissing);
DeviceType::fence();
k_nlist.template modify<DeviceType>();
k_nlist.template sync<LMPHostType>();
neighbor->nanglelist = h_nlist();
k_fail_flag.template modify<DeviceType>();
k_fail_flag.template sync<LMPHostType>();
if (h_fail_flag()) {
maxangle = neighbor->nanglelist + BONDDELTA;
memory->grow_kokkos(k_anglelist,neighbor->anglelist,maxangle,4,"neighbor:neighbor->anglelist");
v_anglelist = k_anglelist.view<DeviceType>();
}
} while (h_fail_flag());
if (nmissing && lostbond == ERROR) {
char str[128];
sprintf(str,"Angle atoms missing on proc %d at step " BIGINT_FORMAT,
me,update->ntimestep);
error->one(FLERR,str);
}
if (neighbor->cluster_check) angle_check();
if (lostbond == IGNORE) return;
int all;
MPI_Allreduce(&nmissing,&all,1,MPI_INT,MPI_SUM,world);
if (all) {
char str[128];
sprintf(str,
"Angle atoms missing at step " BIGINT_FORMAT,update->ntimestep);
if (me == 0) error->warning(FLERR,str);
}
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondAngleAll, const int &i, int &nmissing) const {
for (int m = 0; m < num_angle[i]; m++) {
int atom1 = map_array(angle_atom1(i,m));
int atom2 = map_array(angle_atom2(i,m));
int atom3 = map_array(angle_atom3(i,m));
if (atom1 == -1 || atom2 == -1 || atom3 == -1) {
nmissing++;
if (lostbond == ERROR) return;
continue;
}
atom1 = closest_image(i,atom1);
atom2 = closest_image(i,atom2);
atom3 = closest_image(i,atom3);
if (newton_bond || (i <= atom1 && i <= atom2 && i <= atom3)) {
const int nanglelist = Kokkos::atomic_fetch_add(&d_nlist(),1);
if (nanglelist >= maxangle && !d_fail_flag())
Kokkos::atomic_fetch_add(&d_fail_flag(),1);
if (d_fail_flag()) continue;
v_anglelist(nanglelist,0) = atom1;
v_anglelist(nanglelist,1) = atom2;
v_anglelist(nanglelist,2) = atom3;
v_anglelist(nanglelist,3) = angle_type(i,m);
}
}
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::angle_template()
{
error->all(FLERR,"Cannot (yet) use molecular templates with Kokkos");
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::angle_partial()
{
atomKK->sync(execution_space, ANGLE_MASK);
v_anglelist = k_anglelist.view<DeviceType>();
num_angle = atomKK->k_num_angle.view<DeviceType>();
angle_atom1 = atomKK->k_angle_atom1.view<DeviceType>();
angle_atom2 = atomKK->k_angle_atom2.view<DeviceType>();
angle_atom3 = atomKK->k_angle_atom3.view<DeviceType>();
angle_type = atomKK->k_angle_type.view<DeviceType>();
// Cannot grow a Kokkos view in a parallel loop, so
// if the capacity of the list is exceeded, count the size
// needed, reallocate on the host, and then
// repeat the parallel loop again
do {
nmissing = 0;
h_nlist() = 0;
k_nlist.template modify<LMPHostType>();
k_nlist.template sync<DeviceType>();
h_fail_flag() = 0;
k_fail_flag.template modify<LMPHostType>();
k_fail_flag.template sync<DeviceType>();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondAnglePartial>(0,nlocal),*this,nmissing);
DeviceType::fence();
k_nlist.template modify<DeviceType>();
k_nlist.template sync<LMPHostType>();
neighbor->nanglelist = h_nlist();
k_fail_flag.template modify<DeviceType>();
k_fail_flag.template sync<LMPHostType>();
if (h_fail_flag()) {
maxangle = neighbor->nanglelist + BONDDELTA;
memory->grow_kokkos(k_anglelist,neighbor->anglelist,maxangle,4,"neighbor:neighbor->anglelist");
v_anglelist = k_anglelist.view<DeviceType>();
}
} while (h_fail_flag());
if (nmissing && lostbond == ERROR) {
char str[128];
sprintf(str,"Angle atoms missing on proc %d at step " BIGINT_FORMAT,
me,update->ntimestep);
error->one(FLERR,str);
}
if (neighbor->cluster_check) angle_check();
if (lostbond == IGNORE) return;
int all;
MPI_Allreduce(&nmissing,&all,1,MPI_INT,MPI_SUM,world);
if (all) {
char str[128];
sprintf(str,
"Angle atoms missing at step " BIGINT_FORMAT,update->ntimestep);
if (me == 0) error->warning(FLERR,str);
}
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondAnglePartial, const int &i, int &nmissing) const {
for (int m = 0; m < num_angle[i]; m++) {
if (angle_type(i,m) <= 0) continue;
int atom1 = map_array(angle_atom1(i,m));
int atom2 = map_array(angle_atom2(i,m));
int atom3 = map_array(angle_atom3(i,m));
if (atom1 == -1 || atom2 == -1 || atom3 == -1) {
nmissing++;
if (lostbond == ERROR) return;
continue;
}
atom1 = closest_image(i,atom1);
atom2 = closest_image(i,atom2);
atom3 = closest_image(i,atom3);
if (newton_bond || (i <= atom1 && i <= atom2 && i <= atom3)) {
const int nanglelist = Kokkos::atomic_fetch_add(&d_nlist(),1);
if (nanglelist >= maxangle && !d_fail_flag())
Kokkos::atomic_fetch_add(&d_fail_flag(),1);
if (d_fail_flag()) continue;
v_anglelist(nanglelist,0) = atom1;
v_anglelist(nanglelist,1) = atom2;
v_anglelist(nanglelist,2) = atom3;
v_anglelist(nanglelist,3) = angle_type(i,m);
}
}
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::angle_check()
{
int flag = 0;
// check all 3 distances
// in case angle potential computes any of them
update_domain_variables();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondAngleCheck>(0,neighbor->nanglelist),*this,flag);
DeviceType::fence();
int flag_all;
MPI_Allreduce(&flag,&flag_all,1,MPI_INT,MPI_SUM,world);
if (flag_all) error->all(FLERR,"Angle extent > half of periodic box length");
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondAngleCheck, const int &m, int &flag) const {
const int i = v_anglelist(m,0);
const int j = v_anglelist(m,1);
const int k = v_anglelist(m,2);
X_FLOAT dxstart,dystart,dzstart;
X_FLOAT dx,dy,dz;
dxstart = dx = x(i,0) - x(j,0);
dystart = dy = x(i,1) - x(j,1);
dzstart = dz = x(i,2) - x(j,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
dxstart = dx = x(i,0) - x(k,0);
dystart = dy = x(i,1) - x(k,1);
dzstart = dz = x(i,2) - x(k,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
dxstart = dx = x(j,0) - x(k,0);
dystart = dy = x(j,1) - x(k,1);
dzstart = dz = x(j,2) - x(k,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::dihedral_all()
{
atomKK->sync(execution_space, DIHEDRAL_MASK);
v_dihedrallist = k_dihedrallist.view<DeviceType>();
num_dihedral = atomKK->k_num_dihedral.view<DeviceType>();
dihedral_atom1 = atomKK->k_dihedral_atom1.view<DeviceType>();
dihedral_atom2 = atomKK->k_dihedral_atom2.view<DeviceType>();
dihedral_atom3 = atomKK->k_dihedral_atom3.view<DeviceType>();
dihedral_atom4 = atomKK->k_dihedral_atom4.view<DeviceType>();
dihedral_type = atomKK->k_dihedral_type.view<DeviceType>();
// Cannot grow a Kokkos view in a parallel loop, so
// if the capacity of the list is exceeded, count the size
// needed, reallocate on the host, and then
// repeat the parallel loop again
do {
nmissing = 0;
h_nlist() = 0;
k_nlist.template modify<LMPHostType>();
k_nlist.template sync<DeviceType>();
h_fail_flag() = 0;
k_fail_flag.template modify<LMPHostType>();
k_fail_flag.template sync<DeviceType>();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondDihedralAll>(0,nlocal),*this,nmissing);
DeviceType::fence();
k_nlist.template modify<DeviceType>();
k_nlist.template sync<LMPHostType>();
neighbor->ndihedrallist = h_nlist();
k_fail_flag.template modify<DeviceType>();
k_fail_flag.template sync<LMPHostType>();
if (h_fail_flag()) {
maxdihedral = neighbor->ndihedrallist + BONDDELTA;
memory->grow_kokkos(k_dihedrallist,neighbor->dihedrallist,maxdihedral,5,"neighbor:neighbor->dihedrallist");
v_dihedrallist = k_dihedrallist.view<DeviceType>();
}
} while (h_fail_flag());
if (nmissing && lostbond == ERROR) {
char str[128];
sprintf(str,"Dihedral atoms missing on proc %d at step " BIGINT_FORMAT,
me,update->ntimestep);
error->one(FLERR,str);
}
if (neighbor->cluster_check) dihedral_check(neighbor->ndihedrallist,v_dihedrallist);
if (lostbond == IGNORE) return;
int all;
MPI_Allreduce(&nmissing,&all,1,MPI_INT,MPI_SUM,world);
if (all) {
char str[128];
sprintf(str,
"Dihedral atoms missing at step " BIGINT_FORMAT,update->ntimestep);
if (me == 0) error->warning(FLERR,str);
}
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondDihedralAll, const int &i, int &nmissing) const {
for (int m = 0; m < num_dihedral[i]; m++) {
int atom1 = map_array(dihedral_atom1(i,m));
int atom2 = map_array(dihedral_atom2(i,m));
int atom3 = map_array(dihedral_atom3(i,m));
int atom4 = map_array(dihedral_atom4(i,m));
if (atom1 == -1 || atom2 == -1 || atom3 == -1 || atom4 == -1) {
nmissing++;
if (lostbond == ERROR) return;
continue;
}
atom1 = closest_image(i,atom1);
atom2 = closest_image(i,atom2);
atom3 = closest_image(i,atom3);
atom4 = closest_image(i,atom4);
if (newton_bond ||
(i <= atom1 && i <= atom2 && i <= atom3 && i <= atom4)) {
const int ndihedrallist = Kokkos::atomic_fetch_add(&d_nlist(),1);
if (ndihedrallist >= maxdihedral && !d_fail_flag())
Kokkos::atomic_fetch_add(&d_fail_flag(),1);
if (d_fail_flag()) continue;
v_dihedrallist(ndihedrallist,0) = atom1;
v_dihedrallist(ndihedrallist,1) = atom2;
v_dihedrallist(ndihedrallist,2) = atom3;
v_dihedrallist(ndihedrallist,3) = atom4;
v_dihedrallist(ndihedrallist,4) = dihedral_type(i,m);
}
}
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::dihedral_template()
{
error->all(FLERR,"Cannot (yet) use molecular templates with Kokkos");
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::dihedral_partial()
{
atomKK->sync(execution_space, DIHEDRAL_MASK);
v_dihedrallist = k_dihedrallist.view<DeviceType>();
num_dihedral = atomKK->k_num_dihedral.view<DeviceType>();
dihedral_atom1 = atomKK->k_dihedral_atom1.view<DeviceType>();
dihedral_atom2 = atomKK->k_dihedral_atom2.view<DeviceType>();
dihedral_atom3 = atomKK->k_dihedral_atom3.view<DeviceType>();
dihedral_atom4 = atomKK->k_dihedral_atom4.view<DeviceType>();
dihedral_type = atomKK->k_dihedral_type.view<DeviceType>();
// Cannot grow a Kokkos view in a parallel loop, so
// if the capacity of the list is exceeded, count the size
// needed, reallocate on the host, and then
// repeat the parallel loop again
do {
nmissing = 0;
h_nlist() = 0;
k_nlist.template modify<LMPHostType>();
k_nlist.template sync<DeviceType>();
h_fail_flag() = 0;
k_fail_flag.template modify<LMPHostType>();
k_fail_flag.template sync<DeviceType>();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondDihedralPartial>(0,nlocal),*this,nmissing);
DeviceType::fence();
k_nlist.template modify<DeviceType>();
k_nlist.template sync<LMPHostType>();
neighbor->ndihedrallist = h_nlist();
k_fail_flag.template modify<DeviceType>();
k_fail_flag.template sync<LMPHostType>();
if (h_fail_flag()) {
maxdihedral = neighbor->ndihedrallist + BONDDELTA;
memory->grow_kokkos(k_dihedrallist,neighbor->dihedrallist,maxdihedral,5,"neighbor:neighbor->dihedrallist");
v_dihedrallist = k_dihedrallist.view<DeviceType>();
}
} while (h_fail_flag());
if (nmissing && lostbond == ERROR) {
char str[128];
sprintf(str,"Dihedral atoms missing on proc %d at step " BIGINT_FORMAT,
me,update->ntimestep);
error->one(FLERR,str);
}
if (neighbor->cluster_check) dihedral_check(neighbor->ndihedrallist,v_dihedrallist);
if (lostbond == IGNORE) return;
int all;
MPI_Allreduce(&nmissing,&all,1,MPI_INT,MPI_SUM,world);
if (all) {
char str[128];
sprintf(str,
"Dihedral atoms missing at step " BIGINT_FORMAT,update->ntimestep);
if (me == 0) error->warning(FLERR,str);
}
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondDihedralPartial, const int &i, int &nmissing) const {
for (int m = 0; m < num_dihedral[i]; m++) {
if (dihedral_type(i,m) <= 0) continue;
int atom1 = map_array(dihedral_atom1(i,m));
int atom2 = map_array(dihedral_atom2(i,m));
int atom3 = map_array(dihedral_atom3(i,m));
int atom4 = map_array(dihedral_atom4(i,m));
if (atom1 == -1 || atom2 == -1 || atom3 == -1 || atom4 == -1) {
nmissing++;
if (lostbond == ERROR) return;
continue;
}
atom1 = closest_image(i,atom1);
atom2 = closest_image(i,atom2);
atom3 = closest_image(i,atom3);
atom4 = closest_image(i,atom4);
if (newton_bond ||
(i <= atom1 && i <= atom2 && i <= atom3 && i <= atom4)) {
const int ndihedrallist = Kokkos::atomic_fetch_add(&d_nlist(),1);
if (ndihedrallist >= maxdihedral && !d_fail_flag())
Kokkos::atomic_fetch_add(&d_fail_flag(),1);
if (d_fail_flag()) continue;
v_dihedrallist(ndihedrallist,0) = atom1;
v_dihedrallist(ndihedrallist,1) = atom2;
v_dihedrallist(ndihedrallist,2) = atom3;
v_dihedrallist(ndihedrallist,3) = atom4;
v_dihedrallist(ndihedrallist,4) = dihedral_type(i,m);
}
}
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::dihedral_check(int nlist, typename AT::t_int_2d list_in)
{
list = list_in;
int flag = 0;
// check all 6 distances
// in case dihedral/improper potential computes any of them
update_domain_variables();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondDihedralCheck>(0,nlist),*this,flag);
DeviceType::fence();
int flag_all;
MPI_Allreduce(&flag,&flag_all,1,MPI_INT,MPI_SUM,world);
if (flag_all)
error->all(FLERR,"Dihedral/improper extent > half of periodic box length");
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondDihedralCheck, const int &m, int &flag) const {
const int i = list(m,0);
const int j = list(m,1);
const int k = list(m,2);
const int l = list(m,3);
X_FLOAT dxstart,dystart,dzstart;
X_FLOAT dx,dy,dz;
dxstart = dx = x(i,0) - x(j,0);
dystart = dy = x(i,1) - x(j,1);
dzstart = dz = x(i,2) - x(j,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
dxstart = dx = x(i,0) - x(k,0);
dystart = dy = x(i,1) - x(k,1);
dzstart = dz = x(i,2) - x(k,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
dxstart = dx = x(i,0) - x(l,0);
dystart = dy = x(i,1) - x(l,1);
dzstart = dz = x(i,2) - x(l,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
dxstart = dx = x(j,0) - x(k,0);
dystart = dy = x(j,1) - x(k,1);
dzstart = dz = x(j,2) - x(k,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
dxstart = dx = x(j,0) - x(l,0);
dystart = dy = x(j,1) - x(l,1);
dzstart = dz = x(j,2) - x(l,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
dxstart = dx = x(k,0) - x(l,0);
dystart = dy = x(k,1) - x(l,1);
dzstart = dz = x(k,2) - x(l,2);
minimum_image(dx,dy,dz);
if (dx != dxstart || dy != dystart || dz != dzstart) flag = 1;
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::improper_all()
{
atomKK->sync(execution_space, IMPROPER_MASK);
v_improperlist = k_improperlist.view<DeviceType>();
num_improper = atomKK->k_num_improper.view<DeviceType>();
improper_atom1 = atomKK->k_improper_atom1.view<DeviceType>();
improper_atom2 = atomKK->k_improper_atom2.view<DeviceType>();
improper_atom3 = atomKK->k_improper_atom3.view<DeviceType>();
improper_atom4 = atomKK->k_improper_atom4.view<DeviceType>();
improper_type = atomKK->k_improper_type.view<DeviceType>();
// Cannot grow a Kokkos view in a parallel loop, so
// if the capacity of the list is exceeded, count the size
// needed, reallocate on the host, and then
// repeat the parallel loop again
do {
nmissing = 0;
h_nlist() = 0;
k_nlist.template modify<LMPHostType>();
k_nlist.template sync<DeviceType>();
h_fail_flag() = 0;
k_fail_flag.template modify<LMPHostType>();
k_fail_flag.template sync<DeviceType>();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondImproperAll>(0,nlocal),*this,nmissing);
DeviceType::fence();
k_nlist.template modify<DeviceType>();
k_nlist.template sync<LMPHostType>();
neighbor->nimproperlist = h_nlist();
k_fail_flag.template modify<DeviceType>();
k_fail_flag.template sync<LMPHostType>();
if (h_fail_flag()) {
maximproper = neighbor->nimproperlist + BONDDELTA;
memory->grow_kokkos(k_improperlist,neighbor->improperlist,maximproper,5,"neighbor:neighbor->improperlist");
v_improperlist = k_improperlist.view<DeviceType>();
}
} while (h_fail_flag());
if (nmissing && lostbond == ERROR) {
char str[128];
sprintf(str,"Improper atoms missing on proc %d at step " BIGINT_FORMAT,
me,update->ntimestep);
error->one(FLERR,str);
}
if (neighbor->cluster_check) dihedral_check(neighbor->nimproperlist,v_improperlist);
if (lostbond == IGNORE) return;
int all;
MPI_Allreduce(&nmissing,&all,1,MPI_INT,MPI_SUM,world);
if (all) {
char str[128];
sprintf(str,
"Improper atoms missing at step " BIGINT_FORMAT,update->ntimestep);
if (me == 0) error->warning(FLERR,str);
}
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondImproperAll, const int &i, int &nmissing) const {
for (int m = 0; m < num_improper[i]; m++) {
int atom1 = map_array(improper_atom1(i,m));
int atom2 = map_array(improper_atom2(i,m));
int atom3 = map_array(improper_atom3(i,m));
int atom4 = map_array(improper_atom4(i,m));
if (atom1 == -1 || atom2 == -1 || atom3 == -1 || atom4 == -1) {
nmissing++;
if (lostbond == ERROR) return;
continue;
}
atom1 = closest_image(i,atom1);
atom2 = closest_image(i,atom2);
atom3 = closest_image(i,atom3);
atom4 = closest_image(i,atom4);
if (newton_bond ||
(i <= atom1 && i <= atom2 && i <= atom3 && i <= atom4)) {
const int nimproperlist = Kokkos::atomic_fetch_add(&d_nlist(),1);
if (nimproperlist >= maximproper && !d_fail_flag())
Kokkos::atomic_fetch_add(&d_fail_flag(),1);
if (d_fail_flag()) continue;
v_improperlist(nimproperlist,0) = atom1;
v_improperlist(nimproperlist,1) = atom2;
v_improperlist(nimproperlist,2) = atom3;
v_improperlist(nimproperlist,3) = atom4;
v_improperlist(nimproperlist,4) = improper_type(i,m);
}
}
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::improper_template()
{
error->all(FLERR,"Cannot (yet) use molecular templates with Kokkos");
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::improper_partial()
{
atomKK->sync(execution_space, IMPROPER_MASK);
v_improperlist = k_improperlist.view<DeviceType>();
num_improper = atomKK->k_num_improper.view<DeviceType>();
improper_atom1 = atomKK->k_improper_atom1.view<DeviceType>();
improper_atom2 = atomKK->k_improper_atom2.view<DeviceType>();
improper_atom3 = atomKK->k_improper_atom3.view<DeviceType>();
improper_atom4 = atomKK->k_improper_atom4.view<DeviceType>();
improper_type = atomKK->k_improper_type.view<DeviceType>();
// Cannot grow a Kokkos view in a parallel loop, so
// if the capacity of the list is exceeded, count the size
// needed, reallocate on the host, and then
// repeat the parallel loop again
do {
nmissing = 0;
h_nlist() = 0;
k_nlist.template modify<LMPHostType>();
k_nlist.template sync<DeviceType>();
h_fail_flag() = 0;
k_fail_flag.template modify<LMPHostType>();
k_fail_flag.template sync<DeviceType>();
Kokkos::parallel_reduce(Kokkos::RangePolicy<DeviceType, TagNeighBondImproperPartial>(0,nlocal),*this,nmissing);
DeviceType::fence();
k_nlist.template modify<DeviceType>();
k_nlist.template sync<LMPHostType>();
neighbor->nimproperlist = h_nlist();
k_fail_flag.template modify<DeviceType>();
k_fail_flag.template sync<LMPHostType>();
if (h_fail_flag()) {
maximproper = neighbor->nimproperlist + BONDDELTA;
memory->grow_kokkos(k_improperlist,neighbor->improperlist,maximproper,5,"neighbor:neighbor->improperlist");
v_improperlist = k_improperlist.view<DeviceType>();
}
} while (h_fail_flag());
if (nmissing && lostbond == ERROR) {
char str[128];
sprintf(str,"Improper atoms missing on proc %d at step " BIGINT_FORMAT,
me,update->ntimestep);
error->one(FLERR,str);
}
if (neighbor->cluster_check) dihedral_check(neighbor->nimproperlist,v_improperlist);
if (lostbond == IGNORE) return;
int all;
MPI_Allreduce(&nmissing,&all,1,MPI_INT,MPI_SUM,world);
if (all) {
char str[128];
sprintf(str,
"Improper atoms missing at step " BIGINT_FORMAT,update->ntimestep);
if (me == 0) error->warning(FLERR,str);
}
}
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::operator()(TagNeighBondImproperPartial, const int &i, int &nmissing) const {
for (int m = 0; m < num_improper[i]; m++) {
if (improper_type(i,m) <= 0) continue;
int atom1 = map_array(improper_atom1(i,m));
int atom2 = map_array(improper_atom2(i,m));
int atom3 = map_array(improper_atom3(i,m));
int atom4 = map_array(improper_atom4(i,m));
if (atom1 == -1 || atom2 == -1 || atom3 == -1 || atom4 == -1) {
nmissing++;
if (lostbond == ERROR) return;
continue;
}
atom1 = closest_image(i,atom1);
atom2 = closest_image(i,atom2);
atom3 = closest_image(i,atom3);
atom4 = closest_image(i,atom4);
if (newton_bond ||
(i <= atom1 && i <= atom2 && i <= atom3 && i <= atom4)) {
const int nimproperlist = Kokkos::atomic_fetch_add(&d_nlist(),1);
if (nimproperlist >= maximproper && !d_fail_flag())
Kokkos::atomic_fetch_add(&d_fail_flag(),1);
if (d_fail_flag()) continue;
v_improperlist(nimproperlist,0) = atom1;
v_improperlist(nimproperlist,1) = atom2;
v_improperlist(nimproperlist,2) = atom3;
v_improperlist(nimproperlist,3) = atom4;
v_improperlist(nimproperlist,4) = improper_type(i,m);
}
}
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
int NeighBondKokkos<DeviceType>::closest_image(const int i, int j) const
{
if (j < 0) return j;
const X_FLOAT xi0 = x(i,0);
const X_FLOAT xi1 = x(i,1);
const X_FLOAT xi2 = x(i,2);
int closest = j;
X_FLOAT delx = xi0 - x(j,0);
X_FLOAT dely = xi1 - x(j,1);
X_FLOAT delz = xi2 - x(j,2);
X_FLOAT rsqmin = delx*delx + dely*dely + delz*delz;
X_FLOAT rsq;
while (sametag[j] >= 0) {
j = sametag[j];
delx = xi0 - x(j,0);
dely = xi1 - x(j,1);
delz = xi2 - x(j,2);
rsq = delx*delx + dely*dely + delz*delz;
if (rsq < rsqmin) {
rsqmin = rsq;
closest = j;
}
}
return closest;
}
/* ----------------------------------------------------------------------
minimum image convention
use 1/2 of box size as test
for triclinic, also add/subtract tilt factors in other dims as needed
------------------------------------------------------------------------- */
template<class DeviceType>
KOKKOS_INLINE_FUNCTION
void NeighBondKokkos<DeviceType>::minimum_image(X_FLOAT &dx, X_FLOAT &dy, X_FLOAT &dz) const
{
if (triclinic == 0) {
if (xperiodic) {
if (fabs(dx) > xprd_half) {
if (dx < 0.0) dx += xprd;
else dx -= xprd;
}
}
if (yperiodic) {
if (fabs(dy) > yprd_half) {
if (dy < 0.0) dy += yprd;
else dy -= yprd;
}
}
if (zperiodic) {
if (fabs(dz) > zprd_half) {
if (dz < 0.0) dz += zprd;
else dz -= zprd;
}
}
} else {
if (zperiodic) {
if (fabs(dz) > zprd_half) {
if (dz < 0.0) {
dz += zprd;
dy += yz;
dx += xz;
} else {
dz -= zprd;
dy -= yz;
dx -= xz;
}
}
}
if (yperiodic) {
if (fabs(dy) > yprd_half) {
if (dy < 0.0) {
dy += yprd;
dx += xy;
} else {
dy -= yprd;
dx -= xy;
}
}
}
if (xperiodic) {
if (fabs(dx) > xprd_half) {
if (dx < 0.0) dx += xprd;
else dx -= xprd;
}
}
}
}
/* ---------------------------------------------------------------------- */
template<class DeviceType>
void NeighBondKokkos<DeviceType>::update_domain_variables()
{
triclinic = domain->triclinic;
xperiodic = domain->xperiodic;
xprd_half = domain->xprd_half;
xprd = domain->xprd;
yperiodic = domain->yperiodic;
yprd_half = domain->yprd_half;
yprd = domain->yprd;
zperiodic = domain->zperiodic;
zprd_half = domain->zprd_half;
zprd = domain->zprd;
xy = domain->xy;
xz = domain->xz;
yz = domain->yz;
}
/* ---------------------------------------------------------------------- */
template class NeighBondKokkos<LMPDeviceType>;
#ifdef KOKKOS_HAVE_CUDA
template class NeighBondKokkos<LMPHostType>;
#endif

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