mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-09 23:45:36 +00:00
Examples
This commit is contained in:
Peter Boyle
parent
7163b31a26
commit
40098424c7
@ -1,5 +1,5 @@
|
|||||||
# additional include paths necessary to compile the C++ library
|
# additional include paths necessary to compile the C++ library
|
||||||
SUBDIRS = Grid HMC benchmarks tests
|
SUBDIRS = Grid HMC benchmarks tests examples
|
||||||
|
|
||||||
include $(top_srcdir)/doxygen.inc
|
include $(top_srcdir)/doxygen.inc
|
||||||
|
|
||||||
|
|||||||
@ -815,6 +815,7 @@ AC_CONFIG_FILES(tests/smearing/Makefile)
|
|||||||
AC_CONFIG_FILES(tests/qdpxx/Makefile)
|
AC_CONFIG_FILES(tests/qdpxx/Makefile)
|
||||||
AC_CONFIG_FILES(tests/testu01/Makefile)
|
AC_CONFIG_FILES(tests/testu01/Makefile)
|
||||||
AC_CONFIG_FILES(benchmarks/Makefile)
|
AC_CONFIG_FILES(benchmarks/Makefile)
|
||||||
|
AC_CONFIG_FILES(examples/Makefile)
|
||||||
AC_OUTPUT
|
AC_OUTPUT
|
||||||
|
|
||||||
echo ""
|
echo ""
|
||||||
|
|||||||
395
examples/Example_Laplacian.cc
Normal file
395
examples/Example_Laplacian.cc
Normal file
@ -0,0 +1,395 @@
|
|||||||
|
#include <Grid/Grid.h>
|
||||||
|
using namespace Grid;
|
||||||
|
|
||||||
|
/*
|
||||||
|
/////////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
// Grid/algorithms/SparseMatrix.h: Interface defining what I expect of a general sparse matrix, such as a Fermion action
|
||||||
|
/////////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
template<class Field> class SparseMatrixBase {
|
||||||
|
public:
|
||||||
|
virtual GridBase *Grid(void) =0;
|
||||||
|
|
||||||
|
virtual void M (const Field &in, Field &out)=0;
|
||||||
|
virtual void Mdag (const Field &in, Field &out)=0;
|
||||||
|
virtual void MdagM(const Field &in, Field &out) {
|
||||||
|
Field tmp (in.Grid());
|
||||||
|
M(in,tmp);
|
||||||
|
Mdag(tmp,out);
|
||||||
|
}
|
||||||
|
virtual void Mdiag (const Field &in, Field &out)=0;
|
||||||
|
virtual void Mdir (const Field &in, Field &out,int dir, int disp)=0;
|
||||||
|
virtual void MdirAll (const Field &in, std::vector<Field> &out)=0;
|
||||||
|
};
|
||||||
|
*/
|
||||||
|
|
||||||
|
const std::vector<int> directions ({Xdir,Ydir,Zdir,Xdir,Ydir,Zdir});
|
||||||
|
const std::vector<int> displacements({1,1,1,-1,-1,-1});
|
||||||
|
|
||||||
|
template<class Field> class FreeLaplacianCshift : public SparseMatrixBase<Field>
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
GridBase *grid;
|
||||||
|
FreeLaplacianCshift(GridBase *_grid)
|
||||||
|
{
|
||||||
|
grid=_grid;
|
||||||
|
};
|
||||||
|
virtual GridBase *Grid(void) { return grid; };
|
||||||
|
|
||||||
|
virtual void M (const Field &in, Field &out)
|
||||||
|
{
|
||||||
|
out = Zero();
|
||||||
|
for(int mu=0;mu<Nd-1;mu++) {
|
||||||
|
out = out + Cshift(in,mu,1) + Cshift(in,mu,-1) - 2.0 * in;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
virtual void Mdag (const Field &in, Field &out) { M(in,out);}; // Laplacian is hermitian
|
||||||
|
virtual void Mdiag (const Field &in, Field &out) {assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
virtual void Mdir (const Field &in, Field &out,int dir, int disp){assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
virtual void MdirAll (const Field &in, std::vector<Field> &out) {assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
};
|
||||||
|
|
||||||
|
template<class Gimpl,class Field> class CovariantLaplacianCshift : public SparseMatrixBase<Field>
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
INHERIT_GIMPL_TYPES(Gimpl);
|
||||||
|
|
||||||
|
GridBase *grid;
|
||||||
|
GaugeField U;
|
||||||
|
|
||||||
|
CovariantLaplacianCshift(GaugeField &_U) :
|
||||||
|
grid(_U.Grid()),
|
||||||
|
U(_U) { };
|
||||||
|
|
||||||
|
virtual GridBase *Grid(void) { return grid; };
|
||||||
|
|
||||||
|
virtual void M (const Field &in, Field &out)
|
||||||
|
{
|
||||||
|
out=Zero();
|
||||||
|
for(int mu=0;mu<Nd-1;mu++) {
|
||||||
|
GaugeLinkField Umu = PeekIndex<LorentzIndex>(U, mu); // NB: Inefficent
|
||||||
|
out = out + Gimpl::CovShiftForward(Umu,mu,in);
|
||||||
|
out = out + Gimpl::CovShiftBackward(Umu,mu,in);
|
||||||
|
out = out - 2.0*in;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
virtual void Mdag (const Field &in, Field &out) { M(in,out);}; // Laplacian is hermitian
|
||||||
|
virtual void Mdiag (const Field &in, Field &out) {assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
virtual void Mdir (const Field &in, Field &out,int dir, int disp){assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
virtual void MdirAll (const Field &in, std::vector<Field> &out) {assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
#define LEG_LOAD(Dir) \
|
||||||
|
SE = st.GetEntry(ptype, Dir, ss); \
|
||||||
|
if (SE->_is_local ) { \
|
||||||
|
int perm= SE->_permute; \
|
||||||
|
chi = coalescedReadPermute(in[SE->_offset],ptype,perm,lane); \
|
||||||
|
} else { \
|
||||||
|
chi = coalescedRead(buf[SE->_offset],lane); \
|
||||||
|
} \
|
||||||
|
acceleratorSynchronise();
|
||||||
|
|
||||||
|
template<class Field> class FreeLaplacianStencil : public SparseMatrixBase<Field>
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
typedef typename Field::vector_object siteObject;
|
||||||
|
typedef CartesianStencil<siteObject, siteObject, int> StencilImpl;
|
||||||
|
|
||||||
|
GridBase *grid;
|
||||||
|
StencilImpl Stencil;
|
||||||
|
SimpleCompressor<siteObject> Compressor;
|
||||||
|
|
||||||
|
FreeLaplacianStencil(GridBase *_grid)
|
||||||
|
: Stencil (_grid,6,Even,directions,displacements,0), grid(_grid)
|
||||||
|
{ };
|
||||||
|
|
||||||
|
virtual GridBase *Grid(void) { return grid; };
|
||||||
|
|
||||||
|
virtual void M (const Field &_in, Field &_out)
|
||||||
|
{
|
||||||
|
|
||||||
|
///////////////////////////////////////////////
|
||||||
|
// Halo exchange for this geometry of stencil
|
||||||
|
///////////////////////////////////////////////
|
||||||
|
Stencil.HaloExchange(_in, Compressor);
|
||||||
|
|
||||||
|
///////////////////////////////////
|
||||||
|
// Arithmetic expressions
|
||||||
|
///////////////////////////////////
|
||||||
|
StencilEntry *SE;
|
||||||
|
|
||||||
|
// Views; device friendly/accessible pointers
|
||||||
|
auto st = Stencil.View(AcceleratorRead);
|
||||||
|
auto buf = st.CommBuf();
|
||||||
|
autoView( in , _in , AcceleratorRead);
|
||||||
|
autoView( out , _out , AcceleratorWrite);
|
||||||
|
|
||||||
|
typedef typename Field::vector_object vobj;
|
||||||
|
typedef decltype(coalescedRead(in[0])) calcObj;
|
||||||
|
|
||||||
|
const int Nsimd = vobj::Nsimd();
|
||||||
|
const uint64_t NN = grid->oSites();
|
||||||
|
const int lane=acceleratorSIMTlane(Nsimd);
|
||||||
|
|
||||||
|
accelerator_for( ss, NN, Nsimd, {
|
||||||
|
|
||||||
|
const int lane=acceleratorSIMTlane(Nsimd);
|
||||||
|
|
||||||
|
calcObj chi;
|
||||||
|
calcObj res;
|
||||||
|
int ptype;
|
||||||
|
|
||||||
|
res = coalescedRead(in[ss])*(-6.0);
|
||||||
|
LEG_LOAD(0); res = res + chi;
|
||||||
|
LEG_LOAD(1); res = res + chi;
|
||||||
|
LEG_LOAD(2); res = res + chi;
|
||||||
|
LEG_LOAD(3); res = res + chi;
|
||||||
|
LEG_LOAD(4); res = res + chi;
|
||||||
|
LEG_LOAD(5); res = res + chi;
|
||||||
|
|
||||||
|
coalescedWrite(out[ss], res,lane);
|
||||||
|
|
||||||
|
});
|
||||||
|
};
|
||||||
|
virtual void Mdag (const Field &in, Field &out) { M(in,out);}; // Laplacian is hermitian
|
||||||
|
virtual void Mdiag (const Field &in, Field &out) {assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
virtual void Mdir (const Field &in, Field &out,int dir, int disp){assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
virtual void MdirAll (const Field &in, std::vector<Field> &out) {assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
};
|
||||||
|
|
||||||
|
template<class Gimpl,class Field> class CovariantLaplacianStencil : public SparseMatrixBase<Field>
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
INHERIT_GIMPL_TYPES(Gimpl);
|
||||||
|
|
||||||
|
typedef typename Field::vector_object siteObject;
|
||||||
|
|
||||||
|
template <typename vtype> using iImplDoubledGaugeField = iVector<iScalar<iMatrix<vtype, Nc> >, Nds>;
|
||||||
|
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
|
||||||
|
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
|
||||||
|
|
||||||
|
typedef CartesianStencil<siteObject, siteObject, int> StencilImpl;
|
||||||
|
|
||||||
|
GridBase *grid;
|
||||||
|
StencilImpl Stencil;
|
||||||
|
SimpleCompressor<siteObject> Compressor;
|
||||||
|
DoubledGaugeField Uds;
|
||||||
|
CovariantLaplacianStencil(GaugeField &Umu)
|
||||||
|
:
|
||||||
|
grid(Umu.Grid()),
|
||||||
|
Stencil (grid,6,Even,directions,displacements,0),
|
||||||
|
Uds(grid)
|
||||||
|
{
|
||||||
|
for (int mu = 0; mu < Nd; mu++) {
|
||||||
|
auto U = PeekIndex<LorentzIndex>(Umu, mu);
|
||||||
|
PokeIndex<LorentzIndex>(Uds, U, mu );
|
||||||
|
U = adj(Cshift(U, mu, -1));
|
||||||
|
PokeIndex<LorentzIndex>(Uds, U, mu + 4);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
virtual GridBase *Grid(void) { return grid; };
|
||||||
|
|
||||||
|
virtual void M (const Field &_in, Field &_out)
|
||||||
|
{
|
||||||
|
///////////////////////////////////////////////
|
||||||
|
// Halo exchange for this geometry of stencil
|
||||||
|
///////////////////////////////////////////////
|
||||||
|
Stencil.HaloExchange(_in, Compressor);
|
||||||
|
|
||||||
|
///////////////////////////////////
|
||||||
|
// Arithmetic expressions
|
||||||
|
///////////////////////////////////
|
||||||
|
auto st = Stencil.View(AcceleratorRead);
|
||||||
|
auto buf = st.CommBuf();
|
||||||
|
StencilEntry *SE;
|
||||||
|
|
||||||
|
autoView( in , _in , AcceleratorRead);
|
||||||
|
autoView( out , _out , AcceleratorWrite);
|
||||||
|
autoView( U , Uds , AcceleratorRead);
|
||||||
|
|
||||||
|
typedef typename Field::vector_object vobj;
|
||||||
|
typedef decltype(coalescedRead(in[0])) calcObj;
|
||||||
|
typedef decltype(coalescedRead(U[0](0))) calcLink;
|
||||||
|
|
||||||
|
const int Nsimd = vobj::Nsimd();
|
||||||
|
const uint64_t NN = grid->oSites();
|
||||||
|
const int lane=acceleratorSIMTlane(Nsimd);
|
||||||
|
accelerator_for( ss, NN, Nsimd, {
|
||||||
|
|
||||||
|
const int lane=acceleratorSIMTlane(Nsimd);
|
||||||
|
|
||||||
|
calcObj chi;
|
||||||
|
calcObj res;
|
||||||
|
calcObj Uchi;
|
||||||
|
calcLink UU;
|
||||||
|
int ptype;
|
||||||
|
|
||||||
|
res = coalescedRead(in[ss])*(-6.0);
|
||||||
|
|
||||||
|
#define LEG_LOAD_MULT(leg,polarisation) \
|
||||||
|
UU = coalescedRead(U[ss](polarisation)); \
|
||||||
|
LEG_LOAD(leg); \
|
||||||
|
mult(&Uchi(), &UU, &chi()); \
|
||||||
|
res = res + Uchi;
|
||||||
|
|
||||||
|
LEG_LOAD_MULT(0,Xp);
|
||||||
|
LEG_LOAD_MULT(1,Yp);
|
||||||
|
LEG_LOAD_MULT(2,Zp);
|
||||||
|
LEG_LOAD_MULT(3,Xm);
|
||||||
|
LEG_LOAD_MULT(4,Ym);
|
||||||
|
LEG_LOAD_MULT(5,Zm);
|
||||||
|
|
||||||
|
coalescedWrite(out[ss], res,lane);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
virtual void Mdag (const Field &in, Field &out) { M(in,out);}; // Laplacian is hermitian
|
||||||
|
virtual void Mdiag (const Field &in, Field &out) {assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
virtual void Mdir (const Field &in, Field &out,int dir, int disp){assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
virtual void MdirAll (const Field &in, std::vector<Field> &out) {assert(0);}; // Unimplemented need only for multigrid
|
||||||
|
};
|
||||||
|
|
||||||
|
#undef LEG_LOAD_MULT
|
||||||
|
#undef LEG_LOAD
|
||||||
|
|
||||||
|
int main(int argc, char ** argv)
|
||||||
|
{
|
||||||
|
Grid_init(&argc, &argv);
|
||||||
|
|
||||||
|
typedef LatticeColourVector Field;
|
||||||
|
|
||||||
|
auto latt_size = GridDefaultLatt();
|
||||||
|
auto simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
|
||||||
|
auto mpi_layout = GridDefaultMpi();
|
||||||
|
|
||||||
|
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
|
||||||
|
GridParallelRNG RNG(&Grid); RNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
|
||||||
|
|
||||||
|
FreeLaplacianCshift<Field> FLcs(&Grid);
|
||||||
|
FreeLaplacianStencil<Field> FLst(&Grid);
|
||||||
|
|
||||||
|
LatticeGaugeField U(&Grid);
|
||||||
|
|
||||||
|
SU<Nc>::ColdConfiguration(RNG,U);
|
||||||
|
|
||||||
|
std::cout << " Gauge field has norm " <<norm2(U)<<std::endl;
|
||||||
|
|
||||||
|
CovariantLaplacianCshift <PeriodicGimplR,Field> CLcs(U);
|
||||||
|
CovariantLaplacianStencil<PeriodicGimplR,Field> CLst(U);
|
||||||
|
|
||||||
|
Field in(&Grid); gaussian(RNG,in);
|
||||||
|
Field out_FLcs(&Grid);
|
||||||
|
Field out_FLst(&Grid);
|
||||||
|
Field out_CLcs(&Grid);
|
||||||
|
Field out_CLst(&Grid);
|
||||||
|
Field diff(&Grid);
|
||||||
|
|
||||||
|
////////////////////////////////////////////////////////
|
||||||
|
// First test: in free field these should all agree
|
||||||
|
////////////////////////////////////////////////////////
|
||||||
|
FLcs.M(in,out_FLcs);
|
||||||
|
FLst.M(in,out_FLst);
|
||||||
|
CLcs.M(in,out_CLcs);
|
||||||
|
CLst.M(in,out_CLst);
|
||||||
|
|
||||||
|
std:: cout << "******************************************************************" <<std::endl;
|
||||||
|
std:: cout << " Test A: consistency of four different Laplacian implementations " <<std::endl;
|
||||||
|
std:: cout << "******************************************************************" <<std::endl;
|
||||||
|
std:: cout << " Input test vector " <<norm2(in)<<std::endl;
|
||||||
|
std:: cout << "--------------------------------------------------------" <<std::endl;
|
||||||
|
std:: cout << " Free cshift output vector " <<norm2(out_FLcs)<<std::endl;
|
||||||
|
std:: cout << " Free stencil output vector " <<norm2(out_FLst)<<std::endl;
|
||||||
|
std:: cout << " Cov cshift output vector " <<norm2(out_CLcs)<<std::endl;
|
||||||
|
std:: cout << " Cov stencil output vector " <<norm2(out_CLst)<<std::endl;
|
||||||
|
std:: cout << "--------------------------------------------------------" <<std::endl;
|
||||||
|
|
||||||
|
diff = out_FLcs - out_FLst;
|
||||||
|
std:: cout << " Difference between free Cshift Laplacian and free Stencil Laplacian = " <<norm2(diff)<<std::endl;
|
||||||
|
|
||||||
|
diff = out_FLcs - out_CLcs;
|
||||||
|
std:: cout << " Difference between free Cshift Laplacian and covariant Cshift Laplacian = " <<norm2(diff)<<std::endl;
|
||||||
|
|
||||||
|
diff = out_FLcs - out_CLst;
|
||||||
|
std:: cout << " Difference between free Cshift Laplacian and covariant Stencil Laplacian = " <<norm2(diff)<<std::endl;
|
||||||
|
std:: cout << "--------------------------------------------------------" <<std::endl;
|
||||||
|
|
||||||
|
|
||||||
|
std:: cout << "******************************************************************" <<std::endl;
|
||||||
|
std:: cout << " Test B: gauge covariance " <<std::endl;
|
||||||
|
std:: cout << "******************************************************************" <<std::endl;
|
||||||
|
|
||||||
|
LatticeGaugeField U_GT(&Grid); // Gauge transformed field
|
||||||
|
LatticeColourMatrix g(&Grid); // local Gauge xform matrix
|
||||||
|
|
||||||
|
U_GT = U;
|
||||||
|
// Make a random xform to teh gauge field
|
||||||
|
SU<Nc>::RandomGaugeTransform(RNG,U_GT,g); // Unit gauge
|
||||||
|
|
||||||
|
Field in_GT(&Grid);
|
||||||
|
Field out_GT(&Grid);
|
||||||
|
|
||||||
|
Field out_CLcs_GT(&Grid);
|
||||||
|
Field out_CLst_GT(&Grid);
|
||||||
|
|
||||||
|
CovariantLaplacianCshift <PeriodicGimplR,Field> CLcs_GT(U_GT);
|
||||||
|
CovariantLaplacianStencil<PeriodicGimplR,Field> CLst_GT(U_GT);
|
||||||
|
|
||||||
|
in_GT = g*in;
|
||||||
|
out_GT = g*out_FLcs;
|
||||||
|
|
||||||
|
// Check M^GT_xy in_GT = g(x) M_xy g^dag(y) g(y) in = g(x) out(x)
|
||||||
|
CLcs_GT.M(in_GT,out_CLcs_GT);
|
||||||
|
CLst_GT.M(in_GT,out_CLst_GT);
|
||||||
|
|
||||||
|
diff = out_CLcs_GT - out_GT;
|
||||||
|
std:: cout << " Difference between Gauge xformed result and covariant Cshift Laplacian in xformed gauge = " <<norm2(diff)<<std::endl;
|
||||||
|
|
||||||
|
diff = out_CLst_GT - out_GT;
|
||||||
|
std:: cout << " Difference between Gauge xformed result and covariant Stencil Laplacian in xformed gauge = " <<norm2(diff)<<std::endl;
|
||||||
|
std:: cout << "--------------------------------------------------------" <<std::endl;
|
||||||
|
|
||||||
|
|
||||||
|
std:: cout << "******************************************************************" <<std::endl;
|
||||||
|
std:: cout << " Test C: compare in free Field to \"Feynman rule\" " <<std::endl;
|
||||||
|
std:: cout << "******************************************************************" <<std::endl;
|
||||||
|
|
||||||
|
std::vector<int> dim_mask({1,1,1,0}); // 3d FFT
|
||||||
|
FFT theFFT(&Grid);
|
||||||
|
Field out(&Grid);
|
||||||
|
Field F_out(&Grid);
|
||||||
|
Field F_in(&Grid);
|
||||||
|
|
||||||
|
// FFT the random input vector
|
||||||
|
theFFT.FFT_dim_mask(F_in,in,dim_mask,FFT::forward);
|
||||||
|
|
||||||
|
// Convolution theorem: multiply by Fourier representation of (discrete) Laplacian to apply diff op
|
||||||
|
LatticeComplexD lap(&Grid); lap = Zero();
|
||||||
|
LatticeComplexD kmu(&Grid);
|
||||||
|
ComplexD ci(0.0,1.0);
|
||||||
|
for(int mu=0;mu<3;mu++) {
|
||||||
|
|
||||||
|
RealD TwoPiL = M_PI * 2.0/ latt_size[mu];
|
||||||
|
|
||||||
|
LatticeCoordinate(kmu,mu);
|
||||||
|
kmu = TwoPiL * kmu;
|
||||||
|
|
||||||
|
// (e^ik_mu + e^-ik_mu - 2) = 2( cos kmu - 1) ~ 2 (1 - k_mu^2/2 -1 ) = - k_mu^2 + O(k^4)
|
||||||
|
lap = lap + 2.0*cos(kmu) - 2.0;
|
||||||
|
|
||||||
|
}
|
||||||
|
F_out = lap * F_in;
|
||||||
|
|
||||||
|
// Inverse FFT the result
|
||||||
|
theFFT.FFT_dim_mask(out,F_out,dim_mask,FFT::backward);
|
||||||
|
|
||||||
|
std::cout<<"Fourier xformed (in) "<<norm2(F_in)<<std::endl;
|
||||||
|
std::cout<<"Fourier xformed Laplacian x (in) "<<norm2(F_out)<<std::endl;
|
||||||
|
|
||||||
|
std::cout<<"Momentum space Laplacian application "<< norm2(out)<<std::endl;
|
||||||
|
std::cout<<"Stencil Laplacian application "<< norm2(out_CLcs)<<std::endl;
|
||||||
|
|
||||||
|
diff = out_CLcs - out;
|
||||||
|
std::cout<<"diff "<< norm2(diff)<<std::endl;
|
||||||
|
|
||||||
|
Grid_finalize();
|
||||||
|
}
|
||||||
6
examples/Makefile.am
Normal file
6
examples/Makefile.am
Normal file
@ -0,0 +1,6 @@
|
|||||||
|
SUBDIRS = .
|
||||||
|
|
||||||
|
include Make.inc
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
Loading…
Reference in New Issue
Block a user