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Starting the implementation of wilson; incomplete and committing non-functional code which
is not yet included from elsewhere or linked to the build system.
This commit is contained in:
Peter Boyle
parent
d5fd34b6e8
commit
c678f2d255
10
TODO
10
TODO
@ -1,5 +1,6 @@
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* - BinaryWriter, TextWriter etc...
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- protocol buffers? replace xmlReader/Writer ec..
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- use protocol buffers? replace xmlReader/Writer ec..
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- Binary use htonll, htonl
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* Stencil operator support -----Initial thoughts, trial implementation DONE.
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-----some simple tests that Stencil matches Cshift.
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@ -15,10 +16,9 @@
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boost::multi_array<type, 3> A()... to replace multi1d, multi2d etc..
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* norm2l is a hack. figure out syntax error and make this norm2. c.f. tests/Grid_gamma.cc
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* norm2l is a hack. figure out syntax error and make this norm2 c.f. tests/Grid_gamma.cc
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* std::vector replacement;
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**** std::vector replacement;
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Had to change "reserve" back to "resize" on std::vector in Lattice class.
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@ -59,7 +59,6 @@
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* rb4d support for 5th dimension in Mobius.
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* Check for missing functionality - partially audited against QDP++ layout
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Algorithms
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@ -70,6 +69,7 @@ Algorithms
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* Pcg
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* fPcg
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* MCR
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* HDCG
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* etc..
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AUDITS:
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157
lib/qcd/Grid_qcd_wilson_dop.cc
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157
lib/qcd/Grid_qcd_wilson_dop.cc
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@ -0,0 +1,157 @@
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#ifnfdef GRID_QCD_WILSON_DOP_H
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#define GRID_QCD_WILSON_DOP_H
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#include <Grid.h>
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namespace Grid {
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namespace QCD {
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const std::vector<int> WilsonMatrix::directions ({0,1,2,3, 0, 1, 2, 3,0});
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const std::vector<int> WilsonMatrix::displacements({1,1,1,1,-1,-1,-1,-1,0});
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// Should be in header?
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static const int WilsonMatrix::Xp = 0;
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static const int WilsonMatrix::Yp = 1;
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static const int WilsonMatrix::Zp = 2;
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static const int WilsonMatrix::Tp = 3;
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static const int WilsonMatrix::Xm = 4;
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static const int WilsonMatrix::Ym = 5;
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static const int WilsonMatrix::Zm = 6;
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static const int WilsonMatrix::Tm = 7;
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static const int WilsonMatrix::X0 = 8;
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static const int WilsonMatrix::npoint=9;
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WilsonMatrix::WilsonMatrix(LatticeGaugeField &_Umu,int _mass)
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: Stencil((&Umu._grid,npoint,0,directions,displacements),
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mass(_mass),
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Umu(_Umu)
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{
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// Allocate the required comms buffer
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grid = _Umu._grid;
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comm_buf.resize(Stencil._unified_buffer_size);
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}
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void WilsonMatrix::multiply(const LatticeFermion &in, LatticeFermion &out)
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{
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}
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void WilsonMatrix::Dhop(const LatticeFermion &in, LatticeFermion &out)
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{
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Stencil.HaloExchange(in,comm_buf);
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for(int ss=0;ss<_grid->oSites();ss++){
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int offset,local;
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vSpinColourVector result;
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vHalfSpinColourVector UChi;
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// Xp
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offset = Stencil._offsets [Xp][ss];
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local = Stencil._is_local[Xp][ss];
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if ( local ) {
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Uchi = U[]*spProjXp(in._odata[offset]);
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} else {
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Uchi = U[]*comm_buf._odata[offset]
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}
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result = ReconXp(Uchi);
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// Yp
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offset = Stencil._offsets [Yp][ss];
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local = Stencil._is_local[Yp][ss];
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if ( local ) {
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Uchi = U[]*spProjYp(in._odata[offset]);
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} else {
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Uchi = U[]*comm_buf._odata[offset]
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}
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result+= ReconYp(Uchi);
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// Zp
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offset = Stencil._offsets [Zp][ss];
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local = Stencil._is_local[Zp][ss];
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if ( local ) {
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Uchi = U[]*spProjZp(in._odata[offset]);
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} else {
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Uchi = U[]*comm_buf._odata[offset]
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}
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result+= ReconZp(Uchi);
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// Tp
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offset = Stencil._offsets [Tp][ss];
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local = Stencil._is_local[Tp][ss];
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if ( local ) {
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Uchi = U[]*spProjTp(in._odata[offset]);
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} else {
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Uchi = U[]*comm_buf._odata[offset]
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}
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result+= ReconTp(Uchi);
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// Xm
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offset = Stencil._offsets [Xm][ss];
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local = Stencil._is_local[Xm][ss];
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if ( local ) {
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Uchi = U[]*spProjXm(in._odata[offset]);
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} else {
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Uchi = U[]*comm_buf._odata[offset]
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}
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result+= ReconXm(Uchi);
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// Ym
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offset = Stencil._offsets [Ym][ss];
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local = Stencil._is_local[Ym][ss];
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if ( local ) {
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Uchi = U[]*spProjYm(in._odata[offset]);
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} else {
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Uchi = U[]*comm_buf._odata[offset]
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}
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result+= ReconYm(Uchi);
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// Zm
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offset = Stencil._offsets [Zm][ss];
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local = Stencil._is_local[Zm][ss];
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if ( local ) {
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Uchi = U[]*spProjZm(in._odata[offset]);
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} else {
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Uchi = U[]*comm_buf._odata[offset]
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}
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result+= ReconZm(Uchi);
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// Tm
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offset = Stencil._offsets [Tm][ss];
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local = Stencil._is_local[Tm][ss];
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if ( local ) {
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Uchi = U[]*spProjTm(in._odata[offset]);
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} else {
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Uchi = U[]*comm_buf._odata[offset]
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}
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result+= ReconTm(Uchi);
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out._odata[ss] = result;
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}
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}
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void WilsonMatrix::Dw(const LatticeFermion &in, LatticeFermion &out)
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{
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}
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void WilsonMatrix::MpcDag (const LatticeFermion &in, LatticeFermion &out)
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{
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}
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void WilsonMatrix::Mpc (const LatticeFermion &in, LatticeFermion &out)
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{
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}
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void WilsonMatrix::MpcDagMpc(const LatticeFermion &in, LatticeFermion &out)
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{
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}
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void WilsonMatrix::MDagM (const LatticeFermion &in, LatticeFermion &out)
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{
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}
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}}
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#endif
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62
lib/qcd/Grid_qcd_wilson_dop.h
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62
lib/qcd/Grid_qcd_wilson_dop.h
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@ -0,0 +1,62 @@
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#ifnfdef GRID_QCD_WILSON_DOP_H
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#define GRID_QCD_WILSON_DOP_H
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#include <Grid.h>
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namespace Grid {
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namespace QCD {
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template<class vtype> class LinearOperatorBase {
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public:
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void multiply(const Lattice<vtype> &in, Lattice<vtype> &out){ assert(0);}
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};
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class WilsonMatrix : public LinearOperatorBase<LatticeFermion>
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{
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//NB r=1;
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public:
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double mass;
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GridBase *grid;
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// Copy of the gauge field
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LatticeGaugeField Umu;
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//Defines the stencil
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CartesianStencil Stencil;
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static const int npoint=9;
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static const std::vector<int> directions ;
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static const std::vector<int> displacements;
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static const int Xp,Xm,Yp,Ym,Zp,Zm,Tp,Tm;
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// Comms buffer
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std::vector<vSpinColourVector,alignedAllocator<vSpinColourVector> > comm_buf;
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// Constructor
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WilsonMatrix(LatticeGaugeField &Umu,int mass);
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// override multiply
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void multiply(const LatticeFermion &in, LatticeFermion &out);
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// non-hermitian hopping term; half cb or both
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void Dhop(const LatticeFermion &in, LatticeFermion &out);
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// m+4r -1/2 Dhop; both cb's
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void Dw(const LatticeFermion &in, LatticeFermion &out);
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// half checkerboard operaions
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void MpcDag (const LatticeFermion &in, LatticeFermion &out);
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void Mpc (const LatticeFermion &in, LatticeFermion &out);
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void MpcDagMpc(const LatticeFermion &in, LatticeFermion &out);
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// full checkerboard hermitian
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void MDagM (const LatticeFermion &in, LatticeFermion &out);
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};
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}
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}
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#endif
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