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https://github.com/paboyle/Grid.git
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Move slice operations to GPU for BlockCG
This commit is contained in:
Peter Boyle
parent
15cc78f0b6
commit
d66b2423cb
@ -536,7 +536,20 @@ sliceSum(const Lattice<vobj> &Data,int orthogdim)
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return result;
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}
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/*
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Reimplement
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1)
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template<class vobj>
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static void sliceMaddMatrix (Lattice<vobj> &R,Eigen::MatrixXcd &aa,const Lattice<vobj> &X,const Lattice<vobj> &Y,int Orthog,RealD scale=1.0)
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2)
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template<class vobj>
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static void sliceInnerProductMatrix( Eigen::MatrixXcd &mat, const Lattice<vobj> &lhs,const Lattice<vobj> &rhs,int Orthog)
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3)
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-- Make Slice Mul Matrix call sliceMaddMatrix
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*/
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template<class vobj>
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static void sliceInnerProductVector( std::vector<ComplexD> & result, const Lattice<vobj> &lhs,const Lattice<vobj> &rhs,int orthogdim)
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{
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@ -687,203 +700,96 @@ static void sliceMaddVector(Lattice<vobj> &R,std::vector<RealD> &a,const Lattice
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}
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};
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/*
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inline GridBase *makeSubSliceGrid(const GridBase *BlockSolverGrid,int Orthog)
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{
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int NN = BlockSolverGrid->_ndimension;
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int nsimd = BlockSolverGrid->Nsimd();
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std::vector<int> latt_phys(0);
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std::vector<int> simd_phys(0);
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std::vector<int> mpi_phys(0);
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std::vector<int> latt_phys(NN-1);
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Coordinate simd_phys;
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std::vector<int> mpi_phys(NN-1);
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Coordinate checker_dim_mask(NN-1);
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int checker_dim=-1;
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int dd;
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for(int d=0;d<NN;d++){
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if( d!=Orthog ) {
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latt_phys.push_back(BlockSolverGrid->_fdimensions[d]);
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simd_phys.push_back(BlockSolverGrid->_simd_layout[d]);
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mpi_phys.push_back(BlockSolverGrid->_processors[d]);
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latt_phys[dd]=BlockSolverGrid->_fdimensions[d];
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mpi_phys[dd] =BlockSolverGrid->_processors[d];
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checker_dim_mask[dd] = BlockSolverGrid->_checker_dim_mask[d];
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if ( d == BlockSolverGrid->_checker_dim ) checker_dim = dd;
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dd++;
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}
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}
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return (GridBase *)new GridCartesian(latt_phys,simd_phys,mpi_phys);
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simd_phys=GridDefaultSimd(latt_phys.size(),nsimd);
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GridCartesian *tmp = new GridCartesian(latt_phys,simd_phys,mpi_phys);
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if(BlockSolverGrid->_isCheckerBoarded) {
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GridRedBlackCartesian *ret = new GridRedBlackCartesian(tmp,checker_dim_mask,checker_dim);
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delete tmp;
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return (GridBase *) ret;
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} else {
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return (GridBase *) tmp;
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}
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}
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*/
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template<class vobj>
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static void sliceMaddMatrix (Lattice<vobj> &R,Eigen::MatrixXcd &aa,const Lattice<vobj> &X,const Lattice<vobj> &Y,int Orthog,RealD scale=1.0)
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{
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GridBase *FullGrid = X.Grid();
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GridBase *SliceGrid = makeSubSliceGrid(FullGrid,Orthog);
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Lattice<vobj> Ys(SliceGrid);
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Lattice<vobj> Rs(SliceGrid);
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Lattice<vobj> Xs(SliceGrid);
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Lattice<vobj> RR(FullGrid);
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RR = R; // Copies checkerboard for insert
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typedef typename vobj::scalar_object sobj;
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typedef typename vobj::vector_type vector_type;
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int Nblock = X.Grid()->GlobalDimensions()[Orthog];
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GridBase *FullGrid = X.Grid();
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// GridBase *SliceGrid = makeSubSliceGrid(FullGrid,Orthog);
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// Lattice<vobj> Xslice(SliceGrid);
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// Lattice<vobj> Rslice(SliceGrid);
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assert( FullGrid->_simd_layout[Orthog]==1);
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// int nh = FullGrid->_ndimension;
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// int nl = SliceGrid->_ndimension;
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// int nl = nh-1;
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//FIXME package in a convenient iterator
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//Should loop over a plane orthogonal to direction "Orthog"
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int stride=FullGrid->_slice_stride[Orthog];
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int block =FullGrid->_slice_block [Orthog];
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int nblock=FullGrid->_slice_nblock[Orthog];
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int ostride=FullGrid->_ostride[Orthog];
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autoView( X_v, X, CpuRead);
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autoView( Y_v, Y, CpuRead);
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autoView( R_v, R, CpuWrite);
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thread_region
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{
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Vector<vobj> s_x(Nblock);
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thread_for_collapse_in_region(2, n,nblock, {
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for(int b=0;b<block;b++){
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int o = n*stride + b;
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for(int i=0;i<Nblock;i++){
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s_x[i] = X_v[o+i*ostride];
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}
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vobj dot;
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for(int i=0;i<Nblock;i++){
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dot = Y_v[o+i*ostride];
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for(int j=0;j<Nblock;j++){
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dot = dot + s_x[j]*(scale*aa(j,i));
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}
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R_v[o+i*ostride]=dot;
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}
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}});
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int Nslice = X.Grid()->GlobalDimensions()[Orthog];
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for(int i=0;i<Nslice;i++){
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ExtractSlice(Ys,Y,i,Orthog);
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ExtractSlice(Rs,R,i,Orthog);
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Rs=Ys;
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for(int j=0;j<Nslice;j++){
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ExtractSlice(Xs,X,j,Orthog);
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Rs = Rs + Xs*(scale*aa(j,i));
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}
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InsertSlice(Rs,RR,i,Orthog);
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}
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R=RR; // Copy back handles arguments aliasing case
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delete SliceGrid;
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};
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template<class vobj>
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static void sliceMulMatrix (Lattice<vobj> &R,Eigen::MatrixXcd &aa,const Lattice<vobj> &X,int Orthog,RealD scale=1.0)
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{
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typedef typename vobj::scalar_object sobj;
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typedef typename vobj::vector_type vector_type;
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int Nblock = X.Grid()->GlobalDimensions()[Orthog];
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GridBase *FullGrid = X.Grid();
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// GridBase *SliceGrid = makeSubSliceGrid(FullGrid,Orthog);
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// Lattice<vobj> Xslice(SliceGrid);
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// Lattice<vobj> Rslice(SliceGrid);
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assert( FullGrid->_simd_layout[Orthog]==1);
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// int nh = FullGrid->_ndimension;
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// int nl = SliceGrid->_ndimension;
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// int nl=1;
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//FIXME package in a convenient iterator
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// thread_for2d_in_region
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//Should loop over a plane orthogonal to direction "Orthog"
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int stride=FullGrid->_slice_stride[Orthog];
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int block =FullGrid->_slice_block [Orthog];
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int nblock=FullGrid->_slice_nblock[Orthog];
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int ostride=FullGrid->_ostride[Orthog];
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autoView( R_v, R, CpuWrite);
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autoView( X_v, X, CpuRead);
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thread_region
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{
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std::vector<vobj> s_x(Nblock);
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thread_for_collapse_in_region( 2 ,n,nblock,{
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for(int b=0;b<block;b++){
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int o = n*stride + b;
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for(int i=0;i<Nblock;i++){
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s_x[i] = X_v[o+i*ostride];
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}
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vobj dot;
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for(int i=0;i<Nblock;i++){
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dot = s_x[0]*(scale*aa(0,i));
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for(int j=1;j<Nblock;j++){
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dot = dot + s_x[j]*(scale*aa(j,i));
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}
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R_v[o+i*ostride]=dot;
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}
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}});
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}
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static void sliceMulMatrix (Lattice<vobj> &R,Eigen::MatrixXcd &aa,const Lattice<vobj> &X,int Orthog,RealD scale=1.0)
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{
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R=Zero();
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sliceMaddMatrix(R,aa,X,R,Orthog,scale);
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};
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template<class vobj>
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static void sliceInnerProductMatrix( Eigen::MatrixXcd &mat, const Lattice<vobj> &lhs,const Lattice<vobj> &rhs,int Orthog)
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{
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GridBase *SliceGrid = makeSubSliceGrid(lhs.Grid(),Orthog);
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Lattice<vobj> ls(SliceGrid);
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Lattice<vobj> rs(SliceGrid);
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typedef typename vobj::scalar_object sobj;
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typedef typename vobj::vector_type vector_type;
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GridBase *FullGrid = lhs.Grid();
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// GridBase *SliceGrid = makeSubSliceGrid(FullGrid,Orthog);
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int Nblock = FullGrid->GlobalDimensions()[Orthog];
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// Lattice<vobj> Lslice(SliceGrid);
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// Lattice<vobj> Rslice(SliceGrid);
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mat = Eigen::MatrixXcd::Zero(Nblock,Nblock);
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assert( FullGrid->_simd_layout[Orthog]==1);
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// int nh = FullGrid->_ndimension;
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// int nl = SliceGrid->_ndimension;
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// int nl = nh-1;
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//FIXME package in a convenient iterator
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//Should loop over a plane orthogonal to direction "Orthog"
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int stride=FullGrid->_slice_stride[Orthog];
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int block =FullGrid->_slice_block [Orthog];
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int nblock=FullGrid->_slice_nblock[Orthog];
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int ostride=FullGrid->_ostride[Orthog];
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typedef typename vobj::vector_typeD vector_typeD;
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autoView( lhs_v, lhs, CpuRead);
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autoView( rhs_v, rhs, CpuRead);
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thread_region
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{
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std::vector<vobj> Left(Nblock);
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std::vector<vobj> Right(Nblock);
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Eigen::MatrixXcd mat_thread = Eigen::MatrixXcd::Zero(Nblock,Nblock);
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thread_for_collapse_in_region( 2, n,nblock,{
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for(int b=0;b<block;b++){
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int o = n*stride + b;
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for(int i=0;i<Nblock;i++){
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Left [i] = lhs_v[o+i*ostride];
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Right[i] = rhs_v[o+i*ostride];
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}
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for(int i=0;i<Nblock;i++){
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for(int j=0;j<Nblock;j++){
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auto tmp = innerProduct(Left[i],Right[j]);
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auto rtmp = TensorRemove(tmp);
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auto red = Reduce(rtmp);
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mat_thread(i,j) += std::complex<double>(real(red),imag(red));
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}}
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}});
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thread_critical
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{
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mat += mat_thread;
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}
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int Nslice = lhs.Grid()->GlobalDimensions()[Orthog];
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mat = Eigen::MatrixXcd::Zero(Nslice,Nslice);
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for(int s=0;s<Nslice;s++){
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ExtractSlice(ls,lhs,s,Orthog);
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for(int ss=0;ss<Nslice;ss++){
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ExtractSlice(rs,rhs,ss,Orthog);
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mat(s,ss) = innerProduct(ls,rs);
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}
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}
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for(int i=0;i<Nblock;i++){
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for(int j=0;j<Nblock;j++){
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ComplexD sum = mat(i,j);
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FullGrid->GlobalSum(sum);
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mat(i,j)=sum;
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}}
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return;
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delete SliceGrid;
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}
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NAMESPACE_END(Grid);
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