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Merge branch 'develop' into feature/scalar_adjointFT

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# Conflicts:
#	lib/communicator/Communicator_mpi3.cc
This commit is contained in:
Antonin Portelli
2017-11-11 18:09:55 +00:00
parent e0cae833da 25f73018f4
commit 074d17429f
45 changed files with 2099 additions and 1505 deletions
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36
tests/debug/Test_cheby.cc
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@ -37,8 +37,15 @@ RealD InverseApproximation(RealD x){
RealD SqrtApproximation(RealD x){
return std::sqrt(x);
}
RealD Approximation32(RealD x){
return std::pow(x,-1.0/32.0);
}
RealD Approximation2(RealD x){
return std::pow(x,-1.0/2.0);
}
RealD StepFunction(RealD x){
if ( x<0.1 ) return 1.0;
if ( x<10.0 ) return 1.0;
else return 0.0;
}
@ -56,7 +63,6 @@ int main (int argc, char ** argv)
Chebyshev<LatticeFermion> ChebyInv(lo,hi,2000,InverseApproximation);
{
std::ofstream of("chebyinv");
ChebyInv.csv(of);
@ -78,7 +84,6 @@ int main (int argc, char ** argv)
ChebyStep.JacksonSmooth();
{
std::ofstream of("chebystepjack");
ChebyStep.csv(of);
@ -100,5 +105,30 @@ int main (int argc, char ** argv)
ChebyNE.csv(of);
}
lo=0.0;
hi=4.0;
Chebyshev<LatticeFermion> Cheby32(lo,hi,2000,Approximation32);
{
std::ofstream of("cheby32");
Cheby32.csv(of);
}
Cheby32.JacksonSmooth();
{
std::ofstream of("cheby32jack");
Cheby32.csv(of);
}
Chebyshev<LatticeFermion> ChebySqrt(lo,hi,2000,Approximation2);
{
std::ofstream of("chebysqrt");
ChebySqrt.csv(of);
}
ChebySqrt.JacksonSmooth();
{
std::ofstream of("chebysqrtjack");
ChebySqrt.csv(of);
}
Grid_finalize();
}

61
tests/hmc/Test_remez.cc
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@ -38,11 +38,11 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage << "Testing Remez"<<std::endl;
double lo=0.01;
double hi=1.0;
double lo=1.0e-3;
double hi=5.0;
int precision=64;
int degree=10;
AlgRemez remez(0.001,1.0,precision);
int degree=16;
AlgRemez remez(lo,hi,precision);
////////////////////////////////////////
// sqrt and inverse sqrt
@ -50,21 +50,50 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage << "Generating degree "<<degree<<" for x^(1/2)"<<std::endl;
remez.generateApprox(degree,1,2);
MultiShiftFunction Sqrt(remez,1.0,false);
MultiShiftFunction InvSqrt(remez,1.0,true);
MultiShiftFunction Root2(remez,1.0,false);
MultiShiftFunction InvRoot2(remez,1.0,true);
std::cout<<GridLogMessage << "Generating degree "<<degree<<" for x^(1/4)"<<std::endl;
remez.generateApprox(degree,1,4);
MultiShiftFunction SqrtSqrt(remez,1.0,false);
MultiShiftFunction InvSqrtSqrt(remez,1.0,true);
MultiShiftFunction Root4(remez,1.0,false);
MultiShiftFunction InvRoot4(remez,1.0,true);
std::cout<<GridLogMessage << "Generating degree "<<degree<<" for x^(1/8)"<<std::endl;
remez.generateApprox(degree,1,8);
MultiShiftFunction Root8(remez,1.0,false);
MultiShiftFunction InvRoot8(remez,1.0,true);
std::cout<<GridLogMessage << "Generating degree "<<degree<<" for x^(1/16)"<<std::endl;
remez.generateApprox(degree,1,16);
MultiShiftFunction Root16(remez,1.0,false);
MultiShiftFunction InvRoot16(remez,1.0,true);
std::cout<<GridLogMessage << "Generating degree "<<degree<<" for x^(1/32)"<<std::endl;
remez.generateApprox(degree,1,32);
MultiShiftFunction Root32(remez,1.0,false);
MultiShiftFunction InvRoot32(remez,1.0,true);
ofstream gnuplot(std::string("Sqrt.gnu"),std::ios::out|std::ios::trunc);
Sqrt.gnuplot(gnuplot);
ofstream gnuplot(std::string("Root2.gnu"),std::ios::out|std::ios::trunc);
Root2.gnuplot(gnuplot);
ofstream gnuplot_i2(std::string("InvRoot2.gnu"),std::ios::out|std::ios::trunc);
InvRoot2.gnuplot(gnuplot_i2);
ofstream gnuplot_i4(std::string("InvRoot4.gnu"),std::ios::out|std::ios::trunc);
InvRoot4.gnuplot(gnuplot_i4);
ofstream gnuplot_i8(std::string("InvRoot8.gnu"),std::ios::out|std::ios::trunc);
InvRoot8.gnuplot(gnuplot_i8);
ofstream gnuplot_i16(std::string("InvRoot16.gnu"),std::ios::out|std::ios::trunc);
InvRoot16.gnuplot(gnuplot_i16);
ofstream gnuplot_i32(std::string("InvRoot32.gnu"),std::ios::out|std::ios::trunc);
InvRoot32.gnuplot(gnuplot_i32);
ofstream gnuplot_inv(std::string("InvSqrt.gnu"),std::ios::out|std::ios::trunc);
InvSqrt.gnuplot(gnuplot);
double x=0.6789;
double sx=std::sqrt(x);
@ -72,10 +101,10 @@ int main (int argc, char ** argv)
double isx=1.0/sx;
double issx=1.0/ssx;
double asx =Sqrt.approx(x);
double assx =SqrtSqrt.approx(x);
double aisx =InvSqrt.approx(x);
double aissx=InvSqrtSqrt.approx(x);
double asx =Root2.approx(x);
double assx =Root4.approx(x);
double aisx =InvRoot2.approx(x);
double aissx=InvRoot4.approx(x);
std::cout<<GridLogMessage << "x^(1/2) : "<<sx<<" "<<asx<<std::endl;
std::cout<<GridLogMessage << "x^(1/4) : "<<ssx<<" "<<assx<<std::endl;

143
tests/lanczos/BlockProjector.h Normal file
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@ -0,0 +1,143 @@
namespace Grid {
/*
BlockProjector
If _HP_BLOCK_PROJECTORS_ is defined, we assume that _evec is a basis that is not
fully orthonormalized (to the precision of the coarse field) and we allow for higher-precision
coarse field than basis field.
*/
//#define _HP_BLOCK_PROJECTORS_
template<typename Field>
class BlockProjector {
public:
BasisFieldVector<Field>& _evec;
BlockedGrid<Field>& _bgrid;
BlockProjector(BasisFieldVector<Field>& evec, BlockedGrid<Field>& bgrid) : _evec(evec), _bgrid(bgrid) {
}
void createOrthonormalBasis(RealD thres = 0.0) {
GridStopWatch sw;
sw.Start();
int cnt = 0;
#pragma omp parallel shared(cnt)
{
int lcnt = 0;
#pragma omp for
for (int b=0;b<_bgrid._o_blocks;b++) {
for (int i=0;i<_evec._Nm;i++) {
auto nrm0 = _bgrid.block_sp(b,_evec._v[i],_evec._v[i]);
// |i> -= <j|i> |j>
for (int j=0;j<i;j++) {
_bgrid.block_caxpy(b,_evec._v[i],-_bgrid.block_sp(b,_evec._v[j],_evec._v[i]),_evec._v[j],_evec._v[i]);
}
auto nrm = _bgrid.block_sp(b,_evec._v[i],_evec._v[i]);
auto eps = nrm/nrm0;
if (Reduce(eps).real() < thres) {
lcnt++;
}
// TODO: if norm is too small, remove this eigenvector/mark as not needed; in practice: set it to zero norm here and return a mask
// that is then used later to decide not to write certain eigenvectors to disk (add a norm calculation before subtraction step and look at nrm/nrm0 < eps to decide)
_bgrid.block_cscale(b,1.0 / sqrt(nrm),_evec._v[i]);
}
}
#pragma omp critical
{
cnt += lcnt;
}
}
sw.Stop();
std::cout << GridLogMessage << "Gram-Schmidt to create blocked basis took " << sw.Elapsed() << " (" << ((RealD)cnt / (RealD)_bgrid._o_blocks / (RealD)_evec._Nm)
<< " below threshold)" << std::endl;
}
template<typename CoarseField>
void coarseToFine(const CoarseField& in, Field& out) {
out = zero;
out.checkerboard = _evec._v[0].checkerboard;
int Nbasis = sizeof(in._odata[0]._internal._internal) / sizeof(in._odata[0]._internal._internal[0]);
assert(Nbasis == _evec._Nm);
#pragma omp parallel for
for (int b=0;b<_bgrid._o_blocks;b++) {
for (int j=0;j<_evec._Nm;j++) {
_bgrid.block_caxpy(b,out,in._odata[b]._internal._internal[j],_evec._v[j],out);
}
}
}
template<typename CoarseField>
void fineToCoarse(const Field& in, CoarseField& out) {
out = zero;
int Nbasis = sizeof(out._odata[0]._internal._internal) / sizeof(out._odata[0]._internal._internal[0]);
assert(Nbasis == _evec._Nm);
Field tmp(_bgrid._grid);
tmp = in;
#pragma omp parallel for
for (int b=0;b<_bgrid._o_blocks;b++) {
for (int j=0;j<_evec._Nm;j++) {
// |rhs> -= <j|rhs> |j>
auto c = _bgrid.block_sp(b,_evec._v[j],tmp);
_bgrid.block_caxpy(b,tmp,-c,_evec._v[j],tmp); // may make this more numerically stable
out._odata[b]._internal._internal[j] = c;
}
}
}
template<typename CoarseField>
void deflateFine(BasisFieldVector<CoarseField>& _coef,const std::vector<RealD>& eval,int N,const Field& src_orig,Field& result) {
result = zero;
for (int i=0;i<N;i++) {
Field tmp(result._grid);
coarseToFine(_coef._v[i],tmp);
axpy(result,TensorRemove(innerProduct(tmp,src_orig)) / eval[i],tmp,result);
}
}
template<typename CoarseField>
void deflateCoarse(BasisFieldVector<CoarseField>& _coef,const std::vector<RealD>& eval,int N,const Field& src_orig,Field& result) {
CoarseField src_coarse(_coef._v[0]._grid);
CoarseField result_coarse = src_coarse;
result_coarse = zero;
fineToCoarse(src_orig,src_coarse);
for (int i=0;i<N;i++) {
axpy(result_coarse,TensorRemove(innerProduct(_coef._v[i],src_coarse)) / eval[i],_coef._v[i],result_coarse);
}
coarseToFine(result_coarse,result);
}
template<typename CoarseField>
void deflate(BasisFieldVector<CoarseField>& _coef,const std::vector<RealD>& eval,int N,const Field& src_orig,Field& result) {
// Deflation on coarse Grid is much faster, so use it by default. Deflation on fine Grid is kept for legacy reasons for now.
deflateCoarse(_coef,eval,N,src_orig,result);
}
};
}

401
tests/lanczos/BlockedGrid.h Normal file
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@ -0,0 +1,401 @@
namespace Grid {
template<typename Field>
class BlockedGrid {
public:
GridBase* _grid;
typedef typename Field::scalar_type Coeff_t;
typedef typename Field::vector_type vCoeff_t;
std::vector<int> _bs; // block size
std::vector<int> _nb; // number of blocks
std::vector<int> _l; // local dimensions irrespective of cb
std::vector<int> _l_cb; // local dimensions of checkerboarded vector
std::vector<int> _l_cb_o; // local dimensions of inner checkerboarded vector
std::vector<int> _bs_cb; // block size in checkerboarded vector
std::vector<int> _nb_o; // number of blocks of simd o-sites
int _nd, _blocks, _cf_size, _cf_block_size, _cf_o_block_size, _o_blocks, _block_sites;
BlockedGrid(GridBase* grid, const std::vector<int>& block_size) :
_grid(grid), _bs(block_size), _nd((int)_bs.size()),
_nb(block_size), _l(block_size), _l_cb(block_size), _nb_o(block_size),
_l_cb_o(block_size), _bs_cb(block_size) {
_blocks = 1;
_o_blocks = 1;
_l = grid->FullDimensions();
_l_cb = grid->LocalDimensions();
_l_cb_o = grid->_rdimensions;
_cf_size = 1;
_block_sites = 1;
for (int i=0;i<_nd;i++) {
_l[i] /= grid->_processors[i];
assert(!(_l[i] % _bs[i])); // lattice must accommodate choice of blocksize
int r = _l[i] / _l_cb[i];
assert(!(_bs[i] % r)); // checkerboarding must accommodate choice of blocksize
_bs_cb[i] = _bs[i] / r;
_block_sites *= _bs_cb[i];
_nb[i] = _l[i] / _bs[i];
_nb_o[i] = _nb[i] / _grid->_simd_layout[i];
if (_nb[i] % _grid->_simd_layout[i]) { // simd must accommodate choice of blocksize
std::cout << GridLogMessage << "Problem: _nb[" << i << "] = " << _nb[i] << " _grid->_simd_layout[" << i << "] = " << _grid->_simd_layout[i] << std::endl;
assert(0);
}
_blocks *= _nb[i];
_o_blocks *= _nb_o[i];
_cf_size *= _l[i];
}
_cf_size *= 12 / 2;
_cf_block_size = _cf_size / _blocks;
_cf_o_block_size = _cf_size / _o_blocks;
std::cout << GridLogMessage << "BlockedGrid:" << std::endl;
std::cout << GridLogMessage << " _l = " << _l << std::endl;
std::cout << GridLogMessage << " _l_cb = " << _l_cb << std::endl;
std::cout << GridLogMessage << " _l_cb_o = " << _l_cb_o << std::endl;
std::cout << GridLogMessage << " _bs = " << _bs << std::endl;
std::cout << GridLogMessage << " _bs_cb = " << _bs_cb << std::endl;
std::cout << GridLogMessage << " _nb = " << _nb << std::endl;
std::cout << GridLogMessage << " _nb_o = " << _nb_o << std::endl;
std::cout << GridLogMessage << " _blocks = " << _blocks << std::endl;
std::cout << GridLogMessage << " _o_blocks = " << _o_blocks << std::endl;
std::cout << GridLogMessage << " sizeof(vCoeff_t) = " << sizeof(vCoeff_t) << std::endl;
std::cout << GridLogMessage << " _cf_size = " << _cf_size << std::endl;
std::cout << GridLogMessage << " _cf_block_size = " << _cf_block_size << std::endl;
std::cout << GridLogMessage << " _block_sites = " << _block_sites << std::endl;
std::cout << GridLogMessage << " _grid->oSites() = " << _grid->oSites() << std::endl;
// _grid->Barrier();
//abort();
}
void block_to_coor(int b, std::vector<int>& x0) {
std::vector<int> bcoor;
bcoor.resize(_nd);
x0.resize(_nd);
assert(b < _o_blocks);
Lexicographic::CoorFromIndex(bcoor,b,_nb_o);
int i;
for (i=0;i<_nd;i++) {
x0[i] = bcoor[i]*_bs_cb[i];
}
//std::cout << GridLogMessage << "Map block b -> " << x0 << std::endl;
}
void block_site_to_o_coor(const std::vector<int>& x0, std::vector<int>& coor, int i) {
Lexicographic::CoorFromIndex(coor,i,_bs_cb);
for (int j=0;j<_nd;j++)
coor[j] += x0[j];
}
int block_site_to_o_site(const std::vector<int>& x0, int i) {
std::vector<int> coor; coor.resize(_nd);
block_site_to_o_coor(x0,coor,i);
Lexicographic::IndexFromCoor(coor,i,_l_cb_o);
return i;
}
vCoeff_t block_sp(int b, const Field& x, const Field& y) {
std::vector<int> x0;
block_to_coor(b,x0);
vCoeff_t ret = 0.0;
for (int i=0;i<_block_sites;i++) { // only odd sites
int ss = block_site_to_o_site(x0,i);
ret += TensorRemove(innerProduct(x._odata[ss],y._odata[ss]));
}
return ret;
}
vCoeff_t block_sp(int b, const Field& x, const std::vector< ComplexD >& y) {
std::vector<int> x0;
block_to_coor(b,x0);
constexpr int nsimd = sizeof(vCoeff_t) / sizeof(Coeff_t);
int lsize = _cf_o_block_size / _block_sites;
std::vector< ComplexD > ret(nsimd);
for (int i=0;i<nsimd;i++)
ret[i] = 0.0;
for (int i=0;i<_block_sites;i++) { // only odd sites
int ss = block_site_to_o_site(x0,i);
int n = lsize / nsimd;
for (int l=0;l<n;l++) {
for (int j=0;j<nsimd;j++) {
int t = lsize * i + l*nsimd + j;
ret[j] += conjugate(((Coeff_t*)&x._odata[ss]._internal)[l*nsimd + j]) * y[t];
}
}
}
vCoeff_t vret;
for (int i=0;i<nsimd;i++)
((Coeff_t*)&vret)[i] = (Coeff_t)ret[i];
return vret;
}
template<class T>
void vcaxpy(iScalar<T>& r,const vCoeff_t& a,const iScalar<T>& x,const iScalar<T>& y) {
vcaxpy(r._internal,a,x._internal,y._internal);
}
template<class T,int N>
void vcaxpy(iVector<T,N>& r,const vCoeff_t& a,const iVector<T,N>& x,const iVector<T,N>& y) {
for (int i=0;i<N;i++)
vcaxpy(r._internal[i],a,x._internal[i],y._internal[i]);
}
void vcaxpy(vCoeff_t& r,const vCoeff_t& a,const vCoeff_t& x,const vCoeff_t& y) {
r = a*x + y;
}
void block_caxpy(int b, Field& ret, const vCoeff_t& a, const Field& x, const Field& y) {
std::vector<int> x0;
block_to_coor(b,x0);
for (int i=0;i<_block_sites;i++) { // only odd sites
int ss = block_site_to_o_site(x0,i);
vcaxpy(ret._odata[ss],a,x._odata[ss],y._odata[ss]);
}
}
void block_caxpy(int b, std::vector< ComplexD >& ret, const vCoeff_t& a, const Field& x, const std::vector< ComplexD >& y) {
std::vector<int> x0;
block_to_coor(b,x0);
constexpr int nsimd = sizeof(vCoeff_t) / sizeof(Coeff_t);
int lsize = _cf_o_block_size / _block_sites;
for (int i=0;i<_block_sites;i++) { // only odd sites
int ss = block_site_to_o_site(x0,i);
int n = lsize / nsimd;
for (int l=0;l<n;l++) {
vCoeff_t r = a* ((vCoeff_t*)&x._odata[ss]._internal)[l];
for (int j=0;j<nsimd;j++) {
int t = lsize * i + l*nsimd + j;
ret[t] = y[t] + ((Coeff_t*)&r)[j];
}
}
}
}
void block_set(int b, Field& ret, const std::vector< ComplexD >& x) {
std::vector<int> x0;
block_to_coor(b,x0);
int lsize = _cf_o_block_size / _block_sites;
for (int i=0;i<_block_sites;i++) { // only odd sites
int ss = block_site_to_o_site(x0,i);
for (int l=0;l<lsize;l++)
((Coeff_t*)&ret._odata[ss]._internal)[l] = (Coeff_t)x[lsize * i + l]; // convert precision
}
}
void block_get(int b, const Field& ret, std::vector< ComplexD >& x) {
std::vector<int> x0;
block_to_coor(b,x0);
int lsize = _cf_o_block_size / _block_sites;
for (int i=0;i<_block_sites;i++) { // only odd sites
int ss = block_site_to_o_site(x0,i);
for (int l=0;l<lsize;l++)
x[lsize * i + l] = (ComplexD)((Coeff_t*)&ret._odata[ss]._internal)[l];
}
}
template<class T>
void vcscale(iScalar<T>& r,const vCoeff_t& a,const iScalar<T>& x) {
vcscale(r._internal,a,x._internal);
}
template<class T,int N>
void vcscale(iVector<T,N>& r,const vCoeff_t& a,const iVector<T,N>& x) {
for (int i=0;i<N;i++)
vcscale(r._internal[i],a,x._internal[i]);
}
void vcscale(vCoeff_t& r,const vCoeff_t& a,const vCoeff_t& x) {
r = a*x;
}
void block_cscale(int b, const vCoeff_t& a, Field& ret) {
std::vector<int> x0;
block_to_coor(b,x0);
for (int i=0;i<_block_sites;i++) { // only odd sites
int ss = block_site_to_o_site(x0,i);
vcscale(ret._odata[ss],a,ret._odata[ss]);
}
}
void getCanonicalBlockOffset(int cb, std::vector<int>& x0) {
const int ndim = 5;
assert(_nb.size() == ndim);
std::vector<int> _nbc = { _nb[1], _nb[2], _nb[3], _nb[4], _nb[0] };
std::vector<int> _bsc = { _bs[1], _bs[2], _bs[3], _bs[4], _bs[0] };
x0.resize(ndim);
assert(cb >= 0);
assert(cb < _nbc[0]*_nbc[1]*_nbc[2]*_nbc[3]*_nbc[4]);
Lexicographic::CoorFromIndex(x0,cb,_nbc);
int i;
for (i=0;i<ndim;i++) {
x0[i] *= _bsc[i];
}
//if (cb < 2)
// std::cout << GridLogMessage << "Map: " << cb << " To: " << x0 << std::endl;
}
void pokeBlockOfVectorCanonical(int cb,Field& v,const std::vector<float>& buf) {
std::vector<int> _bsc = { _bs[1], _bs[2], _bs[3], _bs[4], _bs[0] };
std::vector<int> ldim = v._grid->LocalDimensions();
std::vector<int> cldim = { ldim[1], ldim[2], ldim[3], ldim[4], ldim[0] };
const int _nbsc = _bs_cb[0]*_bs_cb[1]*_bs_cb[2]*_bs_cb[3]*_bs_cb[4];
// take canonical block cb of v and put it in canonical ordering in buf
std::vector<int> cx0;
getCanonicalBlockOffset(cb,cx0);
#pragma omp parallel
{
std::vector<int> co0,cl0;
co0=cx0; cl0=cx0;
#pragma omp for
for (int i=0;i<_nbsc;i++) {
Lexicographic::CoorFromIndex(co0,2*i,_bsc); // 2* for eo
for (int j=0;j<(int)_bsc.size();j++)
cl0[j] = cx0[j] + co0[j];
std::vector<int> l0 = { cl0[4], cl0[0], cl0[1], cl0[2], cl0[3] };
int oi = v._grid->oIndex(l0);
int ii = v._grid->iIndex(l0);
int lti = i;
//if (cb < 2 && i<2)
// std::cout << GridLogMessage << "Map: " << cb << ", " << i << " To: " << cl0 << ", " << cx0 << ", " << oi << ", " << ii << std::endl;
for (int s=0;s<4;s++)
for (int c=0;c<3;c++) {
Coeff_t& ld = ((Coeff_t*)&v._odata[oi]._internal._internal[s]._internal[c])[ii];
int ti = 12*lti + 3*s + c;
ld = Coeff_t(buf[2*ti+0], buf[2*ti+1]);
}
}
}
}
void peekBlockOfVectorCanonical(int cb,const Field& v,std::vector<float>& buf) {
std::vector<int> _bsc = { _bs[1], _bs[2], _bs[3], _bs[4], _bs[0] };
std::vector<int> ldim = v._grid->LocalDimensions();
std::vector<int> cldim = { ldim[1], ldim[2], ldim[3], ldim[4], ldim[0] };
const int _nbsc = _bs_cb[0]*_bs_cb[1]*_bs_cb[2]*_bs_cb[3]*_bs_cb[4];
// take canonical block cb of v and put it in canonical ordering in buf
std::vector<int> cx0;
getCanonicalBlockOffset(cb,cx0);
buf.resize(_cf_block_size * 2);
#pragma omp parallel
{
std::vector<int> co0,cl0;
co0=cx0; cl0=cx0;
#pragma omp for
for (int i=0;i<_nbsc;i++) {
Lexicographic::CoorFromIndex(co0,2*i,_bsc); // 2* for eo
for (int j=0;j<(int)_bsc.size();j++)
cl0[j] = cx0[j] + co0[j];
std::vector<int> l0 = { cl0[4], cl0[0], cl0[1], cl0[2], cl0[3] };
int oi = v._grid->oIndex(l0);
int ii = v._grid->iIndex(l0);
int lti = i;
//if (cb < 2 && i<2)
// std::cout << GridLogMessage << "Map: " << cb << ", " << i << " To: " << cl0 << ", " << cx0 << ", " << oi << ", " << ii << std::endl;
for (int s=0;s<4;s++)
for (int c=0;c<3;c++) {
Coeff_t& ld = ((Coeff_t*)&v._odata[oi]._internal._internal[s]._internal[c])[ii];
int ti = 12*lti + 3*s + c;
buf[2*ti+0] = ld.real();
buf[2*ti+1] = ld.imag();
}
}
}
}
int globalToLocalCanonicalBlock(int slot,const std::vector<int>& src_nodes,int nb) {
// processor coordinate
int _nd = (int)src_nodes.size();
std::vector<int> _src_nodes = src_nodes;
std::vector<int> pco(_nd);
Lexicographic::CoorFromIndex(pco,slot,_src_nodes);
std::vector<int> cpco = { pco[1], pco[2], pco[3], pco[4], pco[0] };
// get local block
std::vector<int> _nbc = { _nb[1], _nb[2], _nb[3], _nb[4], _nb[0] };
assert(_nd == 5);
std::vector<int> c_src_local_blocks(_nd);
for (int i=0;i<_nd;i++) {
assert(_grid->_fdimensions[i] % (src_nodes[i] * _bs[i]) == 0);
c_src_local_blocks[(i+4) % 5] = _grid->_fdimensions[i] / src_nodes[i] / _bs[i];
}
std::vector<int> cbcoor(_nd); // coordinate of block in slot in canonical form
Lexicographic::CoorFromIndex(cbcoor,nb,c_src_local_blocks);
// cpco, cbcoor
std::vector<int> clbcoor(_nd);
for (int i=0;i<_nd;i++) {
int cgcoor = cpco[i] * c_src_local_blocks[i] + cbcoor[i]; // global block coordinate
int pcoor = cgcoor / _nbc[i]; // processor coordinate in my Grid
int tpcoor = _grid->_processor_coor[(i+1)%5];
if (pcoor != tpcoor)
return -1;
clbcoor[i] = cgcoor - tpcoor * _nbc[i]; // canonical local block coordinate for canonical dimension i
}
int lnb;
Lexicographic::IndexFromCoor(clbcoor,lnb,_nbc);
//std::cout << "Mapped slot = " << slot << " nb = " << nb << " to " << lnb << std::endl;
return lnb;
}
};
}

81
tests/lanczos/FieldBasisVector.h Normal file
View File

@ -0,0 +1,81 @@
namespace Grid {
template<class Field>
class BasisFieldVector {
public:
int _Nm;
typedef typename Field::scalar_type Coeff_t;
typedef typename Field::vector_type vCoeff_t;
typedef typename Field::vector_object vobj;
typedef typename vobj::scalar_object sobj;
std::vector<Field> _v; // _Nfull vectors
void report(int n,GridBase* value) {
std::cout << GridLogMessage << "BasisFieldVector allocated:\n";
std::cout << GridLogMessage << " Delta N = " << n << "\n";
std::cout << GridLogMessage << " Size of full vectors (size) = " <<
((double)n*sizeof(vobj)*value->oSites() / 1024./1024./1024.) << " GB\n";
std::cout << GridLogMessage << " Size = " << _v.size() << " Capacity = " << _v.capacity() << std::endl;
value->Barrier();
#ifdef __linux
if (value->IsBoss()) {
system("cat /proc/meminfo");
}
#endif
value->Barrier();
}
BasisFieldVector(int Nm,GridBase* value) : _Nm(Nm), _v(Nm,value) {
report(Nm,value);
}
~BasisFieldVector() {
}
Field& operator[](int i) {
return _v[i];
}
void orthogonalize(Field& w, int k) {
basisOrthogonalize(_v,w,k);
}
void rotate(Eigen::MatrixXd& Qt,int j0, int j1, int k0,int k1,int Nm) {
basisRotate(_v,Qt,j0,j1,k0,k1,Nm);
}
size_t size() const {
return _Nm;
}
void resize(int n) {
if (n > _Nm)
_v.reserve(n);
_v.resize(n,_v[0]._grid);
if (n < _Nm)
_v.shrink_to_fit();
report(n - _Nm,_v[0]._grid);
_Nm = n;
}
void sortInPlace(std::vector<RealD>& sort_vals, bool reverse) {
basisSortInPlace(_v,sort_vals,reverse);
}
void deflate(const std::vector<RealD>& eval,const Field& src_orig,Field& result) {
basisDeflate(_v,eval,src_orig,result);
}
};
}

47
tests/lanczos/Test_dwf_compressed_lanczos.cc
View File

@ -21,7 +21,14 @@
(ortho krylov low poly); and then fix up lowest say 200 eigenvalues by 1 run with high-degree poly (600 could be enough)
*/
#include <Grid/Grid.h>
#include <Grid/algorithms/iterative/BlockImplicitlyRestartedLanczos/BlockImplicitlyRestartedLanczos.h>
#include <Grid/algorithms/iterative/ImplicitlyRestartedLanczos.h>
/////////////////////////////////////////////////////////////////////////////
// The following are now decoupled from the Lanczos and deal with grids.
// Safe to replace functionality
/////////////////////////////////////////////////////////////////////////////
#include "BlockedGrid.h"
#include "FieldBasisVector.h"
#include "BlockProjector.h"
#include "FieldVectorIO.h"
#include "Params.h"
@ -93,19 +100,6 @@ void write_history(char* fn, std::vector<RealD>& hist) {
fclose(f);
}
template<typename Field>
class FunctionHermOp : public LinearFunction<Field> {
public:
OperatorFunction<Field> & _poly;
LinearOperatorBase<Field> &_Linop;
FunctionHermOp(OperatorFunction<Field> & poly,LinearOperatorBase<Field>& linop) : _poly(poly), _Linop(linop) {
}
void operator()(const Field& in, Field& out) {
_poly(_Linop,in,out);
}
};
template<typename Field>
class CheckpointedLinearFunction : public LinearFunction<Field> {
@ -261,19 +255,6 @@ public:
}
};
template<typename Field>
class PlainHermOp : public LinearFunction<Field> {
public:
LinearOperatorBase<Field> &_Linop;
PlainHermOp(LinearOperatorBase<Field>& linop) : _Linop(linop) {
}
void operator()(const Field& in, Field& out) {
_Linop.HermOp(in,out);
}
};
template<typename vtype, int N > using CoarseSiteFieldGeneral = iScalar< iVector<vtype, N> >;
template<int N> using CoarseSiteFieldD = CoarseSiteFieldGeneral< vComplexD, N >;
template<int N> using CoarseSiteFieldF = CoarseSiteFieldGeneral< vComplexF, N >;
@ -319,7 +300,7 @@ void CoarseGridLanczos(BlockProjector<Field>& pr,RealD alpha2,RealD beta,int Npo
Op2 = &Op2plain;
}
ProjectedHermOp<CoarseLatticeFermion<Nstop1>,LatticeFermion> Op2nopoly(pr,HermOp);
BlockImplicitlyRestartedLanczos<CoarseLatticeFermion<Nstop1> > IRL2(*Op2,*Op2,Nstop2,Nk2,Nm2,resid2,betastp2,MaxIt,MinRes2);
ImplicitlyRestartedLanczos<CoarseLatticeFermion<Nstop1> > IRL2(*Op2,*Op2,Nstop2,Nk2,Nm2,resid2,MaxIt,betastp2,MinRes2);
src_coarse = 1.0;
@ -350,7 +331,7 @@ void CoarseGridLanczos(BlockProjector<Field>& pr,RealD alpha2,RealD beta,int Npo
) {
IRL2.calc(eval2,coef,src_coarse,Nconv,true,SkipTest2);
IRL2.calc(eval2,coef._v,src_coarse,Nconv,true);
coef.resize(Nstop2);
eval2.resize(Nstop2);
@ -450,6 +431,7 @@ void CoarseGridLanczos(BlockProjector<Field>& pr,RealD alpha2,RealD beta,int Npo
auto result = src_orig;
// undeflated solve
std::cout << GridLogMessage << " Undeflated solve "<<std::endl;
result = zero;
CG(HermOp, src_orig, result);
// if (UCoarseGrid->IsBoss())
@ -457,6 +439,7 @@ void CoarseGridLanczos(BlockProjector<Field>& pr,RealD alpha2,RealD beta,int Npo
// CG.ResHistory.clear();
// deflated solve with all eigenvectors
std::cout << GridLogMessage << " Deflated solve with all evectors"<<std::endl;
result = zero;
pr.deflate(coef,eval2,Nstop2,src_orig,result);
CG(HermOp, src_orig, result);
@ -465,6 +448,7 @@ void CoarseGridLanczos(BlockProjector<Field>& pr,RealD alpha2,RealD beta,int Npo
// CG.ResHistory.clear();
// deflated solve with non-blocked eigenvectors
std::cout << GridLogMessage << " Deflated solve with non-blocked evectors"<<std::endl;
result = zero;
pr.deflate(coef,eval1,Nstop1,src_orig,result);
CG(HermOp, src_orig, result);
@ -473,6 +457,7 @@ void CoarseGridLanczos(BlockProjector<Field>& pr,RealD alpha2,RealD beta,int Npo
// CG.ResHistory.clear();
// deflated solve with all eigenvectors and original eigenvalues from proj
std::cout << GridLogMessage << " Deflated solve with all eigenvectors and original eigenvalues from proj"<<std::endl;
result = zero;
pr.deflate(coef,eval3,Nstop2,src_orig,result);
CG(HermOp, src_orig, result);
@ -641,7 +626,7 @@ int main (int argc, char ** argv) {
}
// First round of Lanczos to get low mode basis
BlockImplicitlyRestartedLanczos<LatticeFermion> IRL1(Op1,Op1test,Nstop1,Nk1,Nm1,resid1,betastp1,MaxIt,MinRes1);
ImplicitlyRestartedLanczos<LatticeFermion> IRL1(Op1,Op1test,Nstop1,Nk1,Nm1,resid1,MaxIt,betastp1,MinRes1);
int Nconv;
char tag[1024];
@ -650,7 +635,7 @@ int main (int argc, char ** argv) {
if (simple_krylov_basis) {
quick_krylov_basis(evec,src,Op1,Nstop1);
} else {
IRL1.calc(eval1,evec,src,Nconv,false,1);
IRL1.calc(eval1,evec._v,src,Nconv,false);
}
evec.resize(Nstop1); // and throw away superfluous
eval1.resize(Nstop1);

254
tests/lanczos/Test_dwf_compressed_lanczos_reorg.cc Normal file
View File

@ -0,0 +1,254 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_dwf_compressed_lanczos_reorg.cc
Copyright (C) 2017
Author: Leans heavily on Christoph Lehner's code
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
/*
* Reimplement the badly named "multigrid" lanczos as compressed Lanczos using the features
* in Grid that were intended to be used to support blocked Aggregates, from
*/
#include <Grid/Grid.h>
#include <Grid/algorithms/iterative/ImplicitlyRestartedLanczos.h>
#include <Grid/algorithms/iterative/LocalCoherenceLanczos.h>
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
template<class Fobj,class CComplex,int nbasis>
class LocalCoherenceLanczosScidac : public LocalCoherenceLanczos<Fobj,CComplex,nbasis>
{
public:
typedef iVector<CComplex,nbasis > CoarseSiteVector;
typedef Lattice<CoarseSiteVector> CoarseField;
typedef Lattice<CComplex> CoarseScalar; // used for inner products on fine field
typedef Lattice<Fobj> FineField;
LocalCoherenceLanczosScidac(GridBase *FineGrid,GridBase *CoarseGrid,
LinearOperatorBase<FineField> &FineOp,
int checkerboard)
// Base constructor
: LocalCoherenceLanczos<Fobj,CComplex,nbasis>(FineGrid,CoarseGrid,FineOp,checkerboard)
{};
void checkpointFine(std::string evecs_file,std::string evals_file)
{
assert(this->_Aggregate.subspace.size()==nbasis);
emptyUserRecord record;
Grid::QCD::ScidacWriter WR;
WR.open(evecs_file);
for(int k=0;k<nbasis;k++) {
WR.writeScidacFieldRecord(this->_Aggregate.subspace[k],record);
}
WR.close();
XmlWriter WRx(evals_file);
write(WRx,"evals",this->evals_fine);
}
void checkpointFineRestore(std::string evecs_file,std::string evals_file)
{
this->evals_fine.resize(nbasis);
this->_Aggregate.subspace.resize(nbasis,this->_FineGrid);
std::cout << GridLogIRL<< "checkpointFineRestore: Reading evals from "<<evals_file<<std::endl;
XmlReader RDx(evals_file);
read(RDx,"evals",this->evals_fine);
assert(this->evals_fine.size()==nbasis);
std::cout << GridLogIRL<< "checkpointFineRestore: Reading evecs from "<<evecs_file<<std::endl;
emptyUserRecord record;
Grid::QCD::ScidacReader RD ;
RD.open(evecs_file);
for(int k=0;k<nbasis;k++) {
this->_Aggregate.subspace[k].checkerboard=this->_checkerboard;
RD.readScidacFieldRecord(this->_Aggregate.subspace[k],record);
}
RD.close();
}
void checkpointCoarse(std::string evecs_file,std::string evals_file)
{
int n = this->evec_coarse.size();
emptyUserRecord record;
Grid::QCD::ScidacWriter WR;
WR.open(evecs_file);
for(int k=0;k<n;k++) {
WR.writeScidacFieldRecord(this->evec_coarse[k],record);
}
WR.close();
XmlWriter WRx(evals_file);
write(WRx,"evals",this->evals_coarse);
}
void checkpointCoarseRestore(std::string evecs_file,std::string evals_file,int nvec)
{
std::cout << "resizing coarse vecs to " << nvec<< std::endl;
this->evals_coarse.resize(nvec);
this->evec_coarse.resize(nvec,this->_CoarseGrid);
std::cout << GridLogIRL<< "checkpointCoarseRestore: Reading evals from "<<evals_file<<std::endl;
XmlReader RDx(evals_file);
read(RDx,"evals",this->evals_coarse);
assert(this->evals_coarse.size()==nvec);
emptyUserRecord record;
std::cout << GridLogIRL<< "checkpointCoarseRestore: Reading evecs from "<<evecs_file<<std::endl;
Grid::QCD::ScidacReader RD ;
RD.open(evecs_file);
for(int k=0;k<nvec;k++) {
RD.readScidacFieldRecord(this->evec_coarse[k],record);
}
RD.close();
}
};
int main (int argc, char ** argv) {
Grid_init(&argc,&argv);
GridLogIRL.TimingMode(1);
LocalCoherenceLanczosParams Params;
{
Params.omega.resize(10);
Params.blockSize.resize(5);
XmlWriter writer("Params_template.xml");
write(writer,"Params",Params);
std::cout << GridLogMessage << " Written Params_template.xml" <<std::endl;
}
{
XmlReader reader(std::string("./Params.xml"));
read(reader, "Params", Params);
}
int Ls = (int)Params.omega.size();
RealD mass = Params.mass;
RealD M5 = Params.M5;
std::vector<int> blockSize = Params.blockSize;
// Grids
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(),
GridDefaultSimd(Nd,vComplex::Nsimd()),
GridDefaultMpi());
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
std::vector<int> fineLatt = GridDefaultLatt();
int dims=fineLatt.size();
assert(blockSize.size()==dims+1);
std::vector<int> coarseLatt(dims);
std::vector<int> coarseLatt5d ;
for (int d=0;d<coarseLatt.size();d++){
coarseLatt[d] = fineLatt[d]/blockSize[d]; assert(coarseLatt[d]*blockSize[d]==fineLatt[d]);
}
std::cout << GridLogMessage<< " 5d coarse lattice is ";
for (int i=0;i<coarseLatt.size();i++){
std::cout << coarseLatt[i]<<"x";
}
int cLs = Ls/blockSize[dims]; assert(cLs*blockSize[dims]==Ls);
std::cout << cLs<<std::endl;
GridCartesian * CoarseGrid4 = SpaceTimeGrid::makeFourDimGrid(coarseLatt, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
GridRedBlackCartesian * CoarseGrid4rb = SpaceTimeGrid::makeFourDimRedBlackGrid(CoarseGrid4);
GridCartesian * CoarseGrid5 = SpaceTimeGrid::makeFiveDimGrid(cLs,CoarseGrid4);
GridRedBlackCartesian * CoarseGrid5rb = SpaceTimeGrid::makeFourDimRedBlackGrid(CoarseGrid5);
// Gauge field
LatticeGaugeField Umu(UGrid);
FieldMetaData header;
NerscIO::readConfiguration(Umu,header,Params.config);
std::cout << GridLogMessage << "Lattice dimensions: " << GridDefaultLatt() << " Ls: " << Ls << std::endl;
// ZMobius EO Operator
ZMobiusFermionR Ddwf(Umu, *FGrid, *FrbGrid, *UGrid, *UrbGrid, mass, M5, Params.omega,1.,0.);
SchurDiagTwoOperator<ZMobiusFermionR,LatticeFermion> HermOp(Ddwf);
// Eigenvector storage
LanczosParams fine =Params.FineParams;
LanczosParams coarse=Params.CoarseParams;
const int Ns1 = fine.Nstop; const int Ns2 = coarse.Nstop;
const int Nk1 = fine.Nk; const int Nk2 = coarse.Nk;
const int Nm1 = fine.Nm; const int Nm2 = coarse.Nm;
std::cout << GridLogMessage << "Keep " << fine.Nstop << " fine vectors" << std::endl;
std::cout << GridLogMessage << "Keep " << coarse.Nstop << " coarse vectors" << std::endl;
assert(Nm2 >= Nm1);
const int nbasis= 60;
assert(nbasis==Ns1);
LocalCoherenceLanczosScidac<vSpinColourVector,vTComplex,nbasis> _LocalCoherenceLanczos(FrbGrid,CoarseGrid5rb,HermOp,Odd);
std::cout << GridLogMessage << "Constructed LocalCoherenceLanczos" << std::endl;
assert( (Params.doFine)||(Params.doFineRead));
if ( Params.doFine ) {
std::cout << GridLogMessage << "Performing fine grid IRL Nstop "<< Ns1 << " Nk "<<Nk1<<" Nm "<<Nm1<< std::endl;
_LocalCoherenceLanczos.calcFine(fine.Cheby,
fine.Nstop,fine.Nk,fine.Nm,
fine.resid,fine.MaxIt,
fine.betastp,fine.MinRes);
std::cout << GridLogIRL<<"Checkpointing Fine evecs"<<std::endl;
_LocalCoherenceLanczos.checkpointFine(std::string("evecs.scidac"),std::string("evals.xml"));
_LocalCoherenceLanczos.testFine(fine.resid*100.0); // Coarse check
_LocalCoherenceLanczos.Orthogonalise();
}
if ( Params.doFineRead ) {
_LocalCoherenceLanczos.checkpointFineRestore(std::string("evecs.scidac"),std::string("evals.xml"));
_LocalCoherenceLanczos.testFine(fine.resid*100.0); // Coarse check
_LocalCoherenceLanczos.Orthogonalise();
}
if ( Params.doCoarse ) {
std::cout << GridLogMessage << "Orthogonalising " << nbasis<<" Nm "<<Nm2<< std::endl;
std::cout << GridLogMessage << "Performing coarse grid IRL Nstop "<< Ns2<< " Nk "<<Nk2<<" Nm "<<Nm2<< std::endl;
_LocalCoherenceLanczos.calcCoarse(coarse.Cheby,Params.Smoother,Params.coarse_relax_tol,
coarse.Nstop, coarse.Nk,coarse.Nm,
coarse.resid, coarse.MaxIt,
coarse.betastp,coarse.MinRes);
std::cout << GridLogIRL<<"Checkpointing coarse evecs"<<std::endl;
_LocalCoherenceLanczos.checkpointCoarse(std::string("evecs.coarse.scidac"),std::string("evals.coarse.xml"));
}
if ( Params.doCoarseRead ) {
// Verify we can reread ???
_LocalCoherenceLanczos.checkpointCoarseRestore(std::string("evecs.coarse.scidac"),std::string("evals.coarse.xml"),coarse.Nstop);
_LocalCoherenceLanczos.testCoarse(coarse.resid*100.0,Params.Smoother,Params.coarse_relax_tol); // Coarse check
}
Grid_finalize();
}

11
tests/lanczos/Test_dwf_lanczos.cc
View File

@ -84,11 +84,12 @@ int main (int argc, char ** argv)
std::vector<double> Coeffs { 0.,-1.};
Polynomial<FermionField> PolyX(Coeffs);
Chebyshev<FermionField> Cheb(0.2,5.,11);
// ChebyshevLanczos<LatticeFermion> Cheb(9.,1.,0.,20);
// Cheb.csv(std::cout);
// exit(-24);
ImplicitlyRestartedLanczos<FermionField> IRL(HermOp,Cheb,Nstop,Nk,Nm,resid,MaxIt);
Chebyshev<FermionField> Cheby(0.2,5.,11);
FunctionHermOp<FermionField> OpCheby(Cheby,HermOp);
PlainHermOp<FermionField> Op (HermOp);
ImplicitlyRestartedLanczos<FermionField> IRL(OpCheby,Op,Nstop,Nk,Nm,resid,MaxIt);
std::vector<RealD> eval(Nm);

10
tests/lanczos/Test_synthetic_lanczos.cc
View File

@ -119,12 +119,13 @@ int main (int argc, char ** argv)
RealD beta = 0.1;
RealD mu = 0.0;
int order = 11;
ChebyshevLanczos<LatticeComplex> Cheby(alpha,beta,mu,order);
Chebyshev<LatticeComplex> Cheby(alpha,beta,order);
std::ofstream file("cheby.dat");
Cheby.csv(file);
HermOpOperatorFunction<LatticeComplex> X;
DumbOperator<LatticeComplex> HermOp(grid);
FunctionHermOp<LatticeComplex> OpCheby(Cheby,HermOp);
PlainHermOp<LatticeComplex> Op(HermOp);
const int Nk = 40;
const int Nm = 80;
@ -133,8 +134,9 @@ int main (int argc, char ** argv)
int Nconv;
RealD eresid = 1.0e-6;
ImplicitlyRestartedLanczos<LatticeComplex> IRL(HermOp,X,Nk,Nk,Nm,eresid,Nit);
ImplicitlyRestartedLanczos<LatticeComplex> ChebyIRL(HermOp,Cheby,Nk,Nk,Nm,eresid,Nit);
ImplicitlyRestartedLanczos<LatticeComplex> IRL(Op,Op,Nk,Nk,Nm,eresid,Nit);
ImplicitlyRestartedLanczos<LatticeComplex> ChebyIRL(OpCheby,Op,Nk,Nk,Nm,eresid,Nit);
LatticeComplex src(grid); gaussian(RNG,src);
{

9
tests/lanczos/Test_wilson_lanczos.cc
View File

@ -86,9 +86,12 @@ int main(int argc, char** argv) {
std::vector<double> Coeffs{0, 1.};
Polynomial<FermionField> PolyX(Coeffs);
Chebyshev<FermionField> Cheb(0.0, 10., 12);
ImplicitlyRestartedLanczos<FermionField> IRL(HermOp, PolyX, Nstop, Nk, Nm,
resid, MaxIt);
Chebyshev<FermionField> Cheby(0.0, 10., 12);
FunctionHermOp<FermionField> OpCheby(Cheby,HermOp);
PlainHermOp<FermionField> Op (HermOp);
ImplicitlyRestartedLanczos<FermionField> IRL(OpCheby, Op, Nstop, Nk, Nm, resid, MaxIt);
std::vector<RealD> eval(Nm);
FermionField src(FGrid);

6
tests/solver/Test_dwf_hdcr.cc
View File

@ -555,13 +555,13 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage << "Calling Aggregation class to build subspace" <<std::endl;
std::cout<<GridLogMessage << "**************************************************"<< std::endl;
MdagMLinearOperator<DomainWallFermionR,LatticeFermion> HermDefOp(Ddwf);
Subspace Aggregates(Coarse5d,FGrid);
Subspace Aggregates(Coarse5d,FGrid,0);
// Aggregates.CreateSubspace(RNG5,HermDefOp,nbasis);
assert ( (nbasis & 0x1)==0);
int nb=nbasis/2;
std::cout<<GridLogMessage << " nbasis/2 = "<<nb<<std::endl;
// Aggregates.CreateSubspace(RNG5,HermDefOp,nb);
Aggregates.CreateSubspaceLanczos(RNG5,HermDefOp,nb);
Aggregates.CreateSubspace(RNG5,HermDefOp,nb);
// Aggregates.CreateSubspaceLanczos(RNG5,HermDefOp,nb);
for(int n=0;n<nb;n++){
G5R5(Aggregates.subspace[n+nb],Aggregates.subspace[n]);
std::cout<<GridLogMessage<<n<<" subspace "<<norm2(Aggregates.subspace[n+nb])<<" "<<norm2(Aggregates.subspace[n]) <<std::endl;

27
tests/solver/Test_dwf_mrhs_cg.cc
View File

@ -52,15 +52,28 @@ int main (int argc, char ** argv)
GridRedBlackCartesian * rbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
int nrhs = UGrid->RankCount() ;
/////////////////////////////////////////////
// Split into 1^4 mpi communicators
/////////////////////////////////////////////
for(int i=0;i<argc;i++){
if(std::string(argv[i]) == "--split"){
for(int k=0;k<mpi_layout.size();k++){
std::stringstream ss;
ss << argv[i+1+k];
ss >> mpi_split[k];
}
break;
}
}
int nrhs = 1;
int me;
for(int i=0;i<mpi_layout.size();i++) nrhs *= (mpi_layout[i]/mpi_split[i]);
GridCartesian * SGrid = new GridCartesian(GridDefaultLatt(),
GridDefaultSimd(Nd,vComplex::Nsimd()),
mpi_split,
*UGrid);
*UGrid,me);
GridCartesian * SFGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,SGrid);
GridRedBlackCartesian * SrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(SGrid);
@ -70,7 +83,6 @@ int main (int argc, char ** argv)
// Set up the problem as a 4d spreadout job
///////////////////////////////////////////////
std::vector<int> seeds({1,2,3,4});
GridParallelRNG pRNG(UGrid ); pRNG.SeedFixedIntegers(seeds);
GridParallelRNG pRNG5(FGrid); pRNG5.SeedFixedIntegers(seeds);
std::vector<FermionField> src(nrhs,FGrid);
@ -93,7 +105,7 @@ int main (int argc, char ** argv)
emptyUserRecord record;
std::string file("./scratch.scidac");
std::string filef("./scratch.scidac.ferm");
int me = UGrid->ThisRank();
LatticeGaugeField s_Umu(SGrid);
FermionField s_src(SFGrid);
FermionField s_src_split(SFGrid);
@ -169,7 +181,7 @@ int main (int argc, char ** argv)
for(int n=0;n<nrhs;n++){
FGrid->Barrier();
if ( n==me ) {
std::cerr << GridLogMessage<<"Split "<< me << " " << norm2(s_src_split) << " " << norm2(s_src)<< " diff " << norm2(s_tmp)<<std::endl;
std::cout << GridLogMessage<<"Split "<< me << " " << norm2(s_src_split) << " " << norm2(s_src)<< " diff " << norm2(s_tmp)<<std::endl;
}
FGrid->Barrier();
}
@ -190,7 +202,7 @@ int main (int argc, char ** argv)
MdagMLinearOperator<DomainWallFermionR,FermionField> HermOp(Ddwf);
MdagMLinearOperator<DomainWallFermionR,FermionField> HermOpCk(Dchk);
ConjugateGradient<FermionField> CG((1.0e-8/(me+1)),10000);
ConjugateGradient<FermionField> CG((1.0e-5/(me+1)),10000);
s_res = zero;
CG(HermOp,s_src,s_res);
@ -218,7 +230,6 @@ int main (int argc, char ** argv)
std::cout << " diff " <<tmp<<std::endl;
}
*/
std::cout << GridLogMessage<< "Checking the residuals"<<std::endl;
for(int n=0;n<nrhs;n++){
HermOpCk.HermOp(result[n],tmp); tmp = tmp - src[n];

99
tests/solver/Test_dwf_mrhs_cg_mpi.cc
View File

@ -1,4 +1,4 @@
/*************************************************************************************
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
@ -47,20 +47,36 @@ int main (int argc, char ** argv)
std::vector<int> mpi_layout = GridDefaultMpi();
std::vector<int> mpi_split (mpi_layout.size(),1);
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(),
GridDefaultSimd(Nd,vComplex::Nsimd()),
GridDefaultMpi());
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
GridRedBlackCartesian * rbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
int nrhs = UGrid->RankCount() ;
/////////////////////////////////////////////
// Split into 1^4 mpi communicators
/////////////////////////////////////////////
for(int i=0;i<argc;i++){
if(std::string(argv[i]) == "--split"){
for(int k=0;k<mpi_layout.size();k++){
std::stringstream ss;
ss << argv[i+1+k];
ss >> mpi_split[k];
}
break;
}
}
int nrhs = 1;
int me;
for(int i=0;i<mpi_layout.size();i++) nrhs *= (mpi_layout[i]/mpi_split[i]);
GridCartesian * SGrid = new GridCartesian(GridDefaultLatt(),
GridDefaultSimd(Nd,vComplex::Nsimd()),
mpi_split,
*UGrid);
*UGrid,me);
GridCartesian * SFGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,SGrid);
GridRedBlackCartesian * SrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(SGrid);
@ -78,16 +94,46 @@ int main (int argc, char ** argv)
std::vector<FermionField> result(nrhs,FGrid);
FermionField tmp(FGrid);
for(int s=0;s<nrhs;s++) random(pRNG5,src[s]);
for(int s=0;s<nrhs;s++) result[s]=zero;
#undef LEXICO_TEST
#ifdef LEXICO_TEST
{
LatticeFermion lex(FGrid); lex = zero;
LatticeFermion ftmp(FGrid);
Integer stride =10000;
double nrm;
LatticeComplex coor(FGrid);
for(int d=0;d<5;d++){
LatticeCoordinate(coor,d);
ftmp = stride;
ftmp = ftmp * coor;
lex = lex + ftmp;
stride=stride/10;
}
for(int s=0;s<nrhs;s++) {
src[s]=lex;
ftmp = 1000*1000*s;
src[s] = src[s] + ftmp;
}
}
#else
for(int s=0;s<nrhs;s++) {
random(pRNG5,src[s]);
tmp = 100.0*s;
src[s] = (src[s] * 0.1) + tmp;
std::cout << " src ]"<<s<<"] "<<norm2(src[s])<<std::endl;
}
#endif
for(int n =0 ; n< nrhs ; n++) {
std::cout << " src"<<n<<"\n"<< src[n] <<std::endl;
}
LatticeGaugeField Umu(UGrid); SU3::HotConfiguration(pRNG,Umu);
/////////////////
// MPI only sends
/////////////////
int me = UGrid->ThisRank();
LatticeGaugeField s_Umu(SGrid);
FermionField s_src(SFGrid);
FermionField s_tmp(SFGrid);
@ -98,6 +144,36 @@ int main (int argc, char ** argv)
///////////////////////////////////////////////////////////////
Grid_split (Umu,s_Umu);
Grid_split (src,s_src);
std::cout << " split rank " <<me << " s_src "<<norm2(s_src)<<std::endl;
std::cout << " s_src\n "<< s_src <<std::endl;
#ifdef LEXICO_TEST
FermionField s_src_tmp(SFGrid);
FermionField s_src_diff(SFGrid);
{
LatticeFermion lex(SFGrid); lex = zero;
LatticeFermion ftmp(SFGrid);
Integer stride =10000;
double nrm;
LatticeComplex coor(SFGrid);
for(int d=0;d<5;d++){
LatticeCoordinate(coor,d);
ftmp = stride;
ftmp = ftmp * coor;
lex = lex + ftmp;
stride=stride/10;
}
s_src_tmp=lex;
ftmp = 1000*1000*me;
s_src_tmp = s_src_tmp + ftmp;
}
s_src_diff = s_src_tmp - s_src;
std::cout << " s_src_diff " << norm2(s_src_diff)<<std::endl;
std::cout << " s_src \n" << s_src << std::endl;
std::cout << " s_src_tmp \n" << s_src_tmp << std::endl;
std::cout << " s_src_diff \n" << s_src_diff << std::endl;
#endif
///////////////////////////////////////////////////////////////
// Set up N-solvers as trivially parallel
@ -113,10 +189,11 @@ int main (int argc, char ** argv)
MdagMLinearOperator<DomainWallFermionR,FermionField> HermOp(Ddwf);
MdagMLinearOperator<DomainWallFermionR,FermionField> HermOpCk(Dchk);
ConjugateGradient<FermionField> CG((1.0e-8/(me+1)),10000);
ConjugateGradient<FermionField> CG((1.0e-5),10000);
s_res = zero;
CG(HermOp,s_src,s_res);
std::cout << " s_res norm "<<norm2(s_res)<<std::endl;
/////////////////////////////////////////////////////////////
// Report how long they all took
/////////////////////////////////////////////////////////////
@ -134,10 +211,12 @@ int main (int argc, char ** argv)
std::cout << GridLogMessage<< "Unsplitting the result"<<std::endl;
Grid_unsplit(result,s_res);
std::cout << GridLogMessage<< "Checking the residuals"<<std::endl;
for(int n=0;n<nrhs;n++){
std::cout << " res["<<n<<"] norm "<<norm2(result[n])<<std::endl;
HermOpCk.HermOp(result[n],tmp); tmp = tmp - src[n];
std::cout << GridLogMessage<<" resid["<<n<<"] "<< norm2(tmp)<<std::endl;
std::cout << GridLogMessage<<" resid["<<n<<"] "<< norm2(tmp)/norm2(src[n])<<std::endl;
}
Grid_finalize();

9
tests/solver/Test_dwf_mrhs_cg_mpieo.cc
View File

@ -47,7 +47,9 @@ int main (int argc, char ** argv)
std::vector<int> mpi_layout = GridDefaultMpi();
std::vector<int> mpi_split (mpi_layout.size(),1);
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(),
GridDefaultSimd(Nd,vComplex::Nsimd()),
GridDefaultMpi());
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
GridRedBlackCartesian * rbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
@ -57,10 +59,11 @@ int main (int argc, char ** argv)
/////////////////////////////////////////////
// Split into 1^4 mpi communicators
/////////////////////////////////////////////
int me;
GridCartesian * SGrid = new GridCartesian(GridDefaultLatt(),
GridDefaultSimd(Nd,vComplex::Nsimd()),
mpi_split,
*UGrid);
*UGrid,me);
GridCartesian * SFGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,SGrid);
GridRedBlackCartesian * SrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(SGrid);
@ -89,8 +92,6 @@ int main (int argc, char ** argv)
/////////////////
// MPI only sends
/////////////////
int me = UGrid->ThisRank();
LatticeGaugeField s_Umu(SGrid);
FermionField s_src(SFGrid);
FermionField s_src_e(SFrbGrid);

157
tests/solver/Test_split_grid.cc Normal file
View File

@ -0,0 +1,157 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_dwf_mrhs_cg.cc
Copyright (C) 2015
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Grid/Grid.h>
#include <Grid/algorithms/iterative/BlockConjugateGradient.h>
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
int main (int argc, char ** argv)
{
typedef typename DomainWallFermionR::FermionField FermionField;
typedef typename DomainWallFermionR::ComplexField ComplexField;
typename DomainWallFermionR::ImplParams params;
const int Ls=4;
Grid_init(&argc,&argv);
std::vector<int> latt_size = GridDefaultLatt();
std::vector<int> simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
std::vector<int> mpi_split (mpi_layout.size(),1);
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
GridRedBlackCartesian * rbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
/////////////////////////////////////////////
// Split into 1^4 mpi communicators
/////////////////////////////////////////////
for(int i=0;i<argc;i++){
if(std::string(argv[i]) == "--split"){
for(int k=0;k<mpi_layout.size();k++){
std::stringstream ss;
ss << argv[i+1+k];
ss >> mpi_split[k];
}
break;
}
}
int nrhs = 1;
for(int i=0;i<mpi_layout.size();i++) nrhs *= (mpi_layout[i]/mpi_split[i]);
GridCartesian * SGrid = new GridCartesian(GridDefaultLatt(),
GridDefaultSimd(Nd,vComplex::Nsimd()),
mpi_split,
*UGrid);
GridCartesian * SFGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,SGrid);
GridRedBlackCartesian * SrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(SGrid);
GridRedBlackCartesian * SFrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,SGrid);
///////////////////////////////////////////////
// Set up the problem as a 4d spreadout job
///////////////////////////////////////////////
std::vector<int> seeds({1,2,3,4});
GridParallelRNG pRNG(UGrid ); pRNG.SeedFixedIntegers(seeds);
GridParallelRNG pRNG5(FGrid); pRNG5.SeedFixedIntegers(seeds);
std::vector<FermionField> src(nrhs,FGrid);
std::vector<FermionField> src_chk(nrhs,FGrid);
std::vector<FermionField> result(nrhs,FGrid);
FermionField tmp(FGrid);
for(int s=0;s<nrhs;s++) random(pRNG5,src[s]);
for(int s=0;s<nrhs;s++) result[s]=zero;
LatticeGaugeField Umu(UGrid); SU3::HotConfiguration(pRNG,Umu);
/////////////////
// MPI only sends
/////////////////
int me = UGrid->ThisRank();
LatticeGaugeField s_Umu(SGrid);
FermionField s_src(SFGrid);
FermionField s_tmp(SFGrid);
FermionField s_res(SFGrid);
///////////////////////////////////////////////////////////////
// split the source out using MPI instead of I/O
///////////////////////////////////////////////////////////////
Grid_split (Umu,s_Umu);
Grid_split (src,s_src);
///////////////////////////////////////////////////////////////
// Set up N-solvers as trivially parallel
///////////////////////////////////////////////////////////////
RealD mass=0.01;
RealD M5=1.8;
DomainWallFermionR Dchk(Umu,*FGrid,*FrbGrid,*UGrid,*rbGrid,mass,M5);
DomainWallFermionR Ddwf(s_Umu,*SFGrid,*SFrbGrid,*SGrid,*SrbGrid,mass,M5);
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
std::cout << GridLogMessage << " Calling DWF CG "<<std::endl;
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
MdagMLinearOperator<DomainWallFermionR,FermionField> HermOp(Ddwf);
MdagMLinearOperator<DomainWallFermionR,FermionField> HermOpCk(Dchk);
ConjugateGradient<FermionField> CG((1.0e-8/(me+1)),10000);
s_res = zero;
CG(HermOp,s_src,s_res);
/////////////////////////////////////////////////////////////
// Report how long they all took
/////////////////////////////////////////////////////////////
std::vector<uint32_t> iterations(nrhs,0);
iterations[me] = CG.IterationsToComplete;
for(int n=0;n<nrhs;n++){
UGrid->GlobalSum(iterations[n]);
std::cout << GridLogMessage<<" Rank "<<n<<" "<< iterations[n]<<" CG iterations"<<std::endl;
}
/////////////////////////////////////////////////////////////
// Gather and residual check on the results
/////////////////////////////////////////////////////////////
std::cout << GridLogMessage<< "Unsplitting the result"<<std::endl;
Grid_unsplit(result,s_res);
std::cout << GridLogMessage<< "Checking the residuals"<<std::endl;
for(int n=0;n<nrhs;n++){
HermOpCk.HermOp(result[n],tmp); tmp = tmp - src[n];
std::cout << GridLogMessage<<" resid["<<n<<"] "<< norm2(tmp)<<std::endl;
}
Grid_finalize();
}

1
tests/solver/Test_staggered_cg_prec.cc
View File

@ -48,7 +48,6 @@ struct scal {
int main (int argc, char ** argv)
{
typedef typename ImprovedStaggeredFermionR::FermionField FermionField;
typedef typename ImprovedStaggeredFermionR::ComplexField ComplexField;
typename ImprovedStaggeredFermionR::ImplParams params;
Grid_init(&argc,&argv);

76
tests/solver/Test_staggered_cg_schur.cc Normal file
View File

@ -0,0 +1,76 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_wilson_cg_schur.cc
Copyright (C) 2015
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Grid/Grid.h>
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
template<class d>
struct scal {
d internal;
};
Gamma::Algebra Gmu [] = {
Gamma::Algebra::GammaX,
Gamma::Algebra::GammaY,
Gamma::Algebra::GammaZ,
Gamma::Algebra::GammaT
};
int main (int argc, char ** argv)
{
typedef typename ImprovedStaggeredFermionR::FermionField FermionField;
typename ImprovedStaggeredFermionR::ImplParams params;
Grid_init(&argc,&argv);
std::vector<int> latt_size = GridDefaultLatt();
std::vector<int> simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
GridRedBlackCartesian RBGrid(&Grid);
std::vector<int> seeds({1,2,3,4});
GridParallelRNG pRNG(&Grid); pRNG.SeedFixedIntegers(seeds);
LatticeGaugeField Umu(&Grid); SU3::HotConfiguration(pRNG,Umu);
FermionField src(&Grid); random(pRNG,src);
FermionField result(&Grid); result=zero;
FermionField resid(&Grid);
RealD mass=0.1;
ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass);
ConjugateGradient<FermionField> CG(1.0e-8,10000);
SchurRedBlackStaggeredSolve<FermionField> SchurSolver(CG);
SchurSolver(Ds,src,result);
Grid_finalize();
}