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de-hardcode the number of generators

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This commit is contained in:
Alessandro Lupo
2023-05-15 15:48:21 +01:00
parent 170aa7df01
commit 12a706e9b1
1 changed files with 11 additions and 11 deletions
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22
Grid/qcd/utils/GaugeGroupTwoIndex.h
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@@ -181,7 +181,7 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
iGroupMatrix<cplx> tmp; iGroupMatrix<cplx> tmp;
i2indTa = Zero(); i2indTa = Zero();
for (int a = 0; a < ncolour * ncolour - 1; a++) for (int a = 0; a < NumGenerators; a++)
GaugeGroup<ncolour, group_name>::generator(a, ta[a]); GaugeGroup<ncolour, group_name>::generator(a, ta[a]);
for (int a = 0; a < Dimension; a++) base(a, eij[a]); for (int a = 0; a < Dimension; a++) base(a, eij[a]);
@@ -197,7 +197,7 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
} }
static void printGenerators(void) { static void printGenerators(void) {
for (int gen = 0; gen < ncolour * ncolour - 1; gen++) { for (int gen = 0; gen < NumGenerators; gen++) {
TIMatrix i2indTa; TIMatrix i2indTa;
generator(gen, i2indTa); generator(gen, i2indTa);
std::cout << GridLogMessage << "Nc = " << ncolour << " t_" << gen std::cout << GridLogMessage << "Nc = " << ncolour << " t_" << gen
@@ -210,7 +210,7 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
TIMatrix i2indTa, i2indTb; TIMatrix i2indTa, i2indTb;
std::cout << GridLogMessage << "2IndexRep - Checking if traceless" std::cout << GridLogMessage << "2IndexRep - Checking if traceless"
<< std::endl; << std::endl;
for (int a = 0; a < ncolour * ncolour - 1; a++) { for (int a = 0; a < NumGenerators; a++) {
generator(a, i2indTa); generator(a, i2indTa);
std::cout << GridLogMessage << a << std::endl; std::cout << GridLogMessage << a << std::endl;
assert(norm2(trace(i2indTa)) < 1.0e-6); assert(norm2(trace(i2indTa)) < 1.0e-6);
@@ -219,7 +219,7 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
std::cout << GridLogMessage << "2IndexRep - Checking if antihermitean" std::cout << GridLogMessage << "2IndexRep - Checking if antihermitean"
<< std::endl; << std::endl;
for (int a = 0; a < ncolour * ncolour - 1; a++) { for (int a = 0; a < NumGenerators; a++) {
generator(a, i2indTa); generator(a, i2indTa);
std::cout << GridLogMessage << a << std::endl; std::cout << GridLogMessage << a << std::endl;
assert(norm2(adj(i2indTa) + i2indTa) < 1.0e-6); assert(norm2(adj(i2indTa) + i2indTa) < 1.0e-6);
@@ -229,8 +229,8 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
std::cout << GridLogMessage std::cout << GridLogMessage
<< "2IndexRep - Checking Tr[Ta*Tb]=delta(a,b)*(N +- 2)/2" << "2IndexRep - Checking Tr[Ta*Tb]=delta(a,b)*(N +- 2)/2"
<< std::endl; << std::endl;
for (int a = 0; a < ncolour * ncolour - 1; a++) { for (int a = 0; a < NumGenerators; a++) {
for (int b = 0; b < ncolour * ncolour - 1; b++) { for (int b = 0; b < NumGenerators; b++) {
generator(a, i2indTa); generator(a, i2indTa);
generator(b, i2indTb); generator(b, i2indTb);
@@ -252,7 +252,7 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
TIMatrix i2indTa; TIMatrix i2indTa;
out = Zero(); out = Zero();
for (int a = 0; a < ncolour * ncolour - 1; a++) { for (int a = 0; a < NumGenerators; a++) {
generator(a, i2indTa); generator(a, i2indTa);
la = peekColour(h, a) * i2indTa; la = peekColour(h, a) * i2indTa;
out += la; out += la;
@@ -270,7 +270,7 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
TIMatrix i2indTa; TIMatrix i2indTa;
Real coefficient = -2.0 / (ncolour + 2 * S) * scale; Real coefficient = -2.0 / (ncolour + 2 * S) * scale;
// 2/(Nc +/- 2) for the normalization of the trace in the two index rep // 2/(Nc +/- 2) for the normalization of the trace in the two index rep
for (int a = 0; a < ncolour * ncolour - 1; a++) { for (int a = 0; a < NumGenerators; a++) {
generator(a, i2indTa); generator(a, i2indTa);
pokeColour(h_out, real(trace(i2indTa * in)) * coefficient, a); pokeColour(h_out, real(trace(i2indTa * in)) * coefficient, a);
} }
@@ -282,19 +282,19 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
const LatticeTwoIndexMatrix &in, Real scale = 1.0) { const LatticeTwoIndexMatrix &in, Real scale = 1.0) {
conformable(h_out, in); conformable(h_out, in);
// to store the generators // to store the generators
static std::vector<TIMatrix> i2indTa(ncolour * ncolour - 1); static std::vector<TIMatrix> i2indTa(NumGenerators);
h_out = Zero(); h_out = Zero();
static bool precalculated = false; static bool precalculated = false;
if (!precalculated) { if (!precalculated) {
precalculated = true; precalculated = true;
for (int a = 0; a < ncolour * ncolour - 1; a++) generator(a, i2indTa[a]); for (int a = 0; a < NumGenerators; a++) generator(a, i2indTa[a]);
} }
Real coefficient = Real coefficient =
-2.0 / (ncolour + 2 * S) * scale; // 2/(Nc +/- 2) for the normalization -2.0 / (ncolour + 2 * S) * scale; // 2/(Nc +/- 2) for the normalization
// of the trace in the two index rep // of the trace in the two index rep
for (int a = 0; a < ncolour * ncolour - 1; a++) { for (int a = 0; a < NumGenerators; a++) {
auto tmp = real(trace(i2indTa[a] * in)) * coefficient; auto tmp = real(trace(i2indTa[a] * in)) * coefficient;
pokeColour(h_out, tmp, a); pokeColour(h_out, tmp, a);
} }