void SpinAdapted::InitBlocks::InitNewEnvironmentBlock(SpinBlock &environment, SpinBlock& environmentDot, SpinBlock &newEnvironment,
const SpinBlock &system, SpinBlock &systemDot, int leftState, int rightState,
const int &sys_add, const int &env_add, const bool &forward, const bool &direct,
const bool &onedot, const bool &nexact, const bool &useSlater, int integralIndex,
bool haveNormops, bool haveCompops, const bool& dot_with_sys, int constraint, const std::vector<SpinQuantum>& braquanta, const std::vector<SpinQuantum>& ketquanta) {
// now initialise environment Dot
int systemDotStart, systemDotEnd, environmentDotStart, environmentDotEnd, environmentStart, environmentEnd;
int systemDotSize = sys_add - 1;
int environmentDotSize = env_add - 1;
if (forward) {
systemDotStart = dmrginp.spinAdapted() ? *system.get_sites().rbegin () + 1 : (*system.get_sites().rbegin ())/2 + 1 ;
systemDotEnd = systemDotStart + systemDotSize;
environmentDotStart = systemDotEnd + 1;
environmentDotEnd = environmentDotStart + environmentDotSize;
environmentStart = environmentDotEnd + 1;
environmentEnd = dmrginp.spinAdapted() ? dmrginp.last_site() - 1 : dmrginp.last_site()/2 - 1;
} else {
systemDotStart = dmrginp.spinAdapted() ? system.get_sites()[0] - 1 : (system.get_sites()[0])/2 - 1 ;
systemDotEnd = systemDotStart - systemDotSize;
environmentDotStart = systemDotEnd - 1;
environmentDotEnd = environmentDotStart - environmentDotSize;
environmentStart = environmentDotEnd - 1;
environmentEnd = 0;
}
std::vector<int> environmentSites;
environmentSites.resize(abs(environmentEnd - environmentStart) + 1);
for (int i = 0; i < abs(environmentEnd - environmentStart) + 1; ++i) *(environmentSites.begin () + i) = min(environmentStart,environmentEnd) + i;
// now initialise environment
if (useSlater) { // for FCI
StateInfo system_stateinfo = system.get_stateInfo();
StateInfo sysdot_stateinfo = systemDot.get_stateInfo();
StateInfo tmp;
TensorProduct (system_stateinfo, sysdot_stateinfo, tmp, NO_PARTICLE_SPIN_NUMBER_CONSTRAINT);
// tmp has the system+dot quantum numbers
tmp.CollectQuanta ();
// exact environment
if (dmrginp.do_fci() || environmentSites.size() == nexact) {
if ((!dot_with_sys && onedot) || !onedot) { // environment has dot
environment.set_integralIndex() = integralIndex;
environment.default_op_components(!forward, leftState==rightState);
environment.setstoragetype(DISTRIBUTED_STORAGE);
environment.BuildTensorProductBlock(environmentSites); // exact block
SpinBlock::store (true, environmentSites, environment, leftState, rightState);
}
else { // environment has no dot, so newEnv = Env
newEnvironment.set_integralIndex() = integralIndex;
newEnvironment.default_op_components(!forward, leftState==rightState);
newEnvironment.setstoragetype(DISTRIBUTED_STORAGE);
newEnvironment.BuildTensorProductBlock(environmentSites);
SpinBlock::store (true, environmentSites, newEnvironment, leftState, rightState);
}
} else if (dmrginp.warmup() == LOCAL2 || dmrginp.warmup() == LOCAL3 || dmrginp.warmup() == LOCAL4) {
int nactiveSites, ncoreSites;
if (dmrginp.warmup() == LOCAL2) {
nactiveSites = 1;
} else if (dmrginp.warmup() == LOCAL3) {
nactiveSites = 2;
} else if (dmrginp.warmup() == LOCAL4) {
nactiveSites = 3;
}
if (dot_with_sys && onedot) {
nactiveSites += 1;
}
if (nactiveSites > environmentSites.size()) {
nactiveSites = environmentSites.size();
}
ncoreSites = environmentSites.size() - nactiveSites;
// figure out what sites are in the active and core sites
int environmentActiveEnd = forward ? environmentStart + nactiveSites - 1 : environmentStart - nactiveSites + 1;
int environmentCoreStart = forward ? environmentActiveEnd + 1 : environmentActiveEnd - 1;
std::vector<int> activeSites(nactiveSites), coreSites(ncoreSites);
for (int i = 0; i < nactiveSites; ++i) {
activeSites[i] = min(environmentStart,environmentActiveEnd) + i;
}
for (int i = 0; i < ncoreSites; ++i) {
coreSites[i] = min(environmentCoreStart,environmentEnd) + i;
}
SpinBlock environmentActive, environmentCore;
environmentActive.nonactive_orb() = system.nonactive_orb();
environmentCore.nonactive_orb() = system.nonactive_orb();
if (coreSites.size() > 0) {
environmentActive.set_integralIndex() = integralIndex;
environmentCore.set_integralIndex() = integralIndex;
environmentActive.default_op_components(!forward, leftState==rightState);
environmentActive.setstoragetype(DISTRIBUTED_STORAGE);
environmentCore.default_op_components(!forward, leftState==rightState);
environmentCore.setstoragetype(DISTRIBUTED_STORAGE);
environmentActive.BuildTensorProductBlock(activeSites);
environmentCore.BuildSingleSlaterBlock(coreSites);
dmrginp.datatransfer -> start();
environmentCore.addAdditionalCompOps();
environmentActive.addAdditionalCompOps();
dmrginp.datatransfer -> stop();
if ((!dot_with_sys && onedot) || !onedot) {
environment.set_integralIndex() = integralIndex;
environment.default_op_components(!forward, leftState == rightState);
environment.setstoragetype(DISTRIBUTED_STORAGE);
environment.BuildSumBlock(constraint, environmentCore, environmentActive,braquanta,ketquanta);
} else {
newEnvironment.set_integralIndex() = integralIndex;
newEnvironment.default_op_components(direct, environmentCore, environmentActive, haveNormops, haveCompops, leftState == rightState);
newEnvironment.setstoragetype(DISTRIBUTED_STORAGE);
newEnvironment.BuildSumBlock(constraint, environmentCore, environmentActive,braquanta,ketquanta);
if (dmrginp.outputlevel() > 0) {
pout << "\t\t\t NewEnvironment block " << endl << newEnvironment << endl;
newEnvironment.printOperatorSummary();
}
}
} else { // no core
if ((!dot_with_sys && onedot) || !onedot) {
environment.set_integralIndex() = integralIndex;
environment.default_op_components(!forward, leftState==rightState);
environment.setstoragetype(DISTRIBUTED_STORAGE);
environment.BuildTensorProductBlock(environmentSites); // exact block
} else {
newEnvironment.set_integralIndex() = integralIndex;
newEnvironment.default_op_components(!forward, leftState==rightState);
newEnvironment.setstoragetype(DISTRIBUTED_STORAGE);
newEnvironment.BuildTensorProductBlock(environmentSites);
}
}
} else { //used for warmup guess environemnt
std::vector<SpinQuantum> quantumNumbers;
std::vector<int> distribution;
std::map<SpinQuantum, int> quantaDist;
std::map<SpinQuantum, int>::iterator quantaIterator;
bool environmentComplementary = !forward;
StateInfo tmp2;
// tmp is the quantum numbers of newSystem (sys + sysdot)
if (onedot) tmp.quanta_distribution (quantumNumbers, distribution, true);
else {
StateInfo environmentdot_stateinfo = environmentDot.get_stateInfo();
TensorProduct (tmp, environmentdot_stateinfo, tmp2, constraint);
tmp2.CollectQuanta ();
tmp2.quanta_distribution (quantumNumbers, distribution, true);
}
for (int i = 0; i < distribution.size (); ++i) {
quantaIterator = quantaDist.find(quantumNumbers[i]);
if (quantaIterator != quantaDist.end()) distribution[i] += quantaIterator->second;
distribution [i] /= 4; distribution [i] += 1;
if (distribution [i] > dmrginp.nquanta()) distribution [i] = dmrginp.nquanta();
if(quantaIterator != quantaDist.end()) {
quantaIterator->second = distribution[i];
} else {
quantaDist[quantumNumbers[i]] = distribution[i];
}
}
if (dmrginp.outputlevel() > 0) pout << "\t\t\t Quantum numbers and states used for warm up :: " << endl << "\t\t\t ";
quantumNumbers.clear(); quantumNumbers.reserve(distribution.size());
distribution.clear();distribution.reserve(quantumNumbers.size());
std::map<SpinQuantum, int>::iterator qit = quantaDist.begin();
for (; qit != quantaDist.end(); qit++) {
quantumNumbers.push_back( qit->first); distribution.push_back(qit->second);
if (dmrginp.outputlevel() > 0) {
pout << quantumNumbers.back() << " = " << distribution.back() << ", ";
if (! (quantumNumbers.size() - 6) % 6) pout << endl << "\t\t\t ";
}
}
pout << endl;
if(dot_with_sys && onedot) {
newEnvironment.set_integralIndex() = integralIndex;
newEnvironment.BuildSlaterBlock (environmentSites, quantumNumbers, distribution, false, false);
} else {
environment.set_integralIndex() = integralIndex;
environment.BuildSlaterBlock (environmentSites, quantumNumbers, distribution, false, haveNormops);
}
}
} else {
if (dmrginp.outputlevel() > 0) pout << "\t\t\t Restoring block of size " << environmentSites.size () << " from previous iteration" << endl;
if(dot_with_sys && onedot) {
newEnvironment.set_integralIndex() = integralIndex;
SpinBlock::restore (!forward, environmentSites, newEnvironment, leftState, rightState);
} else {
environment.set_integralIndex() = integralIndex;
SpinBlock::restore (!forward, environmentSites, environment, leftState, rightState);
}
if (dmrginp.outputlevel() > 0)
mcheck("");
}
// now initialise newEnvironment
if (!dot_with_sys || !onedot) {
dmrginp.datatransfer -> start();
environment.addAdditionalCompOps();
dmrginp.datatransfer -> stop();
newEnvironment.set_integralIndex() = integralIndex;
newEnvironment.default_op_components(direct, environment, environmentDot, haveNormops, haveCompops, leftState==rightState);
newEnvironment.setstoragetype(DISTRIBUTED_STORAGE);
newEnvironment.BuildSumBlock (constraint, environment, environmentDot,braquanta,ketquanta);
if (dmrginp.outputlevel() > -1) {
pout << "\t\t\t Environment block " << endl << environment << endl;
environment.printOperatorSummary();
pout << "\t\t\t NewEnvironment block " << endl << newEnvironment << endl;
newEnvironment.printOperatorSummary();
}
} else if (dmrginp.outputlevel() > 0) {
pout << "\t\t\t Environment block " << endl << newEnvironment << endl;
newEnvironment.printOperatorSummary();
}
}
void SweepOnepdm::BlockAndDecimate (SweepParams &sweepParams, SpinBlock& system, SpinBlock& newSystem, const bool &useSlater, const bool& dot_with_sys)
{
//mcheck("at the start of block and decimate");
// figure out if we are going forward or backwards
dmrginp.guessgenT -> start();
bool forward = (system.get_sites() [0] == 0);
SpinBlock systemDot;
SpinBlock envDot;
int systemDotStart, systemDotEnd;
int systemDotSize = sweepParams.get_sys_add() - 1;
if (forward)
{
systemDotStart = *system.get_sites().rbegin () + 1;
systemDotEnd = systemDotStart + systemDotSize;
}
else
{
systemDotStart = system.get_sites() [0] - 1;
systemDotEnd = systemDotStart - systemDotSize;
}
vector<int> spindotsites(2);
spindotsites[0] = systemDotStart;
spindotsites[1] = systemDotEnd;
systemDot = SpinBlock(systemDotStart, systemDotEnd);
SpinBlock environment, environmentDot, newEnvironment;
int environmentDotStart, environmentDotEnd, environmentStart, environmentEnd;
const int nexact = forward ? sweepParams.get_forward_starting_size() : sweepParams.get_backward_starting_size();
system.addAdditionalCompOps();
InitBlocks::InitNewSystemBlock(system, systemDot, newSystem, sweepParams.get_sys_add(), dmrginp.direct(), DISTRIBUTED_STORAGE, true, true);
InitBlocks::InitNewEnvironmentBlock(environment, systemDot, newEnvironment, system, systemDot,
sweepParams.get_sys_add(), sweepParams.get_env_add(), forward, dmrginp.direct(),
sweepParams.get_onedot(), nexact, useSlater, true, true, true);
SpinBlock big;
newSystem.set_loopblock(true);
system.set_loopblock(false);
newEnvironment.set_loopblock(false);
InitBlocks::InitBigBlock(newSystem, newEnvironment, big);
const int nroots = dmrginp.nroots();
std::vector<Wavefunction> solutions(nroots);
for(int i=0;i<nroots;++i)
{
StateInfo newInfo;
solutions[i].LoadWavefunctionInfo (newInfo, newSystem.get_sites(), i);
}
#ifndef SERIAL
mpi::communicator world;
mpi::broadcast(world,solutions,0);
#endif
#ifdef SERIAL
const int numprocs = 1;
#endif
#ifndef SERIAL
const int numprocs = world.size();
#endif
compute_onepdm(solutions, system, systemDot, newSystem, newEnvironment, big, numprocs);
}
void SpinAdapted::mps_nevpt::type1::Startup(const SweepParams &sweepParams, const bool &forward, perturber& pb, int baseState) {
#ifndef SERIAL
mpi::communicator world;
#endif
assert(forward);
SpinBlock system;
system.nonactive_orb() =pb.orb();
bool restart=false, warmUp = false;
int forward_starting_size=1, backward_starting_size=0, restartSize =0;
InitBlocks::InitStartingBlock(system, forward, pb.wavenumber(), baseState, forward_starting_size, backward_starting_size, restartSize, restart, warmUp, 0,pb.braquanta, pb.ketquanta);
SpinBlock::store (forward, system.get_sites(), system, pb.wavenumber(), baseState); // if restart, just restoring an existing block --
for (int i=0; i<mps_nevpt::sweepIters; i++) {
SpinBlock newSystem;
SpinBlock dotSystem(i+1,i+1,pb.orb(),false);
system.addAdditionalCompOps();
//newSystem.default_op_components(true, system, dotSystem, true, true, false);
newSystem.perturb_op_components(false, system, dotSystem, pb);
newSystem.setstoragetype(DISTRIBUTED_STORAGE);
newSystem.BuildSumBlock(LessThanQ, system, dotSystem, pb.braquanta, pb.ketquanta);
newSystem.printOperatorSummary();
//SpinBlock Environment, big;
//SpinBlock::restore (!forward, newSystem.get_complementary_sites() , Environment, baseState, baseState);
//TODO
//SpinBlock::restore (!forward, newSystem.get_complementary_sites() , Environment,sweepParams.current_root(),sweepParams.current_root());
//big.BuildSumBlock(PARTICLE_SPIN_NUMBER_CONSTRAINT, newSystem, Environment, pb.braquanta, pb.ketquanta);
//StateInfo envStateInfo;
StateInfo ketStateInfo;
StateInfo braStateInfo;
StateInfo halfbraStateInfo;// It has the same left and right StateInfo as braStateInfo. However, its total quanta is pb.ketquanta.
// It is used to project solution into to braStateInfo.
std::vector<Wavefunction> solution; solution.resize(1);
std::vector<Wavefunction> outputState; outputState.resize(1);
std::vector<Wavefunction> solutionprojector; solutionprojector.resize(1);
solution[0].LoadWavefunctionInfo(ketStateInfo, newSystem.get_sites(), baseState);
#ifndef SERIAL
broadcast(world, ketStateInfo, 0);
broadcast(world, solution, 0);
#endif
outputState[0].AllowQuantaFor(newSystem.get_braStateInfo(), *(ketStateInfo.rightStateInfo), pb.braquanta);
outputState[0].set_onedot(solution[0].get_onedot());
outputState[0].Clear();
solutionprojector[0].AllowQuantaFor(newSystem.get_braStateInfo(), *(ketStateInfo.rightStateInfo), pb.ketquanta);
solutionprojector[0].set_onedot(solution[0].get_onedot());
solutionprojector[0].Clear();
//TensorProduct (newSystem.get_braStateInfo(), *(ketStateInfo.rightStateInfo), pb.braquanta[0], EqualQ, braStateInfo);
//TODO
//TensorProduct do not support const StateInfo&
TensorProduct (newSystem.set_braStateInfo(), *(ketStateInfo.rightStateInfo), pb.braquanta[0], EqualQ, braStateInfo);
TensorProduct (newSystem.set_braStateInfo(), *(ketStateInfo.rightStateInfo), pb.ketquanta[0], EqualQ, halfbraStateInfo);
//StateInfo::restore(forward, environmentsites, envStateInfo, baseState);
//DiagonalMatrix e;
//if(i == 0)
// GuessWave::guess_wavefunctions(solution, e, big, TRANSPOSE, true, true, 0.0, baseState);
//else
// GuessWave::guess_wavefunctions(solution, e, big, TRANSFORM, true, true, 0.0, baseState);
//SpinAdapted::operatorfunctions::Product(&newSystem, ccd, solution[0], &ketStateInfo, stateb.getw(), temp, SpinQuantum(0, SpinSpace(0), IrrepSpace(0)), true, 1.0);
boost::shared_ptr<SparseMatrix> O;
if (pb.type() == TwoPerturbType::Va)
O = newSystem.get_op_array(CDD_SUM).get_local_element(0)[0]->getworkingrepresentation(&newSystem);
if (pb.type() == TwoPerturbType::Vi)
O = newSystem.get_op_array(CCD_SUM).get_local_element(0)[0]->getworkingrepresentation(&newSystem);
boost::shared_ptr<SparseMatrix> overlap = newSystem.get_op_array(OVERLAP).get_local_element(0)[0]->getworkingrepresentation(&newSystem);
SpinAdapted::operatorfunctions::TensorMultiply(*O, &braStateInfo, &ketStateInfo , solution[0], outputState[0], pb.delta, true, 1.0);
SpinAdapted::operatorfunctions::TensorMultiply(*overlap, &halfbraStateInfo, &ketStateInfo , solution[0], solutionprojector[0], overlap->get_deltaQuantum(0), true, 1.0);
DensityMatrix bratracedMatrix(newSystem.get_braStateInfo());
bratracedMatrix.allocate(newSystem.get_braStateInfo());
double norm = DotProduct(outputState[0], outputState[0]);
if(norm > NUMERICAL_ZERO)
SpinAdapted::operatorfunctions::MultiplyProduct(outputState[0], Transpose(const_cast<Wavefunction&> (outputState[0])), bratracedMatrix, 0.5/norm);
SpinAdapted::operatorfunctions::MultiplyProduct(solutionprojector[0], Transpose(const_cast<Wavefunction&> (solutionprojector[0])), bratracedMatrix, 0.5);
std::vector<Matrix> brarotateMatrix, ketrotateMatrix;
LoadRotationMatrix (newSystem.get_sites(), ketrotateMatrix, baseState);
double error;
if (!mpigetrank())
error = makeRotateMatrix(bratracedMatrix, brarotateMatrix, sweepParams.get_keep_states(), sweepParams.get_keep_qstates());
#ifndef SERIAL
broadcast(world, ketrotateMatrix, 0);
broadcast(world, brarotateMatrix, 0);
#endif
SaveRotationMatrix (newSystem.get_sites(), brarotateMatrix, pb.wavenumber());
newSystem.transform_operators(brarotateMatrix,ketrotateMatrix);
SpinBlock::store (forward, newSystem.get_sites(), newSystem, pb.wavenumber(), baseState); // if restart, just restoring an existing block --
system=newSystem;
}
//TODO
//It seems that there is no need to do Last Step of Sweep.
}
void SweepGenblock::BlockAndDecimate (SweepParams &sweepParams, SpinBlock& system, SpinBlock& newSystem, const bool &useSlater, const bool& dot_with_sys, int stateA, int stateB)
{
if (dmrginp.outputlevel() > 0)
mcheck("at the start of block and decimate");
p1out << "\t\t\t Performing Blocking"<<endl;
dmrginp.guessgenT -> start();
// figure out if we are going forward or backwards
bool forward = (system.get_sites() [0] == 0);
SpinBlock systemDot;
int systemDotStart, systemDotEnd;
int systemDotSize = sweepParams.get_sys_add() - 1;
if (forward)
{
systemDotStart = dmrginp.spinAdapted() ? *system.get_sites().rbegin () + 1 : (*system.get_sites().rbegin ())/2 + 1 ;
systemDotEnd = systemDotStart + systemDotSize;
}
else
{
systemDotStart = dmrginp.spinAdapted() ? system.get_sites()[0] - 1 : (system.get_sites()[0])/2 - 1 ;
systemDotEnd = systemDotStart - systemDotSize;
}
vector<int> spindotsites(2);
spindotsites[0] = systemDotStart;
spindotsites[1] = systemDotEnd;
dmrginp.sysdotmake->start();
systemDot = SpinBlock(systemDotStart, systemDotEnd, system.get_integralIndex(), stateA==stateB);
dmrginp.sysdotmake->stop();
const int nexact = forward ? sweepParams.get_forward_starting_size() : sweepParams.get_backward_starting_size();
dmrginp.guessgenT -> stop();
dmrginp.datatransfer -> start();
system.addAdditionalCompOps();
dmrginp.datatransfer -> stop();
dmrginp.initnewsystem->start();
InitBlocks::InitNewSystemBlock(system, systemDot, newSystem, stateA, stateB, sweepParams.get_sys_add(), dmrginp.direct(), system.get_integralIndex(), DISTRIBUTED_STORAGE, dot_with_sys, true);
dmrginp.initnewsystem->stop();
pout << "\t\t\t System Block"<<newSystem;
newSystem.printOperatorSummary();
std::vector<Matrix> leftrotateMatrix, rightrotateMatrix;
LoadRotationMatrix (newSystem.get_sites(), leftrotateMatrix, stateA);
LoadRotationMatrix (newSystem.get_sites(), rightrotateMatrix, stateB);
#ifndef SERIAL
mpi::communicator world;
broadcast(world, leftrotateMatrix, 0);
broadcast(world, rightrotateMatrix, 0);
#endif
p1out <<"\t\t\t Performing Renormalization "<<endl<<endl;
dmrginp.operrotT->start();
if (stateB == stateA)
newSystem.transform_operators(leftrotateMatrix);
else
newSystem.transform_operators(leftrotateMatrix, rightrotateMatrix);
dmrginp.operrotT->stop();
if (dmrginp.outputlevel() > 0)
//mcheck("after rotation and transformation of block");
p2out <<newSystem<<endl;
newSystem.printOperatorSummary();
//mcheck("After renorm transform");
p2out << *dmrginp.guessgenT<<" "<<*dmrginp.multiplierT<<" "<<*dmrginp.operrotT<< " "<<globaltimer.totalwalltime()<<" timer "<<endl;
p2out << *dmrginp.makeopsT<<" "<<*dmrginp.initnewsystem<<" "<<*dmrginp.sysdotmake<<" "<<*dmrginp.buildcsfops<<" makeops "<<endl;
p2out << *dmrginp.datatransfer<<" datatransfer "<<endl;
p2out <<"oneindexopmult twoindexopmult Hc couplingcoeff"<<endl;
p2out << *dmrginp.oneelecT<<" "<<*dmrginp.twoelecT<<" "<<*dmrginp.hmultiply<<" "<<*dmrginp.couplingcoeff<<" hmult"<<endl;
p2out << *dmrginp.buildsumblock<<" "<<*dmrginp.buildblockops<<" build block"<<endl;
p2out << *dmrginp.blockintegrals<<" "<<*dmrginp.blocksites<<" "<<*dmrginp.statetensorproduct<<" "<<*dmrginp.statecollectquanta<<" "<<*dmrginp.buildsumblock<<" "<<*dmrginp.builditeratorsT<<" "<<*dmrginp.diskio<<" build sum block"<<endl;
p2out << "addnoise S_0_opxop S_1_opxop S_2_opxop"<<endl;
p3out << *dmrginp.addnoise<<" "<<*dmrginp.s0time<<" "<<*dmrginp.s1time<<" "<<*dmrginp.s2time<<endl;
}
void SweepGenblock::BlockAndDecimate (SweepParams &sweepParams, SpinBlock& system, SpinBlock& newSystem, const bool &useSlater, const bool& dot_with_sys, int stateA, int stateB)
{
if (dmrginp.outputlevel() > 0)
mcheck("at the start of block and decimate");
pout << "\t\t\t Performing Blocking"<<endl;
dmrginp.guessgenT -> start();
// figure out if we are going forward or backwards
bool forward = (system.get_sites() [0] == 0);
SpinBlock systemDot;
int systemDotStart, systemDotEnd;
int systemDotSize = sweepParams.get_sys_add() - 1;
if (forward)
{
systemDotStart = dmrginp.spinAdapted() ? *system.get_sites().rbegin () + 1 : (*system.get_sites().rbegin ())/2 + 1 ;
systemDotEnd = systemDotStart + systemDotSize;
}
else
{
systemDotStart = dmrginp.spinAdapted() ? system.get_sites()[0] - 1 : (system.get_sites()[0])/2 - 1 ;
systemDotEnd = systemDotStart - systemDotSize;
}
vector<int> spindotsites(2);
spindotsites[0] = systemDotStart;
spindotsites[1] = systemDotEnd;
systemDot = SpinBlock(systemDotStart, systemDotEnd, stateA==stateB);
const int nexact = forward ? sweepParams.get_forward_starting_size() : sweepParams.get_backward_starting_size();
system.addAdditionalCompOps();
InitBlocks::InitNewSystemBlock(system, systemDot, newSystem, stateA, stateB, sweepParams.get_sys_add(), dmrginp.direct(), DISTRIBUTED_STORAGE, dot_with_sys, true);
pout << "\t\t\t System Block"<<newSystem;
if (dmrginp.outputlevel() > 0)
newSystem.printOperatorSummary();
std::vector<Matrix> leftrotateMatrix, rightrotateMatrix;
LoadRotationMatrix (newSystem.get_sites(), leftrotateMatrix, stateA);
LoadRotationMatrix (newSystem.get_sites(), rightrotateMatrix, stateB);
#ifndef SERIAL
mpi::communicator world;
broadcast(world, leftrotateMatrix, 0);
broadcast(world, rightrotateMatrix, 0);
#endif
pout <<"\t\t\t Performing Renormalization "<<endl<<endl;
if (stateB == stateA)
newSystem.transform_operators(leftrotateMatrix);
else
newSystem.transform_operators(leftrotateMatrix, rightrotateMatrix);
if (dmrginp.outputlevel() > 0)
//mcheck("after rotation and transformation of block");
if (dmrginp.outputlevel() > 0)
pout <<newSystem<<endl;
if (dmrginp.outputlevel() > 0)
newSystem.printOperatorSummary();
//mcheck("After renorm transform");
}
void SweepTwopdm::BlockAndDecimate (SweepParams &sweepParams, SpinBlock& system, SpinBlock& newSystem, const bool &useSlater, const bool& dot_with_sys, int state)
{
//mcheck("at the start of block and decimate");
// figure out if we are going forward or backwards
dmrginp.guessgenT -> start();
bool forward = (system.get_sites() [0] == 0);
SpinBlock systemDot;
SpinBlock envDot;
int systemDotStart, systemDotEnd;
int systemDotSize = sweepParams.get_sys_add() - 1;
if (forward)
{
systemDotStart = *system.get_sites().rbegin () + 1;
systemDotEnd = systemDotStart + systemDotSize;
}
else
{
systemDotStart = system.get_sites() [0] - 1;
systemDotEnd = systemDotStart - systemDotSize;
}
vector<int> spindotsites(2);
spindotsites[0] = systemDotStart;
spindotsites[1] = systemDotEnd;
//if (useSlater) {
systemDot = SpinBlock(systemDotStart, systemDotEnd, true);
//SpinBlock::store(true, systemDot.get_sites(), systemDot);
//}
//else
//SpinBlock::restore(true, spindotsites, systemDot);
SpinBlock environment, environmentDot, newEnvironment;
int environmentDotStart, environmentDotEnd, environmentStart, environmentEnd;
const int nexact = forward ? sweepParams.get_forward_starting_size() : sweepParams.get_backward_starting_size();
system.addAdditionalCompOps();
InitBlocks::InitNewSystemBlock(system, systemDot, newSystem, sweepParams.current_root(), sweepParams.current_root(), sweepParams.get_sys_add(), dmrginp.direct(), DISTRIBUTED_STORAGE, true, true);
InitBlocks::InitNewEnvironmentBlock(environment, systemDot, newEnvironment, system, systemDot, sweepParams.current_root(), sweepParams.current_root(),
sweepParams.get_sys_add(), sweepParams.get_env_add(), forward, dmrginp.direct(),
sweepParams.get_onedot(), nexact, useSlater, true, true, true);
SpinBlock big;
newSystem.set_loopblock(true);
system.set_loopblock(false);
newEnvironment.set_loopblock(false);
InitBlocks::InitBigBlock(newSystem, newEnvironment, big);
const int nroots = dmrginp.nroots();
std::vector<Wavefunction> solution(1);
DiagonalMatrix e;
GuessWave::guess_wavefunctions(solution[0], e, big, sweepParams.get_guesstype(), true, state, true, 0.0);
#ifndef SERIAL
mpi::communicator world;
mpi::broadcast(world, solution, 0);
#endif
std::vector<Matrix> rotateMatrix;
DensityMatrix tracedMatrix(newSystem.get_stateInfo());
tracedMatrix.allocate(newSystem.get_stateInfo());
tracedMatrix.makedensitymatrix(solution, big, std::vector<double>(1,1.0), 0.0, 0.0, false);
rotateMatrix.clear();
if (!mpigetrank())
double error = makeRotateMatrix(tracedMatrix, rotateMatrix, sweepParams.get_keep_states(), sweepParams.get_keep_qstates());
#ifndef SERIAL
mpi::broadcast(world,rotateMatrix,0);
#endif
#ifdef SERIAL
const int numprocs = 1;
#endif
#ifndef SERIAL
const int numprocs = world.size();
#endif
if (sweepParams.get_block_iter() == 0)
compute_twopdm_initial(solution, system, systemDot, newSystem, newEnvironment, big, numprocs, state);
compute_twopdm_sweep(solution, system, systemDot, newSystem, newEnvironment, big, numprocs, state);
if (sweepParams.get_block_iter() == sweepParams.get_n_iters() - 1)
compute_twopdm_final(solution, system, systemDot, newSystem, newEnvironment, big, numprocs, state);
SaveRotationMatrix (newSystem.get_sites(), rotateMatrix, state);
//for(int i=0;i<dmrginp.nroots();++i)
solution[0].SaveWavefunctionInfo (big.get_stateInfo(), big.get_leftBlock()->get_sites(), state);
newSystem.transform_operators(rotateMatrix);
}
void SweepGenblock::BlockAndDecimate (SweepParams &sweepParams, SpinBlock& system, SpinBlock& newSystem, const bool &useSlater, const bool& dot_with_sys, int state)
{
if (dmrginp.outputlevel() > 0)
mcheck("at the start of block and decimate");
// figure out if we are going forward or backwards
pout << "\t\t\t Performing Blocking"<<endl;
dmrginp.guessgenT -> start();
bool forward = (system.get_sites() [0] == 0);
SpinBlock systemDot;
int systemDotStart, systemDotEnd;
int systemDotSize = sweepParams.get_sys_add() - 1;
if (forward)
{
systemDotStart = *system.get_sites().rbegin () + 1;
systemDotEnd = systemDotStart + systemDotSize;
}
else
{
systemDotStart = system.get_sites() [0] - 1;
systemDotEnd = systemDotStart - systemDotSize;
}
vector<int> spindotsites(2);
spindotsites[0] = systemDotStart;
spindotsites[1] = systemDotEnd;
systemDot = SpinBlock(systemDotStart, systemDotEnd);
const int nexact = forward ? sweepParams.get_forward_starting_size() : sweepParams.get_backward_starting_size();
system.addAdditionalCompOps();
InitBlocks::InitNewSystemBlock(system, systemDot, newSystem, sweepParams.get_sys_add(), dmrginp.direct(), DISTRIBUTED_STORAGE, dot_with_sys, true);
pout << "\t\t\t System Block"<<newSystem;
if (dmrginp.outputlevel() > 0)
newSystem.printOperatorSummary();
std::vector<Matrix> rotateMatrix;
if (!dmrginp.get_fullrestart()) {
//this should be done when we actually have wavefunctions stored, otherwise not!!
SpinBlock environment, environmentDot, newEnvironment;
int environmentDotStart, environmentDotEnd, environmentStart, environmentEnd;
InitBlocks::InitNewEnvironmentBlock(environment, systemDot, newEnvironment, system, systemDot,
sweepParams.get_sys_add(), sweepParams.get_env_add(), forward, dmrginp.direct(),
sweepParams.get_onedot(), nexact, useSlater, true, true, true);
SpinBlock big;
InitBlocks::InitBigBlock(newSystem, newEnvironment, big);
DiagonalMatrix e;
std::vector<Wavefunction> solution(1);
GuessWave::guess_wavefunctions(solution[0], e, big, sweepParams.get_guesstype(), true, state, true, 0.0);
solution[0].SaveWavefunctionInfo (big.get_stateInfo(), big.get_leftBlock()->get_sites(), state);
DensityMatrix tracedMatrix;
tracedMatrix.allocate(newSystem.get_stateInfo());
tracedMatrix.makedensitymatrix(solution, big, std::vector<double>(1, 1.0), 0.0, 0.0, false);
rotateMatrix.clear();
if (!mpigetrank())
double error = newSystem.makeRotateMatrix(tracedMatrix, rotateMatrix, sweepParams.get_keep_states(), sweepParams.get_keep_qstates());
}
else
LoadRotationMatrix (newSystem.get_sites(), rotateMatrix, state);
#ifndef SERIAL
mpi::communicator world;
broadcast(world, rotateMatrix, 0);
#endif
if (!dmrginp.get_fullrestart())
SaveRotationMatrix (newSystem.get_sites(), rotateMatrix, state);
pout <<"\t\t\t Performing Renormalization "<<endl<<endl;
newSystem.transform_operators(rotateMatrix);
if (dmrginp.outputlevel() > 0)
mcheck("after rotation and transformation of block");
if (dmrginp.outputlevel() > 0)
pout <<newSystem<<endl;
if (dmrginp.outputlevel() > 0)
newSystem.printOperatorSummary();
//mcheck("After renorm transform");
}
