// The method that runs the qmc
void ctint_solver::solve(double U, double delta, int n_cycles, int length_cycle,
int n_warmup_cycles, std::string random_name,
int max_time) {
mpi::communicator world;
triqs::clef::placeholder<0> spin_;
triqs::clef::placeholder<1> om_;
for (auto spin : {up, down}) { // Apply shift to g0_iw and Fourier transform
g0tilde_iw[spin](om_) << 1.0 / (1.0 / g0_iw[spin](om_) - U / 2);
g0tilde_tau()[spin] = triqs::gfs::inverse_fourier(g0tilde_iw[spin]);
}
// Rank-specific variables
int verbosity = (world.rank() == 0 ? 3 : 0);
int random_seed = 34788 + 928374 * world.rank();
// Construct a Monte Carlo loop
triqs::mc_tools::mc_generic<double> CTQMC(n_cycles, length_cycle,
n_warmup_cycles, random_name,
random_seed, verbosity);
// Prepare the configuration
auto config = configuration{g0tilde_tau, beta, delta};
// Register moves and measurements
CTQMC.add_move(move_insert{&config, CTQMC.rng(), beta, U}, "insertion");
CTQMC.add_move(move_remove{&config, CTQMC.rng(), beta, U}, "removal");
CTQMC.add_measure(measure_M{&config, M_iw, beta}, "M measurement");
// Run and collect results
CTQMC.start(1.0, triqs::utility::clock_callback(max_time));
CTQMC.collect_results(world);
// Compute the Green function from Mw
g_iw[spin_](om_) << g0tilde_iw[spin_](om_) + g0tilde_iw[spin_](om_) *
M_iw[spin_](om_) *
g0tilde_iw[spin_](om_);
}
// The method that runs the qmc
void ctint_solver::solve(double U, double delta, int n_cycles, int length_cycle, int n_warmup_cycles, std::string random_name, int max_time) {
mpi::communicator world;
triqs::clef::placeholder<0> spin_;
triqs::clef::placeholder<1> om_;
for (auto spin : {up, down}) { // Apply shift to g0_iw and Fourier transform
g0tilde_iw[spin](om_) << 1.0 / (1.0 / g0_iw[spin](om_) - U / 2);
array<dcomplex, 3> mom{{{0}}, {{1}}}; // Fix the moments: 0 + 1/omega
g0tilde_tau()[spin] = triqs::gfs::fourier(g0tilde_iw[spin], make_const_view(mom));
}
// Rank-specific variables
int verbosity = (world.rank() == 0 ? 3 : 0);
int random_seed = 34788 + 928374 * world.rank();
// Construct a Monte Carlo loop
triqs::mc_tools::mc_generic<dcomplex> CTQMC(random_name, random_seed, 1.0, verbosity);
// Prepare the configuration
auto config = configuration{g0tilde_tau, beta, delta};
// Register moves and measurements
CTQMC.add_move(move_insert{&config, CTQMC.get_rng(), beta, U}, "insertion");
CTQMC.add_move(move_remove{&config, CTQMC.get_rng(), beta, U}, "removal");
CTQMC.add_measure(measure_M{&config, M_iw, beta}, "M measurement");
// Run and collect results
CTQMC.warmup_and_accumulate(n_warmup_cycles, n_cycles, length_cycle, triqs::utility::clock_callback(max_time));
CTQMC.collect_results(world);
// Compute the Green function from Mw
g_iw[spin_](om_) << g0tilde_iw[spin_](om_) + g0tilde_iw[spin_](om_) * M_iw[spin_](om_) * g0tilde_iw[spin_](om_);
// Set the tail of g_iw to 1/w
triqs::arrays::array<dcomplex, 3> mom{{{0}}, {{1}}}; // 0 + 1/omega
for (auto &g : g_iw) replace_by_tail_in_fit_window(g(), make_const_view(mom));
}