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Output messages
The solver diagonalize the local Hamiltonian before starting Monte Carlo sampling. The following is typical output messages on the local Hilbert space (t2g three-orbital model).
The dimension of the Hilbert space is 64 (=4^3). The solver automatically found 44 sectors. Information on each sector is shown below: dimension, min eigen energy, max eigen energy.
dim of Hilbert space 64
# of sectors 44
Sector 0 : dim = 1, min energy = 116.515, max energy = 116.515
Sector 1 : dim = 1, min energy = 78.4277, max energy = 78.4277
Sector 2 : dim = 1, min energy = 78.4277, max energy = 78.4277
Sector 3 : dim = 1, min energy = 46.7796, max energy = 46.7796
Sector 4 : dim = 1, min energy = 78.4277, max energy = 78.4277
...
Sector 42 : dim = 1, min energy = 0.751277, max energy = 0.751277
Sector 43 : dim = 1, min energy = 0, max energy = 0
The max and min eigen energies in the whole Hilbert space is shown like this.
Max eigen energy = 116.515
Min eigen energy = 0
Then, high-energy states above the cut-off energy are removed from the local Hilbert space. (In this case, no truncation is performed) Then, it follows information of the sectors after the truncation.
Throwing away high energy states...
Sector 0 : dim = 1, min energy = 116.515, max energy = 116.515
Sector 1 : dim = 1, min energy = 78.4277, max energy = 78.4277
Sector 2 : dim = 1, min energy = 78.4277, max energy = 78.4277
Sector 3 : dim = 1, min energy = 46.7796, max energy = 46.7796
Sector 4 : dim = 1, min energy = 78.4277, max energy = 78.4277
Sector 5 : dim = 1, min energy = 46.7796, max energy = 46.7796
After the Monte Carlo sampling is done, some output messages on Monte Carlo process are shown.
"Perturbation orders just before and after measurement steps" must be more or less the same value. If not (as in this case), the thermalization time might be too short.
If average sign drops below 0.1, the sampling will suffer from a bad sign problem.
==== Thermalization analysis ====
Perturbation orders just before and after measurement steps are 2.925 and 33.0125.
==== Number of Monte Carlo steps spent in configuration spaces ====
Z function : 1.72078
G1 : 8.27922
==== Acceptance updates of operators hybridized with bath ====
1-pair_insertion_remover : 0.0384287
2-pair_insertion_remover : 0.00411946
Single_operator_shift_updater : 0.0377525
Operator_pair_flavor_updater : 0.169294
==== Acceptance rates of worm updates ====
G1_ins_rem : 0.0107369
G1_mover : 0.0491783
G1_flavor_changer : 0.0902604
G1_ins_rem_hyb : 0.0865853
Average sign: 1