55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
import copy
|
|
import os
|
|
|
|
import config
|
|
import numpy as np
|
|
import pytest
|
|
import qibo
|
|
from qibo.models import QFT
|
|
|
|
|
|
def create_init_state(nqubits):
|
|
init_state = np.random.random(2**nqubits) + 1j * np.random.random(2**nqubits)
|
|
init_state = init_state / np.sqrt((np.abs(init_state) ** 2).sum())
|
|
return init_state
|
|
|
|
|
|
def qibo_qft(nqubits, init_state, swaps):
|
|
circ_qibo = QFT(nqubits, swaps)
|
|
state_vec = circ_qibo(init_state).state(numpy=True)
|
|
return circ_qibo, state_vec
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"nqubits, tolerance, is_mps",
|
|
[(1, 1e-6, True), (2, 1e-6, False), (5, 1e-3, True), (10, 1e-3, False)],
|
|
)
|
|
def test_eval(nqubits: int, tolerance: float, is_mps: bool):
|
|
# hack quimb to use the correct number of processes
|
|
# TODO: remove completely, or at least delegate to the backend
|
|
# implementation
|
|
os.environ["QUIMB_NUM_PROCS"] = str(os.cpu_count())
|
|
import qibotn.quimb
|
|
|
|
init_state = create_init_state(nqubits=nqubits)
|
|
init_state_tn = copy.deepcopy(init_state)
|
|
|
|
# Test qibo
|
|
qibo.set_backend(backend=config.qibo.backend, platform=config.qibo.platform)
|
|
# qibo_time, (qibo_circ, result_sv) = time(
|
|
# lambda: qibo_qft(nqubits, init_state, swaps=True)
|
|
# )
|
|
qibo_circ, result_sv = qibo_qft(nqubits, init_state, swaps=True)
|
|
|
|
# Convert to qasm for other backends
|
|
qasm_circ = qibo_circ.to_qasm()
|
|
|
|
# Test quimb
|
|
result_tn = qibotn.quimb.eval(
|
|
qasm_circ, init_state_tn, is_mps, backend=config.quimb.backend
|
|
)
|
|
|
|
assert np.allclose(
|
|
result_sv, result_tn, atol=tolerance
|
|
), "Resulting dense vectors do not match"
|