Ejemplo n.º 1
0
 def test_class(self):
     """Tests container behavior."""
     model = kproxy_supercell.TDProxy(self.model_krks, "dft", [1, 1, 1],
                                      density_fitting_ks)
     # Shifted k-point grid is not TRS: an exception should be raised
     with self.assertRaises(RuntimeError):
         model.kernel()
Ejemplo n.º 2
0
    def setUpClass(cls):
        cls.cell = cell = Cell()
        # Lift some degeneracies
        cell.atom = '''
        C 0.000000000000   0.000000000000   0.000000000000
        C 1.67   1.68   1.69
        '''
        cell.basis = {'C': [[0, (0.8, 1.0)],
                            [1, (1.0, 1.0)]]}
        # cell.basis = 'gth-dzvp'
        cell.pseudo = 'gth-pade'
        cell.a = '''
        0.000000000, 3.370137329, 3.370137329
        3.370137329, 0.000000000, 3.370137329
        3.370137329, 3.370137329, 0.000000000'''
        cell.unit = 'B'
        cell.verbose = 5
        cell.build()

        k = cell.make_kpts([cls.k, 1, 1])

        cls.model_krks = model_krks = KRKS(cell, k)
        model_krks.kernel()

        cls.td_model_rks_supercell = kproxy_supercell.TDProxy(model_krks, "dft", [cls.k, 1, 1], KRKS)
        cls.td_model_rks_supercell.kernel()
        cls.ref_m_supercell = cls.td_model_rks_supercell.eri.tdhf_full_form()
Ejemplo n.º 3
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    def setUpClass(cls):
        cls.cell = cell = Cell()
        # Lift some degeneracies
        cell.atom = '''
        C 0.000000000000   0.000000000000   0.000000000000
        C 1.67   1.68   1.69
        '''
        cell.basis = {'C': [[0, (0.8, 1.0)],
                            [1, (1.0, 1.0)]]}
        # cell.basis = 'gth-dzvp'
        cell.pseudo = 'gth-pade'
        cell.a = '''
        0.000000000, 3.370137329, 3.370137329
        3.370137329, 0.000000000, 3.370137329
        3.370137329, 3.370137329, 0.000000000'''
        cell.unit = 'B'
        cell.verbose = 5
        cell.build()

        k = cell.make_kpts([cls.k, 1, 1])

        # The Gamma-point reference
        cls.model_rks = model_rks = KRKS(super_cell(cell, [cls.k, 1, 1]))
        model_rks.conv_tol = 1e-14
        model_rks.kernel()

        # K-points
        cls.model_krks = model_krks = KRKS(cell, k)
        model_krks.conv_tol = 1e-14
        model_krks.kernel()

        adjust_mf_phase(model_rks, model_krks)

        ke = numpy.concatenate(model_krks.mo_energy)
        ke.sort()

        # Make sure mo energies are the same
        testing.assert_allclose(model_rks.mo_energy[0], ke)

        # TD
        cls.td_model_rks = td_model_rks = tdp.TDProxy(model_rks, "dft")
        td_model_rks.kernel()

        cls.td_model_krks = td_model_krks = ktdp.TDProxy(model_krks, "dft", [cls.k, 1, 1], KRKS)
        td_model_krks.kernel()

        # GW
        cls.gw = gw.GW(td_model_rks, td.TDRHF(model_rks).ao2mo())
        cls.kgw = kgw.GW(td_model_krks, ktd.TDRHF(model_krks).ao2mo())

        cls.order_k, cls.order_p, cls.order = ov_order_supercell(cls.kgw.imds)

        orbs = []
        for k in range(cls.k):
            for o in numpy.arange(2, 6):
                orbs.append(numpy.where(numpy.logical_and(cls.order_k == k, cls.order_p == o))[0][0])
        cls.gw.orbs = numpy.array(orbs)
        cls.kgw.orbs = numpy.arange(2, 6)
Ejemplo n.º 4
0
 def test_class(self):
     """Tests container behavior."""
     model = kproxy_supercell.TDProxy(self.model_krks, "dft", [1, 1, 1],
                                      KRKS)
     model.nroots = self.td_model_krks.nroots
     assert not model.fast
     model.kernel()
     testing.assert_allclose(model.e, self.td_model_krks.e, atol=1e-5)
     assert_vectors_close(model.xy,
                          numpy.array(self.td_model_krks.xy),
                          atol=1e-12)
Ejemplo n.º 5
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 def test_class(self):
     """Tests container behavior."""
     model = kproxy_supercell.TDProxy(self.model_krhf, "hf", [1, 1, 1],
                                      density_fitting_hf)
     model.nroots = self.td_model_krhf.nroots
     assert not model.fast
     model.kernel()
     testing.assert_allclose(model.e, self.td_model_krhf.e, atol=1e-5)
     assert_vectors_close(model.xy,
                          numpy.array(self.td_model_krhf.xy),
                          atol=1e-12)
Ejemplo n.º 6
0
 def test_class(self):
     """Tests container behavior."""
     model = kproxy_supercell.TDProxy(self.model_krks, "dft",
                                      [self.k, 1, 1], KRKS)
     model.nroots = self.td_model_rks.nroots
     assert not model.fast
     model.kernel()
     testing.assert_allclose(model.e, self.td_model_rks.e, atol=1e-5)
     if self.k == 2:
         vecs = model.xy.reshape(len(model.xy), -1)[:, self.ov_order]
         # A loose tolerance here because of a low plane-wave cutoff
         assert_vectors_close(vecs,
                              numpy.array(self.td_model_rks.xy).squeeze(),
                              atol=1e-3)
     # Test real
     testing.assert_allclose(model.e.imag, 0, atol=1e-8)
Ejemplo n.º 7
0
    def test_class(self):
        """Tests container behavior."""
        model = kproxy_supercell.TDProxy(self.model_krhf, "hf", [self.k, 1, 1],
                                         density_fitting_hf)
        model.nroots = self.td_model_krhf.nroots
        assert not model.fast
        model.kernel()
        testing.assert_allclose(model.e, self.td_model_krhf.e, atol=1e-5)
        # Test real
        testing.assert_allclose(model.e.imag, 0, atol=1e-8)

        nocc = nvirt = 4
        testing.assert_equal(model.xy.shape,
                             (len(model.e), 2, self.k, self.k, nocc, nvirt))

        # Test only non-degenerate roots
        d = abs(model.e[1:] - model.e[:-1]) < 1e-8
        d = numpy.logical_or(numpy.concatenate(([False], d)),
                             numpy.concatenate((d, [False])))
        d = numpy.logical_not(d)
        assert_vectors_close(self.td_model_krhf.xy[d], model.xy[d], atol=1e-5)
Ejemplo n.º 8
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    def setUpClass(cls):
        cls.cell = cell = Cell()
        # Lift some degeneracies
        cell.atom = '''
        C 0.000000000000   0.000000000000   0.000000000000
        C 1.67   1.68   1.69
        '''
        cell.basis = {'C': [[0, (0.8, 1.0)], [1, (1.0, 1.0)]]}
        # cell.basis = 'gth-dzvp'
        cell.pseudo = 'gth-pade'
        cell.a = '''
        0.000000000, 3.370137329, 3.370137329
        3.370137329, 0.000000000, 3.370137329
        3.370137329, 3.370137329, 0.000000000'''
        cell.unit = 'B'
        cell.verbose = 5
        cell.build()

        k = cell.make_kpts([cls.k, 1, 1])

        # K-points
        cls.model_krks = model_krks = KRKS(cell, k)
        model_krks.conv_tol = 1e-14
        model_krks.kernel()

        # TD
        cls.td_model_srks = td_model_srks = stdp.TDProxy(
            model_krks, "dft", [cls.k, 1, 1], KRKS)
        td_model_srks.kernel()

        cls.td_model_krks = td_model_krks = ktdp.TDProxy(
            model_krks, "dft", [cls.k, 1, 1], KRKS)
        td_model_krks.kernel()

        # GW
        cls.gw = sgw.GW(td_model_srks, std.TDRHF(model_krks).ao2mo())
        cls.kgw = kgw.GW(td_model_krks, ktd.TDRHF(model_krks).ao2mo())