コード例 #1
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def test_constraints1():
    '''
    simplest senario
    '''
    pm = ParameterHelper(species=['O', 'C', 'H'],
                         kernels={'twobody': [['*', '*'], ['O', 'O']],
                                  'threebody': [['*', '*', '*'], ['O', 'O', 'O']]},
                         parameters={'twobody0': [1, 0.5], 'twobody1': [2, 0.2],
                                     'threebody0': [1, 0.5], 'threebody1': [2, 0.2],
                                     'cutoff_twobody': 2, 'cutoff_threebody': 1},
                         constraints={'twobody0': [True, False],
                                      'threebody0': [False, True],
                                      'noise': False},
                         verbose="DEBUG")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)
    assert hm['train_noise'] is False
    hyps = hm['hyps']
    assert len(hyps) == 6
    assert hyps[0] == 1
    assert hyps[1] == 2
    assert hyps[2] == 0.2
    assert hyps[3] == 2
    assert hyps[4] == 0.5
    assert hyps[5] == 0.2
コード例 #2
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def test_check_one_conflict():
    """
    simplest senario
    """
    with raises(RuntimeError):
        pm = ParameterHelper(
            kernels=["twobody", "threebody"],
            parameters={"cutoff_twobody": 2, "cutoff_threebody": 1, "noise": 0.05},
            ones=True,
            random=True,
            verbose="DEBUG",
        )

    with raises(RuntimeError):
        pm = ParameterHelper(
            kernels=["twobody", "threebody"],
            parameters={
                "sigma": 0.5,
                "lengthscale": 1.0,
                "cutoff_twobody": 2,
                "cutoff_threebody": 1,
                "noise": 0.05,
            },
            ones=True,
            random=False,
            verbose="DEBUG",
        )
コード例 #3
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ファイル: test_ase_otf.py プロジェクト: aaronchen0316/flare
def flare_calc():
    flare_calc_dict = {}
    for md_engine in md_list:

        # ---------- create gaussian process model -------------------

        # set up GP hyperparameters
        kernels = ["twobody", "threebody"]  # use 2+3 body kernel
        parameters = {"cutoff_twobody": 5.0, "cutoff_threebody": 3.5}
        pm = ParameterHelper(kernels=kernels,
                             random=True,
                             parameters=parameters)

        hm = pm.as_dict()
        hyps = hm["hyps"]
        cut = hm["cutoffs"]
        print("hyps", hyps)

        gp_model = GaussianProcess(
            kernels=kernels,
            component="sc",  # single-component. For multi-comp, use 'mc'
            hyps=hyps,
            cutoffs=cut,
            hyp_labels=["sig2", "ls2", "sig3", "ls3", "noise"],
            opt_algorithm="L-BFGS-B",
            n_cpus=1,
        )

        # ----------- create mapped gaussian process ------------------
        grid_params = {
            "twobody": {
                "grid_num": [64]
            },
            "threebody": {
                "grid_num": [16, 16, 16]
            },
        }

        mgp_model = MappedGaussianProcess(grid_params=grid_params,
                                          unique_species=[1, 2],
                                          n_cpus=1,
                                          var_map="pca")

        # ------------ create ASE's flare calculator -----------------------
        flare_calculator = FLARE_Calculator(gp_model,
                                            mgp_model=mgp_model,
                                            par=True,
                                            use_mapping=True)

        flare_calc_dict[md_engine] = flare_calculator
        print(md_engine)
    yield flare_calc_dict
    del flare_calc_dict
コード例 #4
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def test_initialization3():
    """check group definition"""
    pm = ParameterHelper(species=['O', 'C', 'H'],
                         kernels={'twobody': [['*', '*'], ['O', 'O']],
                                  'threebody': [['*', '*', '*'], ['O', 'O', 'O']]},
                         parameters={'twobody0': [1, 0.5], 'twobody1': [2, 0.2],
                                     'threebody0': [1, 0.5], 'threebody1': [2, 0.2],
                                     'cutoff_twobody': 2, 'cutoff_threebody': 1},
                         verbose="DEBUG")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)
コード例 #5
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def test_opt():
    pm = ParameterHelper(species=['O', 'C', 'H'],
                         kernels={'twobody': [['*', '*'], ['O', 'O']],
                                  'threebody': [['*', '*', '*'], ['O', 'O', 'O']]},
                         parameters={'twobody0': [1, 0.5, 1], 'twobody1': [2, 0.2, 2],
                                     'threebody0': [1, 0.5], 'threebody1': [2, 0.2],
                                     'cutoff_twobody': 2, 'cutoff_threebody': 1},
                         constraints={'twobody0': [False, True]},
                         verbose="DEBUG")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)
コード例 #6
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def flare_calc():
    flare_calc_dict = {}
    for md_engine in md_list:

        # ---------- create gaussian process model -------------------

        # set up GP hyperparameters
        kernels = ['twobody', 'threebody']  # use 2+3 body kernel
        parameters = {'cutoff_twobody': 5.0, 'cutoff_threebody': 3.5}
        pm = ParameterHelper(kernels=kernels,
                             random=True,
                             parameters=parameters)

        hm = pm.as_dict()
        hyps = hm['hyps']
        cut = hm['cutoffs']
        print('hyps', hyps)

        gp_model = GaussianProcess(
            kernels=kernels,
            component='sc',  # single-component. For multi-comp, use 'mc'
            hyps=hyps,
            cutoffs=cut,
            hyp_labels=['sig2', 'ls2', 'sig3', 'ls3', 'noise'],
            opt_algorithm='L-BFGS-B',
            n_cpus=1)

        # ----------- create mapped gaussian process ------------------
        grid_params = {
            'twobody': {
                'grid_num': [64]
            },
            'threebody': {
                'grid_num': [16, 16, 16]
            }
        }

        mgp_model = MappedGaussianProcess(grid_params=grid_params,
                                          unique_species=[1, 2],
                                          n_cpus=1,
                                          var_map='pca')

        # ------------ create ASE's flare calculator -----------------------
        flare_calculator = FLARE_Calculator(gp_model,
                                            mgp_model=mgp_model,
                                            par=True,
                                            use_mapping=True)

        flare_calc_dict[md_engine] = flare_calculator
        print(md_engine)
    yield flare_calc_dict
    del flare_calc_dict
コード例 #7
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def test_initialization2(ones):
    """
    check ones, random
    """
    pm = ParameterHelper(
        kernels=["twobody", "threebody"],
        parameters={"cutoff_twobody": 2, "cutoff_threebody": 1, "noise": 0.05},
        ones=ones,
        random=not ones,
        verbose="DEBUG",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)
コード例 #8
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def test_initialization2(ones):
    '''
    check ones, random
    '''
    pm = ParameterHelper(kernels=['twobody', 'threebody'],
                         parameters={'cutoff_twobody': 2,
                                     'cutoff_threebody': 1,
                                     'noise': 0.05},
                         ones=ones,
                         random=not ones,
                         verbose="DEBUG")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)
コード例 #9
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def test_initialization():
    '''
    simplest senario
    '''
    pm = ParameterHelper(kernels=['twobody', 'threebody'],
                         parameters={'twobody': [1, 0.5],
                                     'threebody': [1, 0.5],
                                     'cutoff_twobody': 2,
                                     'cutoff_threebody': 1,
                                     'noise': 0.05},
                         verbose="DEBUG")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)
コード例 #10
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def test_from_dict():
    pm = ParameterHelper(
        species=["O", "C", "H"],
        kernels=["twobody", "threebody"],
        allseparate=True,
        random=True,
        parameters={"cutoff_twobody": 7, "cutoff_threebody": 4.5, "cutoff_manybody": 3},
        verbose="debug",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)

    pm1 = ParameterHelper.from_dict(hm, verbose="debug", init_spec=["O", "C", "H"])
    hm1 = pm1.as_dict()
    Parameters.compare_dict(hm, hm1)
コード例 #11
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def test_initialization():
    """
    simplest senario
    """
    pm = ParameterHelper(
        kernels=["twobody", "threebody"],
        parameters={
            "twobody": [1, 0.5],
            "threebody": [1, 0.5],
            "cutoff_twobody": 2,
            "cutoff_threebody": 1,
            "noise": 0.05,
        },
        verbose="DEBUG",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)
コード例 #12
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def test_from_dict():
    pm = ParameterHelper(species=['O', 'C', 'H'],
                         kernels=['twobody', 'threebody'],
                         allseparate=True,
                         random=True,
                         parameters={'cutoff_twobody': 7,
                                     'cutoff_threebody': 4.5,
                                     'cutoff_manybody': 3},
                         verbose="debug")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)

    pm1 = ParameterHelper.from_dict(
        hm, verbose="debug", init_spec=['O', 'C', 'H'])
    hm1 = pm1.as_dict()
    Parameters.compare_dict(hm, hm1)
コード例 #13
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def test_constraints2():
    '''
    simplest senario
    '''
    pm = ParameterHelper(kernels=['twobody', 'threebody'],
                         parameters={'twobody': [1, 0.5],
                                     'threebody': [1, 0.5],
                                     'cutoff_twobody': 2,
                                     'cutoff_threebody': 1,
                                     'noise': 0.05},
                         constraints={'twobody': [True, False]},
                         verbose="DEBUG")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)
    hyps = hm['hyps']
    assert hyps[0] == 1
    assert hyps[1] == 1
コード例 #14
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def test_initialization3():
    """check group definition"""
    pm = ParameterHelper(
        species=["O", "C", "H"],
        kernels={
            "twobody": [["*", "*"], ["O", "O"]],
            "threebody": [["*", "*", "*"], ["O", "O", "O"]],
        },
        parameters={
            "twobody0": [1, 0.5],
            "twobody1": [2, 0.2],
            "threebody0": [1, 0.5],
            "threebody1": [2, 0.2],
            "cutoff_twobody": 2,
            "cutoff_threebody": 1,
        },
        verbose="DEBUG",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)
コード例 #15
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def test_opt():
    pm = ParameterHelper(
        species=["O", "C", "H"],
        kernels={
            "twobody": [["*", "*"], ["O", "O"]],
            "threebody": [["*", "*", "*"], ["O", "O", "O"]],
        },
        parameters={
            "twobody0": [1, 0.5, 1],
            "twobody1": [2, 0.2, 2],
            "threebody0": [1, 0.5],
            "threebody1": [2, 0.2],
            "cutoff_twobody": 2,
            "cutoff_threebody": 1,
        },
        constraints={"twobody0": [False, True]},
        verbose="DEBUG",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)
コード例 #16
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def test_constraints2():
    """
    simplest senario
    """
    pm = ParameterHelper(
        kernels=["twobody", "threebody"],
        parameters={
            "twobody": [1, 0.5],
            "threebody": [1, 0.5],
            "cutoff_twobody": 2,
            "cutoff_threebody": 1,
            "noise": 0.05,
        },
        constraints={"twobody": [True, False]},
        verbose="DEBUG",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)
    hyps = hm["hyps"]
    assert hyps[0] == 1
    assert hyps[1] == 1
コード例 #17
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def test_initialization5():
    """check universal"""
    pm = ParameterHelper(
        species=["O", "C", "H"],
        kernels={
            "twobody": [["*", "*"], ["O", "O"]],
            "threebody": [["*", "*", "*"], ["O", "O", "O"]],
        },
        parameters={
            "sigma": 1,
            "lengthscale": 0.5,
            "cutoff_threebody": 3,
            "cutoff_twobody": 2,
        },
        verbose="DEBUG",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)

    pm = ParameterHelper(
        kernels=["twobody", "threebody"],
        parameters={
            "sigma": 1.0,
            "lengthscale": 0.5,
            "cutoff_twobody": 2,
            "cutoff_threebody": 1,
            "noise": 0.05,
        },
        verbose="DEBUG",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)
コード例 #18
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def test_check_one_conflict():
    '''
    simplest senario
    '''
    with raises(RuntimeError):
        pm = ParameterHelper(kernels=['twobody', 'threebody'],
                             parameters={'cutoff_twobody': 2,
                                         'cutoff_threebody': 1,
                                         'noise': 0.05},
                             ones=True,
                             random=True,
                             verbose="DEBUG")

    with raises(RuntimeError):
        pm = ParameterHelper(kernels=['twobody', 'threebody'],
                             parameters={'sigma': 0.5, 'lengthscale': 1.0,
                                         'cutoff_twobody': 2,
                                         'cutoff_threebody': 1,
                                         'noise': 0.05},
                             ones=True,
                             random=False,
                             verbose="DEBUG")
コード例 #19
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def test_constraints1():
    """
    simplest senario
    """
    pm = ParameterHelper(
        species=["O", "C", "H"],
        kernels={
            "twobody": [["*", "*"], ["O", "O"]],
            "threebody": [["*", "*", "*"], ["O", "O", "O"]],
        },
        parameters={
            "twobody0": [1, 0.5],
            "twobody1": [2, 0.2],
            "threebody0": [1, 0.5],
            "threebody1": [2, 0.2],
            "cutoff_twobody": 2,
            "cutoff_threebody": 1,
        },
        constraints={
            "twobody0": [True, False],
            "threebody0": [False, True],
            "noise": False,
        },
        verbose="DEBUG",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)
    assert hm["train_noise"] is False
    hyps = hm["hyps"]
    assert len(hyps) == 6
    assert hyps[0] == 1
    assert hyps[1] == 2
    assert hyps[2] == 0.2
    assert hyps[3] == 2
    assert hyps[4] == 0.5
    assert hyps[5] == 0.2
コード例 #20
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def test_initialization_allsep(ones):
    '''
    check ones, random
    '''
    specie_list = ['C', 'H', 'O']
    pm = ParameterHelper(species=specie_list,
                         kernels=['twobody', 'threebody'],
                         parameters={'cutoff_twobody': 2,
                                     'cutoff_threebody': 1,
                                     'noise': 0.05},
                         allseparate=True,
                         ones=ones,
                         random=not ones,
                         verbose="DEBUG")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)
    name_list = []
    for i in range(3):
        name = pm.find_group('specie', specie_list[i])
        assert name not in name_list
        name_list += [name]
    name_list = []
    for i in range(3):
        for j in range(i, 3):
            name = pm.find_group('twobody', [specie_list[i], specie_list[j]])
            assert name not in name_list
            name_list += [name]

    with raises(RuntimeError):
        pm = ParameterHelper(species=[],
                             kernels=['twobody', 'threebody'],
                             parameters={'cutoff_twobody': 2,
                                         'cutoff_threebody': 1,
                                         'noise': 0.05},
                             allseparate=True,
                             ones=ones,
                             random=not ones)
コード例 #21
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def test_initialization_allsep(ones):
    """
    check ones, random
    """
    specie_list = ["C", "H", "O"]
    pm = ParameterHelper(
        species=specie_list,
        kernels=["twobody", "threebody"],
        parameters={"cutoff_twobody": 2, "cutoff_threebody": 1, "noise": 0.05},
        allseparate=True,
        ones=ones,
        random=not ones,
        verbose="DEBUG",
    )
    hm = pm.as_dict()
    Parameters.check_instantiation(hm["hyps"], hm["cutoffs"], hm["kernels"], hm)
    name_list = []
    for i in range(3):
        name = pm.find_group("specie", specie_list[i])
        assert name not in name_list
        name_list += [name]
    name_list = []
    for i in range(3):
        for j in range(i, 3):
            name = pm.find_group("twobody", [specie_list[i], specie_list[j]])
            assert name not in name_list
            name_list += [name]

    with raises(RuntimeError):
        pm = ParameterHelper(
            species=[],
            kernels=["twobody", "threebody"],
            parameters={"cutoff_twobody": 2, "cutoff_threebody": 1, "noise": 0.05},
            allseparate=True,
            ones=ones,
            random=not ones,
        )
コード例 #22
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def test_initialization5():
    """check universal"""
    pm = ParameterHelper(species=['O', 'C', 'H'],
                         kernels={'twobody': [['*', '*'], ['O', 'O']],
                                  'threebody': [['*', '*', '*'], ['O', 'O', 'O']]},
                         parameters={'sigma': 1, 'lengthscale': 0.5, 'cutoff_threebody': 3,
                                     'cutoff_twobody': 2},
                         verbose="DEBUG")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)

    pm = ParameterHelper(kernels=['twobody', 'threebody'],
                         parameters={'sigma': 1.0, 'lengthscale': 0.5,
                                     'cutoff_twobody': 2,
                                     'cutoff_threebody': 1,
                                     'noise': 0.05},
                         verbose="DEBUG")
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)
コード例 #23
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def get_random_training_set(nenv, nstruc):
    """Create a random training_set array with parameters
    And generate four different kinds of hyperparameter sets:
    * multi hypper parameters with two twobody type and two threebody type
    * constrained optimization, with noise parameter optimized
    * constrained optimization, without noise parameter optimized
    * simple hyper parameters without multihyps set up
    """

    np.random.seed(0)

    cutoffs = {"twobody": 0.8, "threebody": 0.8}
    parameters = {
        "cutoff_twobody": 0.8,
        "cutoff_threebody": 0.8,
        "noise": 0.05
    }

    # 9 different hyper-parameters
    pm = ParameterHelper(
        species=["H", "He"],
        kernels={
            "twobody": [["*", "*"], ["H", "H"]],
            "threebody": [["*", "*", "*"], ["H", "H", "H"]],
        },
        parameters=parameters,
        ones=True,
        random=False,
        verbose="DEBUG",
    )
    hyps_mask1 = pm.as_dict()

    # 9 different hyper-parameters, onlye train the 0, 2, 4, 6, 8
    pm.set_constraints("twobody0", [True, True])
    pm.set_constraints("twobody1", [False, False])
    pm.set_constraints("threebody0", [True, True])
    pm.set_constraints("threebody1", [False, False])
    hyps_mask2 = pm.as_dict()

    # 9 different hyper-parameters, only train the 0, 2, 4, 6
    pm.set_constraints("noise", False)
    hyps_mask3 = pm.as_dict()

    # 5 different hyper-parameters, equivalent to no multihyps
    pm = ParameterHelper(
        species=["H", "He"],
        kernels={
            "twobody": [["*", "*"]],
            "threebody": [["*", "*", "*"]]
        },
        parameters=parameters,
        ones=True,
        random=False,
        verbose="DEBUG",
    )
    hyps_mask4 = pm.as_dict()

    # 5 different hyper-parameters, no multihyps
    pm = ParameterHelper(
        kernels=["twobody", "threebody"],
        parameters=parameters,
        ones=True,
        random=False,
        verbose="DEBUG",
    )
    hyps_mask5 = pm.as_dict()

    hyps_mask_list = [
        hyps_mask1, hyps_mask2, hyps_mask3, hyps_mask4, hyps_mask5
    ]

    # create training environments and forces
    cell = np.eye(3)
    unique_species = [0, 1]
    noa = 5
    training_data = []
    training_labels = []
    for _ in range(nenv):
        positions = np.random.uniform(-1, 1, [noa, 3])
        species = np.random.randint(0, len(unique_species), noa) + 1
        struc = Structure(cell, species, positions)
        training_data += [AtomicEnvironment(struc, 1, cutoffs)]
        training_labels += [np.random.uniform(-1, 1, 3)]
    training_labels = np.hstack(training_labels)

    # create training structures and energies
    training_structures = []
    energy_labels = []
    for _ in range(nstruc):
        positions = np.random.uniform(-1, 1, [noa, 3])
        species = np.random.randint(0, len(unique_species), noa) + 1
        struc = Structure(cell, species, positions)
        struc_envs = []
        for n in range(noa):
            struc_envs.append(AtomicEnvironment(struc, n, cutoffs))
        training_structures.append(struc_envs)
        energy_labels.append(np.random.uniform(-1, 1))
    energy_labels = np.array(energy_labels)

    # store it as global variables
    name = "unit_test"
    flare.gp_algebra._global_training_data[name] = training_data
    flare.gp_algebra._global_training_labels[name] = training_labels
    flare.gp_algebra._global_training_structures[name] = training_structures
    flare.gp_algebra._global_energy_labels[name] = energy_labels

    energy_noise = 0.01

    return name, cutoffs, hyps_mask_list, energy_noise
コード例 #24
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def test_generate_by_list_error():

    pm = ParameterHelper(verbose="DEBUG")
    pm.list_groups('specie', ['O', ['C', 'N'], 'H'])
    with raises(RuntimeError):
        pm.list_groups('specie', ['O', 'C', 'H'])

    pm = ParameterHelper(verbose="DEBUG")
    with raises(RuntimeError):
        pm.list_groups('specie', 'O')

    pm = ParameterHelper(verbose="DEBUG")
    with raises(RuntimeError):
        pm.list_groups('specie', 'O')
コード例 #25
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def test_generate_by_list2():

    pm = ParameterHelper(verbose="DEBUG")
    pm.list_groups('specie', {'s1': 'O', 's2': ['C', 'N'], 's3': 'H'})
    pm.list_groups(
        'twobody', {'t0': ['*', '*'], 't1': [['s1', 's1'], ['s1', 's3']]})
    pm.list_groups('threebody', [['*', '*', '*'], ['s1', 's1', 's1']])
    pm.list_parameters({'t0': [1, 0.5], 't1': [2, 0.2],
                        'threebody0': [1, 0.5], 'threebody1': [2, 0.2],
                        'cutoff_twobody': 2, 'cutoff_threebody': 1})
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)
コード例 #26
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ファイル: fake_gp.py プロジェクト: aaronchen0316/myflare
def generate_hm(ntwobody, nthreebody, nmanybody=1, constraint=False, multihyps=True):

    cutoff = 0.8
    if multihyps is False:
        kernels = []
        parameters = {}
        if ntwobody > 0:
            kernels += ["twobody"]
            parameters["cutoff_twobody"] = cutoff
        if nthreebody > 0:
            kernels += ["threebody"]
            parameters["cutoff_threebody"] = cutoff
        if nmanybody > 0:
            kernels += ["manybody"]
            parameters["cutoff_manybody"] = cutoff
        pm = ParameterHelper(kernels=kernels, random=True, parameters=parameters)
        hm = pm.as_dict()
        hyps = hm["hyps"]
        cut = hm["cutoffs"]
        return hyps, hm, cut

    pm = ParameterHelper(species=["H", "He"], parameters={"noise": 0.05})
    if ntwobody > 0:
        pm.define_group("twobody", "b1", ["*", "*"], parameters=random(2))
        pm.set_parameters("cutoff_twobody", cutoff)
    if nthreebody > 0:
        pm.define_group("threebody", "t1", ["*", "*", "*"], parameters=random(2))
        pm.set_parameters("cutoff_threebody", cutoff)
    if nmanybody > 0:
        pm.define_group("manybody", "manybody1", ["*", "*"], parameters=random(2))
        pm.set_parameters("cutoff_manybody", cutoff)
    if ntwobody > 1:
        pm.define_group("twobody", "b2", ["H", "H"], parameters=random(2))
    if nthreebody > 1:
        pm.define_group("threebody", "t2", ["H", "H", "H"], parameters=random(2))

    if constraint is False:
        hm = pm.as_dict()
        hyps = hm["hyps"]
        cut = hm["cutoffs"]
        return hyps, hm, cut

    pm.set_constraints("b1", opt=[True, False])
    pm.set_constraints("t1", opt=[False, True])
    hm = pm.as_dict()
    hyps = hm["hyps"]
    cut = hm["cutoffs"]
    return hyps, hm, cut
コード例 #27
0
ファイル: fake_gp.py プロジェクト: kitpeng11/flare
def generate_hm(ntwobody, nthreebody, nmanybody=1, constraint=False, multihyps=True):

    cutoff = 0.8
    if (multihyps is False):
        kernels = []
        parameters = {}
        if (ntwobody > 0):
            kernels += ['twobody']
            parameters['cutoff_twobody'] = cutoff
        if (nthreebody > 0):
            kernels += ['threebody']
            parameters['cutoff_threebody'] = cutoff
        if (nmanybody > 0):
            kernels += ['manybody']
            parameters['cutoff_manybody'] = cutoff
        pm = ParameterHelper(kernels=kernels, random=True,
                parameters=parameters)
        hm = pm.as_dict()
        hyps = hm['hyps']
        cut = hm['cutoffs']
        return hyps, hm, cut

    pm = ParameterHelper(species=['H', 'He'], parameters={'noise':0.05})
    if (ntwobody > 0):
        pm.define_group('twobody', 'b1', ['*', '*'], parameters=random(2))
        pm.set_parameters('cutoff_twobody', cutoff)
    if (nthreebody > 0):
        pm.define_group('threebody', 't1', ['*', '*', '*'], parameters=random(2))
        pm.set_parameters('cutoff_threebody', cutoff)
    if (nmanybody > 0):
        pm.define_group('manybody', 'manybody1', ['*', '*'], parameters=random(2))
        pm.set_parameters('cutoff_manybody', cutoff)
    if (ntwobody > 1):
        pm.define_group('twobody', 'b2', ['H', 'H'], parameters=random(2))
    if (nthreebody > 1):
        pm.define_group('threebody', 't2', ['H', 'H', 'H'], parameters=random(2))

    if (constraint is False):
        hm = pm.as_dict()
        hyps = hm['hyps']
        cut = hm['cutoffs']
        return hyps, hm, cut

    pm.set_constraints('b1', opt=[True, False])
    pm.set_constraints('t1', opt=[False, True])
    hm = pm.as_dict()
    hyps = hm['hyps']
    cut = hm['cutoffs']
    return hyps, hm, cut
コード例 #28
0
def generate_diff_hm(kernels, diff_cutoff=False, constraint=False):

    pm = ParameterHelper(species=["H", "He"], parameters={"noise": 0.05})

    if "twobody" in kernels:
        para1 = 2.5 + 0.1 * random(3)
        para2 = 2.5 + 0.1 * random(3)
        pm.set_parameters("cutoff_twobody", para1[-1])
        pm.define_group("twobody", "twobody0", ["*", "*"])
        pm.set_parameters("twobody0", para1[:-1], not constraint)
        pm.define_group("twobody", "twobody1", ["H", "H"], para2[:-1])

        if diff_cutoff:
            pm.set_parameters("twobody0", para1, not constraint)
            pm.set_parameters("twobody1", para2)

    if "threebody" in kernels:
        para1 = 1.2 + 0.1 * random(3)
        para2 = 1.2 + 0.1 * random(3)
        pm.set_parameters("cutoff_threebody", para1[-1])
        pm.define_group("threebody", "threebody0", ["*", "*", "*"], para1[:-1])
        pm.set_parameters("threebody0", para1[:-1], not constraint)
        pm.define_group("threebody", "threebody1", ["H", "H", "H"], para2[:-1])

        if diff_cutoff:
            pm.define_group("cut3b", "c1", ["*", "*"], parameters=para1)
            pm.define_group("cut3b", "c2", ["H", "H"], parameters=para2)

    if "manybody" in kernels:
        para1 = 1.2 + 0.1 * random(3)
        para2 = 1.2 + 0.1 * random(3)

        pm.set_parameters("cutoff_manybody", para1[-1])
        pm.define_group("manybody", "manybody0", ["*", "*"])
        pm.set_parameters("manybody0", para1[:-1], not constraint)
        pm.define_group("manybody", "manybody1", ["H", "H"], para2[:-1])

        if diff_cutoff:
            pm.set_parameters("manybody0", para1, not constraint)
            pm.set_parameters("manybody1", para2)

    hm = pm.as_dict()
    hyps = hm["hyps"]
    cut = hm["cutoffs"]

    return cut, hyps, hm
コード例 #29
0
def generate_same_hm(kernels, multi_cutoff=False):
    """
    generate hyperparameter and masks that are effectively the same
    but with single or multi group expression
    """
    pm1 = ParameterHelper(species=["H", "He"], parameters={"noise": 0.05})

    pm2 = ParameterHelper(species=["H", "He"], parameters={"noise": 0.05})

    if "twobody" in kernels:
        para = 2.5 + 0.1 * random(3)
        pm1.set_parameters("cutoff_twobody", para[-1])
        pm1.define_group("twobody", "twobody0", ["*", "*"], para[:-1])

        pm2.set_parameters("cutoff_twobody", para[-1])
        pm2.define_group("twobody", "twobody0", ["*", "*"], para[:-1])
        pm2.define_group("twobody", "twobody1", ["H", "H"], para[:-1])

        if multi_cutoff:
            pm2.set_parameters("twobody0", para)
            pm2.set_parameters("twobody1", para)

    if "threebody" in kernels:
        para = 1.2 + 0.1 * random(3)
        pm1.set_parameters("cutoff_threebody", para[-1])
        pm1.define_group("threebody", "threebody0", ["*", "*", "*"], para[:-1])

        pm2.set_parameters("cutoff_threebody", para[-1])
        pm2.define_group("threebody", "threebody0", ["*", "*", "*"], para[:-1])
        pm2.define_group("threebody", "threebody1", ["H", "H", "H"], para[:-1])

        if multi_cutoff:
            pm2.define_group("cut3b", "c1", ["*", "*"], parameters=para)
            pm2.define_group("cut3b", "c2", ["H", "H"], parameters=para)

    if "manybody" in kernels:
        para = 1.2 + 0.1 * random(3)

        pm1.set_parameters("cutoff_manybody", para[-1])
        pm1.define_group("manybody", "manybody0", ["*", "*"], para[:-1])

        pm2.set_parameters("cutoff_manybody", para[-1])
        pm2.define_group("manybody", "manybody0", ["*", "*"], para[:-1])
        pm2.define_group("manybody", "manybody1", ["H", "H"], para[:-1])

        if multi_cutoff:
            pm2.set_parameters("manybody0", para)
            pm2.set_parameters("manybody1", para)

    hm1 = pm1.as_dict()
    hyps1 = hm1["hyps"]
    cut = hm1["cutoffs"]

    hm2 = pm2.as_dict()
    hyps2 = hm2["hyps"]
    cut = hm2["cutoffs"]

    return cut, hyps1, hyps2, hm1, hm2
コード例 #30
0
def test_generate_by_line2():

    pm = ParameterHelper(verbose="DEBUG")
    pm.define_group('specie', 'O', ['O'])
    pm.define_group('specie', 'rest', ['C', 'H'])
    pm.define_group('twobody', '**', ['*', '*'])
    pm.define_group('twobody', 'OO', ['O', 'O'])
    pm.define_group('threebody', '***', ['*', '*', '*'])
    pm.define_group('threebody', 'Oall', ['O', 'O', 'O'])
    pm.set_parameters('**', [1, 0.5])
    pm.set_parameters('OO', [1, 0.5])
    pm.set_parameters('Oall', [1, 0.5])
    pm.set_parameters('***', [1, 0.5])
    pm.set_parameters('cutoff_twobody', 5)
    pm.set_parameters('cutoff_threebody', 4)
    hm = pm.as_dict()
    Parameters.check_instantiation(
        hm['hyps'], hm['cutoffs'], hm['kernels'], hm)