WIP : Fix Nan Issue

.github/workflows/build.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: [3.8]
+        version: ['3.8', '3.10']
 
     steps:
     - name: Cancel Previous Runs

docs/example/scf/scf.py

@@ -4,7 +4,7 @@
 calc = ['pyscf',            # pyscf  
         'adf',          # adf 2019 
         'adf2019'               # adf 2020+
-    ][1]
+    ][0]
 
 # select an appropriate basis
 basis = {

qmctorch/utils/algebra_utils.py

@@ -1,5 +1,6 @@
 import torch
-
+import numpy as np
+from scipy.special import factorial2 as f2
 
 def btrace(M):
     """Computes the trace of batched matrices
@@ -43,6 +44,19 @@ def bdet2(M):
     return M[..., 0, 0] * M[..., 1, 1] - M[..., 0, 1] * M[..., 1, 0]
 
 
+def double_factorial(input):
+    """Computes the double factorial of an array of int
+
+    Args:
+        input (List): input numbers
+
+    Returns:
+        List: values of the double factorial
+    """
+    output = f2(input)
+    return np.array([1 if o==0 else o for o in output])
+
+
 class BatchDeterminant(torch.autograd.Function):
 
     @staticmethod

qmctorch/utils/torch_utils.py

@@ -6,14 +6,14 @@
 
 def set_torch_double_precision():
     """Set the default precision to double for all torch tensors."""
-    torch.set_default_dtype = torch.float64
-    torch.set_default_tensor_type(torch.DoubleTensor)
+    torch.set_default_dtype(torch.float64)
+    # torch.set_default_tensor_type(torch.DoubleTensor)
 
 
 def set_torch_single_precision():
     """Set the default precision to single for all torch tensors."""
-    torch.set_default_dtype = torch.float32
-    torch.set_default_tensor_type(torch.FloatTensor)
+    torch.set_default_dtype(torch.float32)
+    # torch.set_default_tensor_type(torch.FloatTensor)
 
 
 def fast_power(x, k, mask0=None, mask2=None):

qmctorch/wavefunction/orbitals/norm_orbital.py

@@ -1,6 +1,6 @@
 import torch
 import numpy as np
-
+from ...utils.algebra_utils import double_factorial
 
 def atomic_orbital_norm(basis):
     """Computes the norm of the atomic orbitals
@@ -77,16 +77,13 @@ def norm_gaussian_spherical(bas_n, bas_exp):
     Returns:
         torch.tensor: normalization factor
     """
-
-    from scipy.special import factorial2 as f2
-
     bas_n = torch.tensor(bas_n)
     bas_n = bas_n + 1.
     exp1 = 0.25 * (2. * bas_n + 1.)
 
     A = torch.tensor(bas_exp)**exp1
     B = 2**(2. * bas_n + 3. / 2)
-    C = torch.as_tensor(f2(2 * bas_n.int() - 1) * np.pi **
+    C = torch.as_tensor(double_factorial(2 * bas_n.int() - 1) * np.pi **
                         0.5).type(torch.get_default_dtype())
 
     return torch.sqrt(B / C) * A
@@ -106,22 +103,20 @@ def norm_slater_cartesian(a, b, c, n, exp):
     Returns:
         torch.tensor: normalization factor
     """
-    from scipy.special import factorial2 as f2
-
     lvals = a + b + c + n + 1.
 
     lfact = torch.as_tensor([np.math.factorial(int(2 * i))
                              for i in lvals]).type(torch.get_default_dtype())
 
     prefact = 4 * np.pi * lfact / ((2 * exp)**(2 * lvals + 1))
 
-    num = torch.as_tensor(f2(2 * a.astype('int') - 1) *
-                          f2(2 * b.astype('int') - 1) *
-                          f2(2 * c.astype('int') - 1)
+    num = torch.as_tensor(double_factorial(2 * a.astype('int') - 1) *
+                          double_factorial(2 * b.astype('int') - 1) *
+                          double_factorial(2 * c.astype('int') - 1)
                           ).type(torch.get_default_dtype())
 
     denom = torch.as_tensor(
-        f2((2 * a + 2 * b + 2 * c + 1).astype('int')
+        double_factorial((2 * a + 2 * b + 2 * c + 1).astype('int')
            )).type(torch.get_default_dtype())
 
     return torch.sqrt(1. / (prefact * num / denom))
@@ -135,22 +130,19 @@ def norm_gaussian_cartesian(a, b, c, exp):
         a (torch.tensor): exponent of x
         b (torch.tensor): exponent of y
         c (torch.tensor): exponent of z
-        exp (torch.tensor): Sater exponent
+        exp (torch.tensor): Slater exponent
 
     Returns:
         torch.tensor: normalization factor
     """
-
-    from scipy.special import factorial2 as f2
-
     pref = torch.as_tensor((2 * exp / np.pi)**(0.75))
     am1 = (2 * a - 1).astype('int')
-    x = (4 * exp)**(a / 2) / torch.sqrt(torch.as_tensor(f2(am1)))
+    x = (4 * exp)**(a / 2) / torch.sqrt(torch.as_tensor(double_factorial(am1)))
 
     bm1 = (2 * b - 1).astype('int')
-    y = (4 * exp)**(b / 2) / torch.sqrt(torch.as_tensor(f2(bm1)))
+    y = (4 * exp)**(b / 2) / torch.sqrt(torch.as_tensor(double_factorial(bm1)))
 
     cm1 = (2 * c - 1).astype('int')
-    z = (4 * exp)**(c / 2) / torch.sqrt(torch.as_tensor(f2(cm1)))
+    z = (4 * exp)**(c / 2) / torch.sqrt(torch.as_tensor(double_factorial(cm1)))
 
     return (pref * x * y * z).type(torch.get_default_dtype())

tests/wavefunction/jastrows/distance/test_elec_elec_distance.py

@@ -1,9 +1,10 @@
 import torch
-from torch.autograd import Variable, grad, gradcheck
+from torch.autograd import Variable, grad
 from qmctorch.wavefunction.jastrows.distance import ElectronElectronDistance
 import unittest
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_elec/orbital_dependent/test_generic_jastrow_orbital.py

@@ -6,12 +6,13 @@
 
 import numpy as np
 import torch
-from torch.autograd import Variable, grad, gradcheck
+from torch.autograd import Variable, grad
 
 from qmctorch.wavefunction.jastrows.elec_elec.jastrow_factor_electron_electron import JastrowFactorElectronElectron
 from qmctorch.wavefunction.jastrows.elec_elec.kernels.fully_connected_jastrow_kernel import FullyConnectedJastrowKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_elec/test_generic_jastrow.py

@@ -10,8 +10,9 @@
 
 from qmctorch.wavefunction.jastrows.elec_elec.jastrow_factor_electron_electron import JastrowFactorElectronElectron
 from qmctorch.wavefunction.jastrows.elec_elec.kernels.fully_connected_jastrow_kernel import FullyConnectedJastrowKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_elec/test_pade_jastrow.py

@@ -5,8 +5,9 @@
 
 from qmctorch.wavefunction.jastrows.elec_elec.jastrow_factor_electron_electron import JastrowFactorElectronElectron
 from qmctorch.wavefunction.jastrows.elec_elec.kernels.pade_jastrow_kernel import PadeJastrowKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_elec/test_pade_jastrow_polynom.py

@@ -5,8 +5,9 @@
 
 from qmctorch.wavefunction.jastrows.elec_elec.jastrow_factor_electron_electron import JastrowFactorElectronElectron
 from qmctorch.wavefunction.jastrows.elec_elec.kernels.pade_jastrow_polynomial_kernel import PadeJastrowPolynomialKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_elec/test_scaled_pade_jastrow.py

@@ -6,8 +6,9 @@
 
 from qmctorch.wavefunction.jastrows.elec_elec.jastrow_factor_electron_electron import JastrowFactorElectronElectron
 from qmctorch.wavefunction.jastrows.elec_elec.kernels.pade_jastrow_kernel import PadeJastrowKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_elec/test_scaled_pade_jastrow_polynom.py

@@ -6,8 +6,9 @@
 
 from qmctorch.wavefunction.jastrows.elec_elec.jastrow_factor_electron_electron import JastrowFactorElectronElectron
 from qmctorch.wavefunction.jastrows.elec_elec.kernels.pade_jastrow_polynomial_kernel import PadeJastrowPolynomialKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_elec_nuc/test_three_body_jastrow_boys_handy.py

@@ -2,11 +2,12 @@
 
 import numpy as np
 import torch
-from torch.autograd import Variable, grad, gradcheck
+from torch.autograd import Variable, grad
 from qmctorch.wavefunction.jastrows.elec_elec_nuclei.jastrow_factor_electron_electron_nuclei import JastrowFactorElectronElectronNuclei
 from qmctorch.wavefunction.jastrows.elec_elec_nuclei.kernels.boys_handy_jastrow_kernel import BoysHandyJastrowKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_elec_nuc/test_three_body_jastrow_fully_connected.py

@@ -2,11 +2,12 @@
 
 import numpy as np
 import torch
-from torch.autograd import Variable, grad, gradcheck
+from torch.autograd import Variable, grad
 from qmctorch.wavefunction.jastrows.elec_elec_nuclei.jastrow_factor_electron_electron_nuclei import JastrowFactorElectronElectronNuclei
 from qmctorch.wavefunction.jastrows.elec_elec_nuclei.kernels.fully_connected_jastrow_kernel import FullyConnectedJastrowKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_nuc/test_electron_nuclei_fully_connected.py

@@ -5,8 +5,9 @@
 from torch.autograd import Variable, grad, gradcheck
 from qmctorch.wavefunction.jastrows.elec_nuclei.jastrow_factor_electron_nuclei import JastrowFactorElectronNuclei
 from qmctorch.wavefunction.jastrows.elec_nuclei.kernels import FullyConnectedJastrowKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/elec_nuc/test_electron_nuclei_pade_jastrow.py

@@ -6,8 +6,9 @@
 
 from qmctorch.wavefunction.jastrows.elec_nuclei.jastrow_factor_electron_nuclei import JastrowFactorElectronNuclei
 from qmctorch.wavefunction.jastrows.elec_nuclei.kernels.pade_jastrow_kernel import PadeJastrowKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/jastrows/test_combined_terms.py

@@ -8,8 +8,9 @@
 from qmctorch.wavefunction.jastrows.elec_elec.kernels import PadeJastrowKernel as PadeJastrowKernelElecElec
 from qmctorch.wavefunction.jastrows.elec_nuclei.kernels import PadeJastrowKernel as PadeJastrowKernelElecNuc
 from qmctorch.wavefunction.jastrows.elec_elec_nuclei.kernels import BoysHandyJastrowKernel, FullyConnectedJastrowKernel
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/orbitals/backflow/test_backflow_kernel_generic_pyscf.py

@@ -9,7 +9,8 @@
 from qmctorch.scf import Molecule
 from qmctorch.wavefunction.orbitals.backflow.kernels import BackFlowKernelBase
 from qmctorch.wavefunction.jastrows.distance.electron_electron_distance import ElectronElectronDistance
-torch.set_default_tensor_type(torch.DoubleTensor)
+from qmctorch.utils import set_torch_double_precision
+set_torch_double_precision()
 
 torch.manual_seed(101)
 np.random.seed(101)

tests/wavefunction/orbitals/backflow/test_backflow_kernel_inverse_pyscf.py

@@ -8,7 +8,8 @@
 from qmctorch.scf import Molecule
 from qmctorch.wavefunction.orbitals.backflow.kernels import BackFlowKernelInverse
 from qmctorch.wavefunction.jastrows.distance.electron_electron_distance import ElectronElectronDistance
-torch.set_default_tensor_type(torch.DoubleTensor)
+from qmctorch.utils import set_torch_double_precision
+set_torch_double_precision()
 
 torch.manual_seed(101)
 np.random.seed(101)

tests/wavefunction/orbitals/backflow/test_backflow_transformation_pyscf.py

@@ -7,7 +7,8 @@
 from qmctorch.scf import Molecule
 from qmctorch.wavefunction.orbitals.backflow.backflow_transformation import BackFlowTransformation
 from qmctorch.wavefunction.orbitals.backflow.kernels import BackFlowKernelInverse
-torch.set_default_tensor_type(torch.DoubleTensor)
+from qmctorch.utils import set_torch_double_precision
+set_torch_double_precision()
 
 torch.manual_seed(101)
 np.random.seed(101)

tests/wavefunction/orbitals/backflow/test_orbital_dependent_backflow_transformation_pyscf.py

@@ -7,7 +7,8 @@
 from qmctorch.scf import Molecule
 from qmctorch.wavefunction.orbitals.backflow.orbital_dependent_backflow_transformation import OrbitalDependentBackFlowTransformation
 from qmctorch.wavefunction.orbitals.backflow.kernels import BackFlowKernelInverse
-torch.set_default_tensor_type(torch.DoubleTensor)
+from qmctorch.utils import set_torch_double_precision
+set_torch_double_precision()
 
 torch.manual_seed(101)
 np.random.seed(101)

tests/wavefunction/orbitals/test_ao_derivatives_adf.py

@@ -6,9 +6,10 @@
 
 from qmctorch.scf import Molecule
 from qmctorch.wavefunction import SlaterJastrow
+from qmctorch.utils import set_torch_double_precision
 from ...path_utils import PATH_TEST
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/orbitals/test_ao_derivatives_pyscf.py

@@ -6,8 +6,9 @@
 
 from qmctorch.scf import Molecule
 from qmctorch.wavefunction import SlaterJastrow
+from qmctorch.utils import set_torch_double_precision
 
-torch.set_default_tensor_type(torch.DoubleTensor)
+set_torch_double_precision()
 
 
 def hess(out, pos):

tests/wavefunction/orbitals/test_backflow_ao_derivatives_pyscf.py

@@ -8,7 +8,8 @@
 from qmctorch.wavefunction import SlaterJastrow
 from qmctorch.wavefunction.orbitals.atomic_orbitals_backflow import AtomicOrbitalsBackFlow
 from qmctorch.wavefunction.orbitals.backflow.kernels import BackFlowKernelInverse
-torch.set_default_tensor_type(torch.DoubleTensor)
+from qmctorch.utils import set_torch_double_precision
+set_torch_double_precision()
 
 torch.manual_seed(101)
 np.random.seed(101)

tests/wavefunction/orbitals/test_orbital_dependent_backflow_ao_derivatives_pyscf.py

@@ -8,7 +8,8 @@
 from qmctorch.wavefunction import SlaterJastrow
 from qmctorch.wavefunction.orbitals.atomic_orbitals_orbital_dependent_backflow import AtomicOrbitalsOrbitalDependentBackFlow
 from qmctorch.wavefunction.orbitals.backflow.kernels import BackFlowKernelInverse
-torch.set_default_tensor_type(torch.DoubleTensor)
+from qmctorch.utils import set_torch_double_precision
+set_torch_double_precision()
 
 torch.manual_seed(101)
 np.random.seed(101)