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NEML2ToMOOSEMaterialProperty.C
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9 
11 #include "NEML2ModelExecutor.h"
12 
13 #define registerNEML2ToMOOSEMaterialProperty(alias) \
14  registerMooseObject("MooseApp", NEML2ToMOOSE##alias##MaterialProperty)
15 
22 
23 template <typename T>
26 {
27  auto params = Material::validParams();
28  params.addClassDescription("Provide an output (or its derivative) from a NEML2 model as a MOOSE "
29  "material property of type " +
30  demangle(typeid(T).name()) + ".");
31 
32  params.addRequiredParam<UserObjectName>("neml2_executor",
33  "User object managing the execution of the NEML2 model.");
34  params.addRequiredParam<MaterialPropertyName>(
35  "to_moose",
36  "MOOSE material property used to store the NEML2 output variable (or its derivative)");
37  params.addRequiredParam<std::string>("from_neml2", "NEML2 output variable to read from");
38  params.addParam<std::string>(
39  "neml2_input_derivative",
40 
41  "If supplied return the derivative of the NEML2 output variable with respect to this");
42  params.addParam<std::string>(
43  "neml2_parameter_derivative",
44  "If supplied return the derivative of neml2_variable with respect to this");
45 
46  // provide an optional initialization of the moose property (because we don't really know if it is
47  // going to become stateful or not)
48  params.addParam<MaterialPropertyName>("moose_material_property_init",
49  "Optional material property as the initial condition");
50 
51  return params;
52 }
53 
54 template <typename T>
56  : Material(params)
57 #ifdef NEML2_ENABLED
58  ,
59  _execute_neml2_model(getUserObject<NEML2ModelExecutor>("neml2_executor")),
60  _prop(declareProperty<T>(getParam<MaterialPropertyName>("to_moose"))),
61  _prop0(isParamValid("moose_material_property_init")
62  ? &getMaterialProperty<T>("moose_material_property_init")
63  : nullptr),
64  _value(!isParamValid("neml2_input_derivative")
65  ? (!isParamValid("neml2_parameter_derivative")
66  ? _execute_neml2_model.getOutput(getParam<std::string>("from_neml2"))
67  : _execute_neml2_model.getOutputParameterDerivative(
68  getParam<std::string>("from_neml2"),
69  getParam<std::string>("neml2_parameter_derivative")))
70  : _execute_neml2_model.getOutputDerivative(
71  getParam<std::string>("from_neml2"),
72  getParam<std::string>("neml2_input_derivative")))
73 #endif
74 {
76 }
77 
78 #ifdef NEML2_ENABLED
79 template <typename T>
80 void
82 {
83  // See issue #28971: Using _prop0 to set initial condition for this possibly stateful property may
84  // not work. As a workaround, we set the initial condition here when _t_step == 0.
85  if (_t_step == 0 && _prop0)
86  {
87  _prop.set() = _prop0->get();
88  return;
89  }
90 
91  if (!_execute_neml2_model.outputReady())
92  return;
93 
94  // look up start index for current element
95  const auto i = _execute_neml2_model.getBatchIndex(_current_elem->id());
96  for (_qp = 0; _qp < _qrule->n_points(); ++_qp)
97  if (_value.batch_dim())
98  NEML2Utils::copyTensorToMOOSEData(_value.batch_index({neml2::Size(i + _qp)}), _prop[_qp]);
99  else
100  NEML2Utils::copyTensorToMOOSEData(_value, _prop[_qp]);
101 }
102 #endif
103 
104 #define instantiateNEML2ToMOOSEMaterialProperty(T) template class NEML2ToMOOSEMaterialProperty<T>
105 
std::string name(const ElemQuality q)
RankFourTensorTempl is designed to handle any N-dimensional fourth order tensor, C.
void computeProperties() override
Performs the quadrature point loop, calling computeQpProperties.
The main MOOSE class responsible for handling user-defined parameters in almost every MOOSE system...
NEML2ToMOOSEMaterialProperty(const InputParameters &params)
instantiateNEML2ToMOOSEMaterialProperty(Real)
static InputParameters validParams()
Definition: Material.C:14
void copyTensorToMOOSEData(const at::Tensor &src, T &dest)
Directly copy a contiguous chunk of memory of a at::Tensor to a MOOSE data of type T...
Definition: NEML2Utils.h:137
std::string demangle(const char *name)
Materials compute MaterialProperties.
Definition: Material.h:35
void assertNEML2Enabled()
Assert that NEML2 is enabled.
Definition: NEML2Utils.C:81
NEML2ModelExecutor executes a NEML2 model.
registerNEML2ToMOOSEMaterialProperty(Real)
SymmetricRankFourTensorTempl is designed to handle an N-dimensional fourth order tensor with minor sy...